Certified radon testers & mitigatorsPennsylvania — testing — verified 29 Aug 2026

§ 4.1 — Fayette County, PA

Certified radon testing in Fayette County, PA

5 current listings from the official file. Verify the credential number before you hire.

Last verified August 29, 2026. Methodology PA DEP.

Certified radon testingCertified radon mitigation

  1. Domonkos, Richard Jr.

    current PA DEP № 9086

    testing

    (724) 570-6196August 29, 2026cite ↗

  2. Dowling, David

    current PA DEP № 3296

    testing

    (724) 208-4108August 29, 2026cite ↗

  3. Jobes-domonkos, Tammy

    current PA DEP № 3679

    testing

    (724) 570-6196August 29, 2026cite ↗

  4. Jones, Dan-alpha Detect & Control

    current PA DEP № 1703

    testing

    (724) 628-6838August 29, 2026cite ↗

  5. Shadyside Home Inspections, Llc

    current PA DEP № 3680

    testing

    (724) 570-6196August 29, 2026cite ↗
Fig. 4 — Fayette County, PA, approximate. Pin is the county on the official file, not a street address.

Appendix A — Before you hire

  1. Who holds the credential, and can they show the same number that appears on this page?
  2. What test method or mitigation system will they use for this building?
  3. How will they document results or the finished system?

§ 4.3

Nearby places in Pennsylvania

Pennsylvania DEP certifies individuals and firms that test or mitigate radon. The people below appear as currently certified on the DEP Radon Services Directory we imported. Read the methodology. Credential status can change.