Westerville, OH Radon Levels

Q: What is the average radon level in Westerville, OH?

Based on 2 user-submitted tests, the average radon level is 14.00 pCi/L.

Q: What EPA Radon Zone is Westerville in?

Westerville is in Franklin County, EPA Zone 1.

Q: How much does radon mitigation cost in Westerville?

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

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

Westerville, OH Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Franklin County, OH

Zip Code 43081

Avg. User Level 14.00 pCi/L

User Tests 2

Spanning both Delaware and Franklin Counties in the Columbus Metro area, Westerville sits on glacial till over limestone and shale bedrock formations. Testing data reveals an alarming average radon level of 14.0 pCi/L, more than three times the EPA's action threshold, making immediate radon mitigation essential for homes in the 43081 and 43082 zip codes.

14.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Westerville, OH. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Westerville, OH Radon Mitigation

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Westerville, OH Radon Levels

User-submitted radon test readings from homes in the Westerville area.

Radon Level	City	Home Age	Foundation
8 pCi/L	Westerville, OH	0-20 Years	Partial Basement
20 pCi/L	Westerville, OH	21-50 Years	Partial Basement

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Radon FAQ for Westerville, OH

What is the average radon level in Westerville, OH?

Based on 2 user-submitted tests, the average radon level in Westerville is 14.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Westerville in?

Westerville and the 43081 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 Westerville?

Radon mitigation in Westerville 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 Westerville?

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.

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

Westerville, OH Radon Levels

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

Westerville, OH Radon Facts

Westerville, OH Radon Mitigation

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Westerville, OH Radon Levels

Radon FAQ for Westerville, OH

Most Active Radon Markets in Ohio

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