Listed for: Testing
Verified:Pennsylvania state license
Call A Harmony Home Inspection, LLC at (412) 657-2191No website listed
ProfessionalsBusiness profile
#1 Radon Tester, LLC
Derry, Pennsylvania. Laboratory
1 West Virginia state license verified against the West Virginia Office of Environmental Health Services, Radiation, Toxics and Indoor Air Division list, last checked October 4, 2026.
Credentials
Licenses and certifications
1 credential is on file for this business, exactly as the issuer's list printed it.
These are West Virginia licenses, and the business address is in Pennsylvania.
Radon411 has no Pennsylvania record for this business. Before hiring it for a home in Pennsylvania, check what Pennsylvania asks for. What Pennsylvania requires
West Virginia state license (1)
Issued by the West Virginia Office of Environmental Health Services, Radiation, Toxics and Indoor Air Division, 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 |
|---|---|---|---|---|---|
| Laboratory license | No. RL000217 | West Virginia Radon Lab | Expires October 31, 2026 | Verified October 4, 2026 | Verify RL000217 with the West Virginia Office of Environmental Health Services, Radiation, Toxics and Indoor Air Division (opens in a new tab) |
Licensing in Pennsylvania
Pennsylvania's radon program says the state licenses or certifies radon professionals.
The Radon Certification Act requires DEP to establish by regulation, a certification program for persons conducting radon gas and radon progeny testing, laboratory analysis and mitigation...
Radon Division
Department of Environmental Protection
Its page covers free or discounted test kits and who may test and fix radon in the state.
Phone 800-237-2366
Visit the program's page (opens in a new tab)Read October 3, 2026
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