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Williamsport, OH Radon Levels

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


Williamsport, OH Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Pickaway County, OH
Zip Code 43164

Situated in Pickaway County within the Columbus Metro region, Williamsport sits on Ohio's glacial plains where till deposits can facilitate radon movement. Testing data for the 43164 area remains limited, emphasizing the need for individual radon assessments. The region's relatively flat terrain and agricultural history often feature homes with basements that can concentrate radon gas.

Williamsport, 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 Williamsport, OH

What EPA Radon Zone is Williamsport in?
Williamsport and the 43164 zip code are in Pickaway 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 Williamsport?
Radon mitigation in Williamsport 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 Williamsport?
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