Gary Olinchak
(610) 909-4356✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Radon in ZIP code 19342
Last updated
ZIP 19342 crosses 2 county lines. Most of its land (96.7%) is in Delaware County, Pennsylvania. EPA’s radon zone for this area: Zone 1, highest potential.
Zone 1 Delaware County, PA · 96.7% of the ZIP’s land area
Predicted average indoor screening level above 4 pCi/L.
Zone 1 Chester County, PA · 3.3% of the ZIP’s land area
Predicted average indoor screening level above 4 pCi/L.
What this means for homes in 19342
EPA built its zone map county by county in 1993, so every address in each part of 19342 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 19342 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 19342
These professionals are listed for the counties that 19342 falls in. Featured listings are paid placements and are labelled.
Boro Environmental, Inc.
(610) 715-9034✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Dominick Peda
(610) 891-6611✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Jack Dreisbach
(610) 328-5525✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Jeffrey Hunt
(302) 467-0699✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Jon Knell
(484) 442-0424✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Michael Bednar Jr.
(610) 710-9450✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Rob Bruno
(610) 586-5640✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Stephen J. Fiorelli
(610) 583-4738✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Charles Gutridge
(610) 385-3339✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Safe Shelter Environmental
(610) 594-0350✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
Spencer Conrad
(570) 573-8159✓ Verified October 4, 2026 on the official state list dated October 1, 2026, double-checked against a second state list.
See all 30 on the Delaware County page →
Free, no obligation
Get radon quotes from certified pros in ZIP 19342
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 Delaware 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 19342?
ZIP 19342 spans 2 counties. The highest-potential zone among them is Zone 1 (highest potential). Delaware County: Zone 1 (96.7% of the ZIP's land); Chester County: Zone 1 (3.3% of the ZIP's land).
Should I test for radon in 19342?
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 19342?
This page lists 30 professionals for the counties that 19342 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