Thornville, OH Radon Mitigation and Testing

Q: What EPA Radon Zone is Thornville in?

Thornville is in Perry County, EPA Zone 1.

Q: How much does radon mitigation cost in Thornville?

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

Perry County

EPA Zone 1

Nestled in Perry County southeast of Columbus, Thornville sits within Ohio's Appalachian foothills over sandstone and shale bedrock that can produce variable radon conditions. The community features a mix of older homes and newer rural construction, many with partial or full basements typical of southeastern Ohio building practices. Limited radon testing data is currently available for this area, so homeowners should conduct professional testing to determine individual property risk levels.

Thornville, OH Radon Mitigation

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

Thornville, OH Radon Testing

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

Thornville Radon Facts

Key details about the radon risk profile for Thornville and the 43076 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Perry County, OH

Zip Code

43076

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Thornville and the 43076 zip code are located in Perry 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 Thornville, OH

What EPA Radon Zone is Thornville in?

Thornville and the 43076 zip code are in Perry 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 Thornville?

Radon mitigation in Thornville 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 Thornville?

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 Ohio

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

City	Avg User Radon Level	Submissions
Marietta	8.00 pCi/L	5
Cincinnati	5.20 pCi/L	5
Hilliard	11.75 pCi/L	4
Wilmington	5.25 pCi/L	4
Newark	15.00 pCi/L	3
Athens	11.33 pCi/L	3
Findlay	10.33 pCi/L	3
Perrysburg	9.67 pCi/L	3
Powell	8.33 pCi/L	3
Columbus	6.00 pCi/L	3
Chagrin Falls	4.67 pCi/L	3
Hamilton	10.00 pCi/L	2
Chardon	5.50 pCi/L	2
Strongsville	4.50 pCi/L	2
Maineville	10.00 pCi/L	1
Lancaster	9.00 pCi/L	1
West Chester	9.00 pCi/L	1
Amherst	6.00 pCi/L	1
Chillicothe	6.00 pCi/L	1
Lima	5.00 pCi/L	1