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Residential Radon Specialists

Westerville, Ohio. Mitigation

4 Ohio state licenses verified against the Ohio Department of Health, Radon Education and Licensing Program list, last checked November 3, 2026.

Credentials

Licenses and certifications

4 credentials are on file for this business, each exactly as the issuer's list printed it.

Ohio state licenses (4)

Issued by the Ohio Department of Health, Radon Education and Licensing Program, not by NRPP or NRSB. Radon411 last checked the list on November 3, 2026.

LicenseNumberStatus on the listExpiresVerifiedCheck with the issuer
Mitigation licenseNo. RC161Ohio licensed radon mitigation contractorExpires December 21, 2027Verified November 3, 2026Verify RC161 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Mitigation licenseNo. RS261Ohio licensed radon mitigation specialistExpires December 4, 2026Verified November 3, 2026Verify RS261 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Mitigation licenseNo. RS322Ohio licensed radon mitigation specialistExpires December 21, 2027Verified November 3, 2026Verify RS322 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)
Mitigation licenseNo. RS323Ohio licensed radon mitigation specialistExpires December 21, 2027Verified November 3, 2026Verify RS323 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab)

Licensing in Ohio

Ohio's radon program says the state licenses or certifies radon professionals.

Radon Education and Licensing Program, Ohio Department of Health, 614-728-0272.

What Ohio requires, in its program’s own words, and how to check a credential

Local radon figures

Radon in Westerville

Westerville lies mostly in Franklin County, where 71.9% of 16,142 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 19.6 points above Ohio pooled (52.3%), 6th of 79 Ohio counties with 30 or more tests.

Radon test figures for the counties Westerville lies in
CountyShare of WestervilleTestsAt or above 4 pCi/LMedianOhio, pooledRank in the stateEPA zone
Franklin County68.3%16,14271.9%6.8 pCi/L52.3%6 of 79Zone 1
Delaware County31.7%3,73072.2%6.4 pCi/L52.3%4 of 79Zone 1

Shares of tests people chose to run and report, by county (2008 to 2017, laboratory); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

The counties around Westerville

Around Franklin County, one of the counties Westerville lies in, the nearest Ohio counties with a CDC figure for 2008 to 2017, laboratory run from 60.2% to 81.4% of tests at or above 4 pCi/L; the closest, Madison County, is 21 miles away at 67.4%.

The nearest Ohio counties to Franklin County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Madison County21 mi54967.4%5.7 pCi/L
Pickaway County23 mi18381.4%9.5 pCi/L
Fairfield County25 mi1,17576.8%7.4 pCi/L
Licking County29 mi4,69471.2%7.0 pCi/L
Union County30 mi1,28560.2%4.8 pCi/L
Morrow County40 mi17765.0%5.7 pCi/L

Nearby

Radon professionals nearest Westerville

More radon professionals in WestervilleMore radon professionals in Ohio

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