Lansdale, PA Radon Levels
Check local Lansdale radon levels and find certified testing and mitigation professionals to keep your home safe
Lansdale, PA Radon Facts
Situated in Montgomery County within the Philadelphia Metro area, Lansdale recorded an average radon level of 3.0 pCi/L based on available testing data. This reading falls within the EPA's recommended range, though residents should still consider regular testing given Pennsylvania's generally elevated radon potential. The area's Triassic shale and sandstone geology can produce variable radon levels across different neighborhoods in zip code 19446.
Based on 1 user-submitted radon test for homes in Lansdale, PA. The EPA recommends taking action at or above 4.0 pCi/L.
Lansdale, PA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Lansdale?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Montgomery County Pros
Lansdale, PA Radon Levels
User-submitted radon test readings from homes in the Lansdale area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 3 pCi/L | Lansdale, PA | 21-50 Years | Full Basement |
Have a radon test result for Lansdale? Submit your reading to help other homeowners.
Radon Readings Near Lansdale, PA
Compare radon levels in Lansdale with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| North Wales | 2.5 mi | 7.00 pCi/L | 1 |
| Hatfield | 2.8 mi | 6.00 pCi/L | 1 |
| Ambler | 5.8 mi | 4.00 pCi/L | 1 |
| Sellersville | 8.7 mi | 6.00 pCi/L | 1 |
| Horsham | 8.7 mi | 20.00 pCi/L | 1 |
| King Of Prussia | 10.7 mi | 7.00 pCi/L | 1 |
| Doylestown | 11.0 mi | 11.33 pCi/L | 3 |
| Warminster | 11.0 mi | 11.00 pCi/L | 3 |
Montgomery County Radon Profile
Because of its underlying geology, Montgomery County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 16 cities in Montgomery County average 8.41 pCi/L across 17 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Montgomery County home regardless of zone or a neighbor's results.