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

§ 4.1 — Butler County, PA

Certified radon testing in Butler County, PA

17 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. Barto, Richard

    current PA DEP № 2477

    testing

    (724) 504-2746August 29, 2026cite ↗

  2. Cilik, Ivan

    Housemaster Home Insp

    current PA DEP № 2873

    testing

    (724) 772-5593August 29, 2026cite ↗

  3. Housemaster Home Inspections

    current PA DEP № 1230

    testing

    (724) 772-5593August 29, 2026cite ↗

  4. Kampi, Brian

    current PA DEP № 2618

    testing

    (412) 367-0707August 29, 2026cite ↗

  5. Marlier, Steven

    Housemaster Home

    current PA DEP № 9096

    testing

    (724) 772-5593August 29, 2026cite ↗

  6. Onega Llc

    current PA DEP № 2522

    testing

    (724) 452-5025August 29, 2026cite ↗

  7. Onega, Richard

    Onega Llc

    current PA DEP № 2386

    testing

    (724) 452-5025August 29, 2026cite ↗

  8. Patterson, Matthew

    Pillar To Post

    current PA DEP № 9099

    testing

    (724) 816-7695August 29, 2026cite ↗

  9. Peffer, Leonard

    Onega Llc

    current PA DEP № 8897

    testing

    (724) 452-5025August 29, 2026cite ↗

  10. Petruska, Greg

    current PA DEP № 2845

    testing

    (724) 409-2019August 29, 2026cite ↗

  11. Pillar To Post - Butler Co

    current PA DEP № 3144

    testing

    (724) 816-7695August 29, 2026cite ↗

  12. Polczynski, Scott

    Housemaster Hom

    current PA DEP № 8838

    testing

    (724) 772-5593August 29, 2026cite ↗

  13. Richardson, Jr., George

    Housemast

    current PA DEP № 8664

    testing

    (724) 772-5593August 29, 2026cite ↗

  14. Ritenour, Shelbi

    current PA DEP № 3562

    testing

    (724) 504-3804August 29, 2026cite ↗

  15. Staniland, William

    current PA DEP № 2734

    testing

    (724) 742-2776August 29, 2026cite ↗

  16. Supik, Joshua

    current PA DEP № 3320

    testing

    (724) 994-0333August 29, 2026cite ↗

  17. West, Aaron

    current PA DEP № 3709

    testing

    (412) 204-6149August 29, 2026cite ↗
Fig. 4 — Butler 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.