618 Construction services LLC
(618) 438-1694✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon professionals in Illinois
353 businesses and individuals: 90 that do mitigation (most also test) and 263 that test only. Illinois listings show the counties each licensee told IEMA they serve.
Source: Illinois Emergency Management Agency (IEMA-OHS) Radon Active Licensee Listing, list dated October 4, 2026. Phone numbers and credentials are as the state published them.
By county
Adams CountyAlexander CountyBond CountyBoone CountyBrown CountyBureau CountyCalhoun CountyCarroll CountyCass CountyChampaign CountyChristian CountyClark CountyClay CountyClinton CountyColes CountyCook CountyCrawford CountyCumberland CountyDe Witt CountyDeKalb CountyDouglas CountyDuPage CountyEdgar CountyEdwards CountyEffingham CountyFayette CountyFord CountyFranklin CountyFulton CountyGallatin CountyGreene CountyGrundy CountyHamilton CountyHancock CountyHardin CountyHenderson CountyHenry CountyIroquois CountyJackson CountyJasper CountyJefferson CountyJersey CountyJo Daviess CountyJohnson CountyKane CountyKankakee CountyKendall CountyKnox CountyLake CountyLaSalle CountyLawrence CountyLee CountyLivingston CountyLogan CountyMacon CountyMacoupin CountyMadison CountyMarion CountyMarshall CountyMason CountyMassac CountyMcDonough CountyMcHenry CountyMcLean CountyMenard CountyMercer CountyMonroe CountyMontgomery CountyMorgan CountyMoultrie CountyOgle CountyPeoria CountyPerry CountyPiatt CountyPike CountyPope CountyPulaski CountyPutnam CountyRandolph CountyRichland CountyRock Island CountySaline CountySangamon CountySchuyler CountyScott CountyShelby CountySt. Clair CountyStark CountyStephenson CountyTazewell CountyUnion CountyVermilion CountyWabash CountyWarren CountyWashington CountyWayne CountyWhite CountyWhiteside CountyWill CountyWilliamson CountyWinnebago CountyWoodford County
Mitigation contractors
Accurate Radon
(630) 876-0800✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Action Radon Mitigation
(314) 623-0116✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Advanced Radon Mitigation, LLC
(618) 910-2034✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Air Sense Environmental
(618) 593-4815✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
American Radon Systems
(815) 370-9682✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Babb's Service Company
(309) 829-9455✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
BAN Radon Mitigation Specialist
(708) 263-9896✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Ben Can Fix It
(815) 246-2654✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Cabeno Environmental
(815) 774-3747✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Central Illinois Radon Mitigation
(217) 520-6630✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Central Radon Systems
(217) 721-4683✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Clarity Radon Solutions
(847) 526-2606✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Clean Air Radon Systems
(630) 474-4455✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
CleanVapor, LLC
(000) 000-0000✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Clue Radon Services
(630) 724-7107✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
CMXtreme Radon
(847) 452-4630✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
David Smith Radon Remedies, Inc.
(309) 777-3910✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Doug Stuedemann Radon Mitigation
(815) 474-3940✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
DuPage Radon Contractors
(630) 836-1918✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Effective Home Services, LLC
(815) 483-8440✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Gardner Environmental Services, Inc.
(888) 715-3800✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Guardian Radon Mitigation
(630) 768-9836✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Hammers Radon Mitigation Solutions, LLC
(217) 670-4292✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Heritage Radon Mitigation, Inc.
(630) 377-9156✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Iconradon
(309) 445-4183✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Illinois Cooling Experts LLC
(618) 417-7276✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Illinois Radon Detection Inc.
(630) 674-5192✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Illinois Valley Radon Mitigation, LLC
(815) 313-5892✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Inspect It Chicago
(630) 890-8634✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
JC Radon Solutions
(630) 546-2007✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
JW Summy Contracting
(309) 525-1744✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Lifetime Home Services, LLC
(262) 955-5701✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
MidAmerica Basement Systems
(800) 541-8006✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
MidAmerica Basement Systems
(563) 381-1700✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Midwest Radon & Home Services Inc.
(630) 709-4261✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Midwest Radon Services, Inc.
(708) 680-6080✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Miller Environmental Mitigation LLC
(618) 520-7409✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
MK Radon Specialists
(815) 666-8002✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Mock's Radon Reduction, Inc.
(217) 242-3121✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Nelson Radon Reduction
(309) 241-8104✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Northern Illinois Radon Remedies Inc
(815) 291-6745✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Norwest Radon Remediation
(815) 590-1800✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Peoria Radon Mitigation, Inc
(309) 243-7377✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Polar Heating and Air Conditioning
(708) 448-1929✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Premier Radon Mitigation, LLC
(312) 731-9391✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pro Radon Mitigation, LLC
(815) 287-9100✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Professional Radon Systems, Inc
(630) 236-4200✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Protect Environmental
(630) 519-6747✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
QC Radon Removal, LLC
(563) 949-5430✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radaquest Radon
(630) 205-4223✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radman Radon
(815) 721-4610✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Check
(219) 322-7403✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Defenders
(269) 446-0558✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Diversion
(815) 994-2073✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Gone LLC
(847) 668-5313✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Mitigation Corporation
(217) 841-7311✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Mitigation Masters
(630) 639-7217✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Professional Services
(708) 935-3206✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Reduction Company
(630) 544-1830✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Reduction Systems, Inc.
(630) 357-9474✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Reduction Technologies
(815) 904-6002✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Remedy
(262) 577-5515✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Rescue Corporation
(800) 500-1232✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Right LLC
(224) 212-9698✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Services
(217) 483-5198✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Shield
(224) 652-9582✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Solutions LLC
(563) 299-1088✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Solutions, LLC
(563) 386-8686✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Solutions, LLC
(563) 210-6029✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Specialist
(217) 259-1504✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Xpress
(779) 875-7226✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
RAM Services
(563) 580-1310✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Schluter Radon Services
(309) 369-7889✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
St. Louis Radon Test and Mitigation LLC
(636) 200-2875✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Stuedemann Radon Resolutions
(815) 343-7090✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Stuedemann Radon Resolutions
(815) 343-7091✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Summit Radon Mitigation
(708) 227-1870✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Superior Radon Solutions
(309) 336-9534✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Swat Environmental
(262) 293-9180✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SWAT Environmental
(262) 754-2211✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SWAT Environmental
(920) 740-3041✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SWAT Environmental
(414) 731-6215✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SWAT Environmental
(844) 331-6440✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
TCD Radon Specialists LLC
(618) 823-8542✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Timmit Radon Systems
(630) 205-3416✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
U.S. Waterproofing
(800) 323-3628✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
VSI Radon Reduction Corp.
(630) 876-1000✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
VSI Radon Reduction Corporation
(815) 344-1100✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Will County Radon
(815) 693-1526✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
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Tell us what you need and we will try to connect you with up to three state-certified or licensed radon professionals who work in your area. It is free and there is no obligation.
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Testing only
815 Radon
(815) 494-8286✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
911 Home Services, Inc
(847) 877-4050✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
A to Z Radon Inspectors
(708) 785-8855✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
A1 Radon Measurement
(815) 236-8200✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
AAS Radon Testing
(224) 440-2455✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Accurate Environmental Solutions
(773) 406-7535✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Accurate Inspections Inc.
(708) 870-2438✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Action Ozone, Inc
(847) 683-7505✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Adem Radon Service
(630) 992-0789✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Aether Radon Solutions LLC
(872) 305-1517✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
All-Home Ispection services
(815) 751-1875✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Alpha Home Inspections
(630) 340-7723✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Alphal Radon Testing
(815) 953-2226✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Alta Inspection Services
(630) 852-0993✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
AmeriChoice Radon Testing, Inc.
(708) 669-6357✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
amerispec inspection services
(630) 554-5900✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Angee Home Inspection LLC
(217) 722-5029✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
AP Inspections, Inc.
(630) 460-6293✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
APEX Radon Detection
(847) 650-9138✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Arc-1 Radon Detection
(618) 606-5542✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Ashley Reitenbach
(312) 218-2882✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Assurance Plus Home Inspections LLC
(309) 737-7055✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
At Ease Inspections
(630) 797-8069✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Attentive Home Inspection LLC
(773) 368-7835✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Bastian Home Inspection
(815) 232-3416✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Bee Sure Home Inspections Services LLC
(773) 425-8275✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Beehive Home Inspections
(801) 661-3321✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Best Test Radon
(847) 370-3916✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Big River Property Inspection LLC
(563) 265-5690✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Bill Nicholson Home Inspection
(708) 595-8858✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
BJM Radon Testing, LLC
(815) 354-5495✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Blue Anchor Property Inspections
(708) 250-6821✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Boomtown Radon Testing
(847) 845-6927✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Brady Inspections
(847) 975-6334✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
BreatheSafe Radon Solutions
(708) 743-3600✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Brickkicker Inc
(800) 821-1820✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Bucher's Radon testing LLC
(630) 632-9913✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Buyer's Companion Inspections
(708) 655-8484✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Buyers Protection Group
(618) 406-8564✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Caire Inspection Group
(630) 272-8872✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Callaway & Associates, Inc
(217) 599-1209✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Carlile Group & Property Services
(815) 401-0526✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Carmen Mihaileanu
(312) 804-3618✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Carnow Conibear
(312) 782-4486✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Castle Home Inspection
(630) 462-1050✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
CCC Real Estate Inspections
(309) 224-3381✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Cebutilla Services
(630) 596-3057✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Central Illinois Home Inspections
(217) 622-6788✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Central Illinois Radon Testing
(309) 253-1455✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Certified Home Inspections LLC
(309) 418-5152✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Check Radon
(708) 790-9070✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Checkpoint Inspections LLC
(708) 567-3512✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Chicago Home Inspect LLC
(224) 633-6161✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Chicago Radon Testing, Inc.
(312) 925-9996✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Chicagoland and Midwest Inspections LLC.
(773) 499-9687✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
City Home Inspectors, LLC
(866) 422-9843✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Classic Environmental Testing LLC
(224) 899-2707✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Clay's Home Inspections
(563) 580-6513✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Consulting Solutions Inc.
(847) 690-0905✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Cornerstone Radon Detection, LLC
(999) 999-9999✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Couri Radon Testing
(309) 258-9435✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
CSI Home Inspection Srvices Inc.
(630) 674-4599✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
DezAir Quality Testing, LLC
(773) 870-4111✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Dhanendra Sharma
(224) 432-7967✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Discover LLC
(866) 750-3456✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Divinity Probe Home Inspections
(630) 544-8147✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
DS Radon Services LLC
(630) 888-4008✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Duffield Consulting Engineers, Ltd.
(815) 693-9871✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
DuPage Radon Testing
(630) 225-7997✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Dynamic Radon Services
(847) 722-5626✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Eagle Eye Home and Property Inspections LLC
(847) 531-0530✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Eagle's Nest Inspections LLC
(309) 323-0252✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Earth 2 Home Inspections, LLC
(217) 904-6463✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Ecosense
(408) 634-2955✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Ekkert Environmental
(630) 209-4145✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
English Radon Measurement
(217) 416-9035✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
ERJ Mamagement, LLC
(847) 417-9778✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Evergreen Property Inspectors, LLC
(877) 805-5255✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Express Home Inspections, LLC
(309) 360-3218✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Extra Mile Inspection
(847) 561-8232✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Falcon Home Inspection & Radon Detection
(847) 643-6565✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
First Look Home Inspection Services
(563) 332-9620✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Foundation First Home Inspections LLC
(847) 807-5161✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Freda Lesh
(708) 860-0897✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Fremantle Inspection Services
(630) 326-8998✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Gallagher Bassett Services, Inc, WCD Group Division
(773) 750-6419✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Gallagher Bassett Technical Services
(630) 879-3006✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Gill Group
(800) 428-3320✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Got Radon? LLC
(262) 358-0997✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
GS and TJ Services
(815) 277-9678✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Hampton Products
(773) 240-6113✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Hanna Radon Detection, Inc.
(847) 791-6805✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Hanna Radon Detection, Inc.
(847) 791-9123✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Hassan Adams
(872) 203-3445✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Hawley Inspections
(618) 593-9631✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Healthy Air Radon Testing
(630) 601-3130✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Healthy Home Inspection Services
(618) 514-1741✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Healthy Homes Inspection Services, LLC
(217) 372-8649✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
HOI Property Services
(309) 712-4189✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home Air Health LLC
(815) 420-1256✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home and Proerty Review, Inc.
(773) 447-3238✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home ase Radon Services
(630) 677-8776✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home Inspections by Mr. Perfection, Inc.
(630) 932-9015✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home Inspector Consultants, Inc
(708) 955-4381✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home Inspector Consultants, Inc
(815) 469-4116✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home Matters
(847) 863-4407✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home Raters, Inc.
(847) 433-3450✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Home-Assure
(618) 539-2084✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Household Inspection Team
(773) 388-9000✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
HouseMaster
(618) 977-7434✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Ideal Home Inspection Services, LLc
(708) 843-3054✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
IEMA-OHS Radon Program
(217) 785-9889✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
ILLIANA Home Inspection, LLC
(217) 853-3467✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Illinois Home Inspection, LLC
(800) 691-2686✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Indoor Sciences, Inc
(312) 920-9393✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Insight Home Inspections
(309) 558-8793✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
InspectingPro.com
(730) 230-8642✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Inspectrum Inc
(773) 929-9889✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
James R. Cole
(309) 337-5623✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
JBL Radon Gas Detection LLC
(630) 212-8492✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
JT Inspection Services
(309) 221-2524✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Kane County Radon Testing LLC
(630) 777-8382✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Kinduet Home Inspections, Inc.
(815) 494-4189✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Know Radon, Inc.
(847) 888-6774✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Larry Test Radon
(630) 827-9919✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Lask Inspection Group, LLC.
(815) 978-7785✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Lawlor Home Inspections
(201) 835-3295✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Legacy Inspection Group
(847) 217-5958✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Libra Inspections LLC
(217) 402-8393✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Limited Exposure Environmental LLC
(630) 709-6434✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Little Egypt Radon & Mold Testing
(618) 315-0768✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Livin Company
(847) 542-1979✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
LM Radon Testing Service
(309) 824-7068✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Local Radon Testing
(630) 881-2430✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Martin Home Inspectors
(309) 361-4640✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Matthew Mumm
(331) 219-8347✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Maximilian Ortega
(847) 630-3555✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Mecca Home Inspections LLC
(224) 381-2284✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Meck Home Inspections
(708) 300-5771✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Merino's Home Inspection & Education Inc.
(708) 612-6679✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Midwest Radon & Environmental Testing
(217) 413-0221✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Miller Home Inspection, LLC
(618) 303-9109✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
MJS Inspections, Inc
(847) 417-3227✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Multifamily Radon, Inc
(773) 415-6334✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Murray Inspections LLC
(618) 713-6204✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
My Radon Pro
(224) 717-4600✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
National Property Inspections
(563) 359-6749✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Next Level Inspections, LLC
(630) 445-3999✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
North Shore Building Consultants, Inc.
(847) 604-8046✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Northeast Illinois Radon Testing
(847) 566-1540✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
On Center Inspections, Inc.
(773) 720-6221✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
On Point Inspections Inc.
(708) 935-0284✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Optimal Home Inspections, LLC
(773) 710-5891✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Partner Assessment Corporation
(310) 615-4500✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Paynes Inspection
(708) 257-1476✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pepper Environmental Technologies
(630) 710-3834✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Perfection Home Inspection
(630) 904-2263✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Peterson Home Inspections
(563) 343-6167✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pillar to Post
(618) 494-8900✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pillar To Post
(309) 688-4490✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pillar to Post Home Inspectors
(815) 517-0025✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pioneer Engineering & Environmental Services, LLC
(773) 722-9200✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Platinum Radon Detectives
(847) 708-1368✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Plus Ultra Home Inspections LLC
(618) 866-2140✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Powers Radon Mesurement Services
(217) 494-0300✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Precise Realty Inspections
(815) 953-6414✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Precision Environmental Services
(708) 625-4488✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Precision Inspection Group
(708) 969-6017✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Preferred Property Inspection Services, Inc.
(630) 636-9676✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Premier Plus Home Inspections
(708) 790-2403✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Prime Radon Testing, LLC
(618) 210-1344✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Priority Lab LLC
(888) 854-0477✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pristine Inspections & Testing, Inc.
(217) 352-3743✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pro Radon Testing LLC
(630) 589-4029✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Pro-Tech Home Inspections
(847) 815-4541✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Professional Radon Diagnostics
(312) 343-1736✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Professional Radon Testers
(630) 605-8964✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Property Guidance Inspection LLC
(773) 469-3390✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Protect Environmental
(502) 496-4383✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Protect Environmental
(502) 410-5000✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
QC Allspect, LLC
(563) 639-1976✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
QHSG Inc.
(847) 652-7160✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Quad City Radon Testing
(309) 230-6303✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Quality Assurance Radon Testing, Inc.
(630) 973-9840✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Quality Environmental Testing, Inc.
(708) 243-5945✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Quality Testing & Engineering, Inc
(618) 632-9900✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radalink, Inc.
(770) 457-1944✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon & Mold Testing Services
(630) 935-2888✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon 123
(847) 347-4502✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon 123
(847) 293-8064✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon and Mold Testers of Illinois
(773) 447-0639✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Dave LLC
(312) 371-1519✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Detection Specialists, Inc.
(630) 325-4443✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Diagnostics, Inc.
(847) 312-6538✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Fighters Inc.
(217) 823-9536✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Rach LLC
(312) 401-0299✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Rach LLC
(312) 401-9588✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Safe LLC
(815) 848-4550✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Safety Squad, Inc.
(618) 667-2366✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Tec
(312) 246-2756✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Testers, Inc.
(630) 260-0700✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Testing and Solutions
(708) 514-1620✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon Testing Partners
(847) 409-8168✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Radon-tek
(847) 514-7872✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
RadonEDU LLC
(630) 849-1671✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
RadonIQ
(224) 428-4270✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Real Estate Advisory
(630) 246-0745✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Real Inspection Services
(312) 724-5100✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Red Line Home Inspection Services LLC
(847) 774-2911✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Reliable Property Inspection LLC
(630) 464-5500✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Reliable Radon Inspections, Inc
(877) 997-2366✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Reveal Home Services LLC
(773) 340-9490✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
RFD Radon LLC
(563) 949-0442✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Riaz Ahmed Radon Measurement
(630) 863-6358✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Right Home Inspection, Inc.
(847) 769-8127✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Rimkus
(800) 580-3228✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
RK Homeguardians, Inc
(847) 401-1814✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Roche Home Experts LLC
(773) 259-6885✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Rock Solid Inspections
(309) 238-0300✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Rock Valley Home Inspections
(608) 290-8936✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Rojek Home Services
(815) 255-4988✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Rssi
(847) 965-1999✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
RZ Radon Measurement Services
(630) 670-4202✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
S.O.S Radon Testing
(815) 895-2517✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Safe and Sound Home Inspection LLC
(708) 967-3122✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Safe At Home
(815) 978-4382✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Safeguard Inspections
(618) 623-7708✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SafeHouse Radon Testing, Inc.
(773) 771-6466✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SafeNest Radon
(815) 238-0196✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SafeSmart Home Inspection
(773) 993-4134✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Sam's Professional Radon Testing
(815) 685-6745✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Sego Inspections, Inc
(309) 663-8827✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Sherlock Homes PS, LTD
(419) 957-2422✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
SLS Home Inspections
(815) 644-6271✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Spot On Home Inspections Inc
(630) 542-0273✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Stacy Gee
(217) 273-0267✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Stafford Home Services, LLN (dba WIN)
(708) 870-6471✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Stro's Radon LLC
(815) 751-5273✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Stu's Absolute Inspections, Inc.
(630) 441-7669✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Summit Ridge Inspection Group, LLC
(815) 269-5075✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Syte Inspections LLC
(224) 400-1006✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Szymon Srebro
(773) 934-0021✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
T-Rex Inspections Inc.
(262) 581-3367✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Taylor Home Inspection Service
(815) 866-3793✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
TEM Environmental, Inc.
(630) 790-0880✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
The BrickKicker
(630) 332-0804✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
The Brickkicker of the Quad Cities
(563) 359-0938✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
the inspector llc
(773) 691-2180✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
The Radon Measurement Professional
(217) 502-1334✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
The Radon Pro
(773) 251-1000✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Town and Country Inspections, Inc.
(618) 830-3063✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Tri-County Radon Measurement
(708) 429-0436✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Unique Radon Testing, Inc.
(773) 544-0817✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
US Environmental Testing / Northern Illinois Radon LLC
(630) 915-9434✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Valor Property Inspections, LLC
(773) 550-1967✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Vertical Inspections Inc
(262) 620-8092✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
VS Radon Professionals LLC
(224) 296-9654✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Walsh Environmental, LLC
(708) 715-0008✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Weaver Consultants Group
(630) 717-4848✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
White Glove Building Inspections
(630) 495-4555✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Wilmen Home LLC
(630) 733-1202✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
WIN Home Inspection
(618) 534-3526✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
WIN Home Inspection
(815) 653-0600✓ Verified October 4, 2026 on the official state list dated October 4, 2026, double-checked against a second state list.
Free checklist · PDF
Radon Test Checklist
A one-page, step-by-step checklist for running a home radon test right the first time, and what to do with the number.
- Short-term vs. long-term test: which to use
- Closed-house conditions and where to place the kit
- What 2, 4 and 8 pCi/L mean and when to fix
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