Listed for: TestingLaboratory
Verified:Ohio state license+2 more: Pennsylvania state license, West Virginia state license
ProfessionalsBusiness profile
Keystone Building Inspections
Pittsburgh, Pennsylvania. Testing
3 Pennsylvania state licenses verified against the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection list, last checked October 4, 2026.
Credentials
Licenses and certifications
3 credentials are on file for this business, each exactly as the issuer's list printed it.
Pennsylvania state licenses (3)
Issued by the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection, not by NRPP or NRSB. Radon411 last checked the list on October 4, 2026. No expiry date is on the record.
| License | Number | Status on the list | Verified | Check with the issuer |
|---|---|---|---|---|
| Testing license | No. 2464 | DEP certified radon testing firm | Verified October 4, 2026 | Verify 2464 with the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (opens in a new tab) |
| Testing license | No. 2643 | DEP certified radon testing firm | Verified October 4, 2026 | Verify 2643 with the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (opens in a new tab) |
| Testing license | No. 8949 | DEP certified radon testing firm | Verified October 4, 2026 | Verify 8949 with the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection (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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