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Martinsville, OH Radon Levels

Check local Martinsville radon levels and find certified testing and mitigation professionals to keep your home safe


Martinsville, OH Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Clinton County, OH
Zip Code 45146

Positioned in Clinton County in southwestern Ohio, Martinsville sits over glacial till deposits that can facilitate radon migration from underlying bedrock. Current testing data for the 45146 zip code area is limited, highlighting the importance of individual home testing. Rural properties with older foundations and basements may be particularly susceptible to radon entry through foundation cracks and gaps.

Martinsville, OH Radon Mitigation

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

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Radon FAQ for Martinsville, OH

What EPA Radon Zone is Martinsville in?
Martinsville and the 45146 zip code are in Clinton 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 Martinsville?
Radon mitigation in Martinsville 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 Martinsville?
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 in Ohio with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
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