Avondale, PA Radon Mitigation and Testing

Q: What EPA Radon Zone is Avondale in?

Avondale is in Chester County, EPA Zone 1.

Q: How much does radon mitigation cost in Avondale?

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

Chester County

EPA Zone 1

Found in Chester County within the Philadelphia Metro region, Avondale sits on crystalline bedrock and residual soils that characterize southeastern Pennsylvania's Piedmont geology. Limited testing data for zip code 19311 emphasizes the need for individual radon assessment in this historic area. The community's mix of older stone construction and newer developments requires tailored approaches to radon testing and potential mitigation.

Avondale, PA Radon Mitigation

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

Avondale, PA Radon Testing

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

Avondale Radon Facts

Key details about the radon risk profile for Avondale and the 19311 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Chester County, PA

Zip Code

19311

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avondale and the 19311 zip code are located in Chester 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 Avondale, PA

What EPA Radon Zone is Avondale in?

Avondale and the 19311 zip code are in Chester 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 Avondale?

Radon mitigation in Avondale 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 Avondale?

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