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.
Radon in ZIP code 62085
Last updated
ZIP 62085 lies entirely in Macoupin County, Illinois. EPA’s radon zone for this area: Zone 2, moderate potential.
Zone 2 Macoupin County, IL · 100% of the ZIP’s land area
Predicted average indoor screening level from 2 to 4 pCi/L.
What this means for homes in 62085
EPA built its zone map county by county in 1993, so every address in 62085 shares Macoupin County’s prediction. The zone is a starting point, not a measurement of your house. In a Zone 2 area many homes are fine and many are not; only a test tells you which yours is.
Next: read how to test your home, then check the number with the level calculator.
Radon professionals for 62085
These professionals are listed for Macoupin County that 62085 falls in. Featured listings are paid placements and are labelled.
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.
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.
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.
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.
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.
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.
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.
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 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.
See all 59 on the Macoupin County page →
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Nearby ZIP codes in Macoupin County
Illinois radon help
IL Emergency Management Agency Radon Program (217-782-4977) can help with test kits, local data and credentialed professionals: iema.illinois.gov/nrs/radon.html.
Frequently asked questions
What is the radon zone for ZIP code 62085?
ZIP 62085 lies in Macoupin County, which EPA places in Zone 2 (moderate potential).
Should I test for radon in 62085?
Yes. EPA recommends testing every home regardless of zone, because radon varies from house to house. Fix the home if a confirmed result is 4 pCi/L or higher, and consider fixing between 2 and 4 pCi/L.
Are there certified radon professionals near 62085?
This page lists 59 professionals for the county that 62085 falls in, each checked against the state's official certification or licence 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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