Short answer: the median radon test in Berks County was 4.3 pCi/L (CDC, lab tests 2008 to 2017). That means at least half of the tested buildings were at or above EPA’s action level of 4 pCi/L.
How Berks County compares
Berks County’s median of 4.3 pCi/L ranks #26 of 67 Pennsylvania counties with CDC data. The middle Pennsylvania county median is 3.8 pCi/L, so Berks County is above the state’s typical county. EPA puts the county in Zone 1, the highest-potential zone on EPA’s map (predicted average indoor level above 4 pCi/L).
These numbers come from tests homeowners and buyers chose to run, not a random survey. They show local risk; they cannot predict the level in your house.
Certified radon mitigation pros based in Berks County
Each listing below appears on Pennsylvania DEP’s certified mitigation list dated September 1, 2026. We show the city on file and the DEP certification number so you can confirm it.
S. J. Watras, Inc.
Certified firm based in Boyertown, PA
PA DEP certified mitigationCertification #1057
Keith Rogers
Certified individual based in Douglassville, PA
PA DEP certified mitigationCertification #3540
Piotr Podolecki
Certified individual based in Alburtis, PA
PA DEP certified mitigationCertification #2885
Stanley J. Watras
Listed with: S. J. Watras, In (name cut short on the state list)
Certified individual based in Boyertown, PA
PA DEP certified mitigationCertification #1056
Certified firms in neighboring counties
- Safe Shelter Environmental (West Chester, Chester County)
- JK Mechanical Inc (Willow Street, Lancaster County)
- RJH Radon Mitigation Inc (Akron, Lancaster County)
- M Webster Construction Inc (Lebanon, Lebanon County)
- Integra Environmental LLC (Allentown, Lehigh County)
- SWAT of PA (Allentown, Lehigh County)
- Accurate Radon Control Inc (Green Lane, Montgomery County)
- Airotox (Lansdale, Montgomery County)
- Radon Technology & Enviromental Inc (Royersford, Montgomery County)
- Radon-Rid LLC (Phoenixville, Montgomery County)
Radon in counties next to Berks
| County | Median pCi/L | EPA zone |
|---|---|---|
| Chester, PA | 2.2 | Zone 1 (high) |
| Lancaster, PA | 4.8 | Zone 1 (high) |
| Lebanon, PA | 7.5 | Zone 1 (high) |
| Lehigh, PA | 3.9 | Zone 1 (high) |
| Montgomery, PA | 2.2 | Zone 1 (high) |
| Schuylkill, PA | 5.0 | Zone 1 (high) |
What to do in Berks County
- Test your home. EPA recommends testing every home below the third floor, whatever the county average.
- Fix it at 4 pCi/L or higher. EPA also suggests considering a fix between 2 and 4 pCi/L.
- Use a certified pro. In Pennsylvania, radon mitigation for pay requires DEP certification. Check the number against the state list before you sign.
- Retest after the system is installed.
Sources
- County median radon levels and test counts: CDC Environmental Public Health Tracking Network, radon tests from labs, 10-year period 2008 to 2017 (ephtracking.cdc.gov).
- Radon zones: U.S. EPA Map of Radon Zones (epa.gov/radon).
- Certified mitigation firms and individuals: Pennsylvania DEP list of certified radon mitigation firms dated September 1, 2026 (PDF), checked October 24, 2026.
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