Listed for: Testing
Verified:Ohio state license
Call 1st Inspection Services at (937) 684-9544No website listed
ProfessionalsBusiness profile
Mahon Services Residential Inspection LLC
Chandlersville, Ohio. Mitigation
2 Ohio state licenses verified against the Ohio Department of Health, Radon Education and Licensing Program list, last checked October 4, 2026.
Credentials
Licenses and certifications
2 credentials are on file for this business, each exactly as the issuer's list printed it.
Ohio state licenses (2)
Issued by the Ohio Department of Health, Radon Education and Licensing Program, not by NRPP or NRSB. Radon411 last checked the list on October 4, 2026.
| License | Number | Status on the list | Expires | Verified | Check with the issuer |
|---|---|---|---|---|---|
| Mitigation license | No. RC444 | Ohio licensed radon mitigation contractor | Expires March 17, 2027 | Verified October 4, 2026 | Verify RC444 with the Ohio Department of Health, Radon Education and Licensing Program (opens in a new tab) |
| Mitigation license | No. RS712 | Ohio licensed radon mitigation specialist | Expires March 16, 2027 | Verified October 4, 2026 | Verify RS712 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.
This program licenses companies and persons directly involved with the radon testing and mitigation industry.
Radon Education and Licensing Program
Ohio Department of Health
Its page covers free or discounted test kits and who may test and fix radon in the state.
Phone 614-728-0272 · Email indoor.radon@odh.ohio.gov
Visit the program's page (opens in a new tab)Read October 3, 2026
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