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

§ 4.1 — Washington County, PA

Certified radon testing in Washington County, PA

10 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. Clifford, Tyler-heritage Home Inspe

    current PA DEP № 9076

    testing

    (724) 809-3195August 29, 2026cite ↗

  2. Heritage Home Inspectors

    current PA DEP № 3569

    testing

    (724) 809-3195August 29, 2026cite ↗

  3. Jaworski, Mark

    current PA DEP № 2935

    testing

    (412) 583-7962August 29, 2026cite ↗

  4. Kail, William-home Radon Pros

    current PA DEP № 3238

    mitigation, testing

    (412) 584-0799August 29, 2026cite ↗

  5. Klein Jr., Robert Scott

    current PA DEP № 2880

    testing

    (724) 413-5522August 29, 2026cite ↗

  6. Lydic, Joseph

    current PA DEP № 3397

    testing

    (412) 912-8686August 29, 2026cite ↗

  7. Morris, Stephen

    Heritage Home Ins

    current PA DEP № 3335

    testing

    (888) 308-4018August 29, 2026cite ↗

  8. Morris,evan-heritage Home Inspector

    current PA DEP № 9131

    testing

    (724) 809-3195August 29, 2026cite ↗

  9. Ruggieri, Matthew

    current PA DEP № 3597

    testing

    (412) 292-0293August 29, 2026cite ↗

  10. Skantz, Tommy

    current PA DEP № 3701

    testing

    (412) 292-0293August 29, 2026cite ↗
Fig. 4 — Washington 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.