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

§ 4.1 — Philadelphia County, PA

Certified radon testing in Philadelphia County, PA

16 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. Augustine, Branden-eagle Inspection

    current PA DEP № 9138

    testing

    (267) 538-2292August 29, 2026cite ↗

  2. Baltrush, Michael

    Valueguard Usa,

    current PA DEP № 9053

    testing

    (215) 860-3150August 29, 2026cite ↗

  3. Borkowski, Patrick

    current PA DEP № 2497

    testing

    (888) 927-3944August 29, 2026cite ↗

  4. Dunn, Jr., William

    current PA DEP № 3374

    testing

    (215) 284-1737August 29, 2026cite ↗

  5. Gilger, Tyler

    Valueguard Usa, Inc

    current PA DEP № 9030

    testing

    (215) 860-3150August 29, 2026cite ↗

  6. Labar, James

    current PA DEP № 3756

    testing

    (610) 909-3649August 29, 2026cite ↗

  7. Lampe, Bruce D.

    current PA DEP № 2188

    testing

    (215) 632-4220August 29, 2026cite ↗

  8. Lerro, Joseph

    Geo Environmental

    current PA DEP № 8701

    testing

    (215) 778-7118August 29, 2026cite ↗

  9. Maralado, Matt

    Valueguard Usa Inc

    current PA DEP № 8788

    testing

    (215) 860-3150August 29, 2026cite ↗

  10. Mazzio, Michael

    current PA DEP № 3677

    testing

    (215) 280-5473August 29, 2026cite ↗

  11. Millard, Chase

    Valueguard Usa Inc

    current PA DEP № 2740

    testing

    (215) 860-3150August 29, 2026cite ↗

  12. Royer, James

    Valueguard Usa, Inc

    current PA DEP № 9031

    testing

    (215) 860-3150August 29, 2026cite ↗

  13. Serrano, Moises

    current PA DEP № 3746

    testing

    (215) 800-9528August 29, 2026cite ↗

  14. Shalaway, Cory

    Valueguard Usa Inc

    current PA DEP № 9016

    testing

    (215) 860-3150August 29, 2026cite ↗

  15. Valueguard Usa, Inc.

    current PA DEP № 1910

    testing

    (215) 860-3150August 29, 2026cite ↗

  16. Yeager, Joseph

    current PA DEP № 3503

    testing

    (215) 205-4453August 29, 2026cite ↗
Fig. 4 — Philadelphia 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.