Accurate Radon Control Inc.
(215) 541-1557✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Radon in ZIP code 18070
Last updated
ZIP 18070 crosses 2 county lines. Most of its land (60.7%) is in Montgomery County, Pennsylvania. EPA’s radon zone for this area: Zone 1, highest potential.
Zone 1 Montgomery County, PA · 60.7% of the ZIP’s land area
Predicted average indoor screening level above 4 pCi/L.
Zone 1 Berks County, PA · 39.3% of the ZIP’s land area
Predicted average indoor screening level above 4 pCi/L.
What this means for homes in 18070
EPA built its zone map county by county in 1993, so every address in each part of 18070 shares its county’s prediction. The zone is a starting point, not a measurement of your house. Zone 1 areas like this one have a high share of homes above 4 pCi/L, so testing is a priority.
Because 18070 crosses county lines, your county depends on your street. Your property tax bill or county assessor site shows which county you are in. Next: read how to test your home, then check the number with the level calculator.
Radon professionals for 18070
These professionals are listed for the counties that 18070 falls in. Featured listings are paid placements and are labelled.
Airotox
(215) 247-6869✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
David Yorgey
(215) 510-6762✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Radon Technology & Enviromental Inc.
(610) 495-2810✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Radon-Rid LLC
(610) 222-2273✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Thomas Hollingsworth
(484) 460-9697✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Timothy J. Gentry
(215) 672-8529✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Armored Home Inspections, LLC
(610) 352-2212✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Brody Mcguinness
(610) 471-5958✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Christopher D'arcy
(215) 968-1933✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Christopher Eslinger
(267) 902-6421✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Craig Lennox
(610) 277-4953✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
See all 34 on the Montgomery County page →
Free, no obligation
Get radon quotes from certified pros in ZIP 18070
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.
We only share your request with radon professionals for this job. We do not sell your details to anyone else. Radon by ZIP may be paid by professionals for leads or featured placement.
Nearby ZIP codes in Montgomery County
Pennsylvania radon help
PA Dept. of Environmental Protection, Bureau of Radiation Protection (717-783-3594) can help with test kits, local data and credentialed professionals: www.dep.pa.gov/Business/RadiationProtection/RadonDivision/Pages/Radon-in-the-home.aspx.
Frequently asked questions
What is the radon zone for ZIP code 18070?
ZIP 18070 spans 2 counties. The highest-potential zone among them is Zone 1 (highest potential). Montgomery County: Zone 1 (60.7% of the ZIP's land); Berks County: Zone 1 (39.3% of the ZIP's land).
Should I test for radon in 18070?
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 18070?
This page lists 34 professionals for the counties that 18070 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
Free. We email you the download link, plus an occasional plain-English guide. Unsubscribe any time. We never sell your email. Privacy