A1 House Prep, LLC
Harleysville, PA
Listed for: Testing
Verified:Pennsylvania state license
No phone or website on the list. Licenses on the profile.
ProfessionalsBusiness profile
Musselman Home Inspection LLC
Harleysville, Pennsylvania. Testing
5 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
5 credentials are on file for this business, each exactly as the issuer's list printed it.
Pennsylvania state licenses (5)
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.
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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