Lansdale, PA Radon Mitigation and Testing

Q: What is the average radon level in Lansdale, PA?

Based on 1 user-submitted tests, the average radon level is 3.00 pCi/L.

Q: What EPA Radon Zone is Lansdale in?

Lansdale is in Montgomery County, EPA Zone 1.

Q: How much does radon mitigation cost in Lansdale?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 3.00 pCi/L

Montgomery County

EPA Zone 1

1 user test

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.

3.00

pCi/L average

Below EPA Action Level

Based on 1 user-submitted radon test for homes in Lansdale, PA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Lansdale, PA Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Lansdale, PA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Lansdale, Pennsylvania Radon Levels

User-submitted radon test readings from homes in the Lansdale area.

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Lansdale, PA	21-50 Years	Full Basement	Jul 2022

Have a radon test result for Lansdale? Submit your reading to help other homeowners.

Lansdale Radon Facts

Key details about the radon risk profile for Lansdale and the 19446 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Montgomery County, PA

Zip Code

19446

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

3.00 pCi/L

User Tests Submitted

Lansdale and the 19446 zip code are located in Montgomery County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Lansdale, PA

What is the average radon level in Lansdale, PA?

Based on 1 user-submitted test, the average radon level in Lansdale is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is Lansdale in?

Lansdale and the 19446 zip code are in Montgomery County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Lansdale?

Radon mitigation in Lansdale typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Lansdale?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Pennsylvania

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
State College	10.00 pCi/L	14
Chambersburg	10.14 pCi/L	7
Easton	12.33 pCi/L	6
Butler	12.40 pCi/L	5
Dingmans Ferry	5.80 pCi/L	5
Hanover	14.00 pCi/L	4
Mechanicsburg	13.75 pCi/L	4
Greenville	10.75 pCi/L	4
Pittsburgh	9.25 pCi/L	4
Albrightsville	9.00 pCi/L	4
Philadelphia	8.00 pCi/L	4
Lackawaxen	15.33 pCi/L	3
York	11.67 pCi/L	3
Elizabethtown	9.67 pCi/L	3
Johnstown	7.33 pCi/L	3
West Chester	6.67 pCi/L	3
Danville	5.67 pCi/L	3
Springfield	5.67 pCi/L	3
East Stroudsburg	5.00 pCi/L	3
Langhorne	4.67 pCi/L	3