Saint Thomas, PA Radon Mitigation and Testing

Q: What EPA Radon Zone is Saint Thomas in?

Saint Thomas is in Franklin County, EPA Zone 1.

Q: How much does radon mitigation cost in Saint Thomas?

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

Franklin County

EPA Zone 1

Located in Franklin County within the Chambersburg Metro area, Saint Thomas sits in Pennsylvania's south-central region where limestone bedrock creates elevated radon potential. Testing data for this 17252 zip code community remains limited, making professional radon testing essential for homeowners. Given the area's geological conditions and EPA Zone 1 classification, residents should prioritize radon assessment to ensure safe indoor air quality.

Saint Thomas, PA Radon Mitigation

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

Saint Thomas, PA Radon Testing

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

Saint Thomas Radon Facts

Key details about the radon risk profile for Saint Thomas and the 17252 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Franklin County, PA

Zip Code

17252

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Saint Thomas and the 17252 zip code are located in Franklin 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 Saint Thomas, PA

What EPA Radon Zone is Saint Thomas in?

Saint Thomas and the 17252 zip code are in Franklin 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 Saint Thomas?

Radon mitigation in Saint Thomas 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 Saint Thomas?

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