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§ 4.1 — Montgomery County, PA

Radon testing in Montgomery County, PA

This page lists 47 people and firms with a current radon testing credential whose official record names Montgomery County, PA. Each row shows the credential number, the issuing body, and its own verification date. The latest record check on this page was August 29, 2026; other records may have been checked earlier. Source: PA DEP. Verify the number before you hire.

Latest credential check August 29, 2026. Methodology Individual record dates may be earlier. PA DEP.

Radon testingRadon mitigation

Testing listings are people credentialed to measure radon. Mitigation listings are people credentialed to install a reduction system. Some people appear on both pages when the official file says they hold both.

  1. Achuff, Mark

    Spy Inspection Servi

    current PA DEP № 8555

    testing

    (215) 362-1234August 29, 2026cite ↗

  2. Achuff, Matthew

    Spy Inspection Se

    current PA DEP № 8668

    testing

    (215) 362-1234August 29, 2026cite ↗

  3. Armored Home Inspections, Llc

    current PA DEP № 2496

    testing

    (610) 352-2212August 29, 2026cite ↗

  4. Bancroft, Jason C.

    current PA DEP № 2719

    testing

    (484) 504-9876August 29, 2026cite ↗

  5. Burgess, Randall

    Spotlight Home I

    current PA DEP № 3382

    testing

    (215) 234-0505August 29, 2026cite ↗

  6. Clerkin, Diane

    current PA DEP № 2247

    testing

    (215) 896-1922August 29, 2026cite ↗

  7. Coppa, Joseph

    current PA DEP № 3619

    testing

    (610) 639-3866August 29, 2026cite ↗

  8. D-tech, Inc.

    current PA DEP № 0317

    testing

    (215) 233-5888August 29, 2026cite ↗

  9. D'arcy, Christopher-radon Testing S

    current PA DEP № 3566

    testing

    (215) 968-1933August 29, 2026cite ↗

  10. D'arcy, Laura

    Radon Testing Syste

    current PA DEP № 8766

    testing

    (215) 968-1933August 29, 2026cite ↗

  11. D'arcy, Michele-radon Testing Syste

    current PA DEP № 8283

    testing

    (215) 968-1933August 29, 2026cite ↗

  12. D'arcy, Thomas

    Radon Testing Syst

    current PA DEP № 8999

    testing

    (215) 968-1933August 29, 2026cite ↗

  13. Demar, David

    Accurate Radon Contr

    current PA DEP № 2112

    mitigation, testing

    (215) 541-1557August 29, 2026cite ↗

  14. Eslinger, Christopher

    current PA DEP № 3289

    testing

    (267) 902-6421August 29, 2026cite ↗

  15. Fabri, Niko

    current PA DEP № 3722

    testing

    (215) 313-7499August 29, 2026cite ↗

  16. Foglia, Michael

    current PA DEP № 3304

    testing

    (484) 451-5355August 29, 2026cite ↗

  17. Gallen, Brian

    Spy Inspection Serv

    current PA DEP № 8693

    testing

    (215) 362-1234August 29, 2026cite ↗

  18. Gentry, Timothy J.

    current PA DEP № 2217

    mitigation, testing

    (215) 672-8529August 29, 2026cite ↗

  19. Gutridge, Charles

    Gutridge Inspec

    current PA DEP № 2973

    mitigation, testing

    (610) 385-3339August 29, 2026cite ↗

  20. Hillerby, Dana

    current PA DEP № 2794

    testing

    (267) 627-2252August 29, 2026cite ↗

  21. Humeas, Joe

    Radon Testing Systems

    current PA DEP № 8745

    testing

    (215) 968-1933August 29, 2026cite ↗

  22. Johnson, Donna

    A1 House Prep, Llc

    current PA DEP № 8641

    testing

    (215) 853-8226August 29, 2026cite ↗

  23. Johnson, Robert

    current PA DEP № 2427

    testing

    (215) 853-8226August 29, 2026cite ↗

  24. Kopenhaver, Gregory

    D-tech

    current PA DEP № 1941

    testing

    (215) 233-5888August 29, 2026cite ↗

  25. Kurtz, Joshua

    current PA DEP № 3645

    testing

    (215) 292-6603August 29, 2026cite ↗

  26. Labar, John

    current PA DEP № 3178

    testing

    (610) 551-8892August 29, 2026cite ↗

  27. Lennox, Craig

    current PA DEP № 2771

    testing

    (610) 277-4953August 29, 2026cite ↗

  28. Marino, Marc A.

    Radon-rid Llc

    current PA DEP № 2585

    mitigation, testing

    (610) 222-2273August 29, 2026cite ↗

  29. McCurry, Justin

    current PA DEP № 3286

    testing

    (610) 737-7274August 29, 2026cite ↗

  30. McGuinness, Brody

    current PA DEP № 3737

    testing

    (610) 471-5958August 29, 2026cite ↗

  31. Meehan, Michael-radon Testing Syste

    current PA DEP № 8274

    testing

    (215) 968-1933August 29, 2026cite ↗

  32. Millspaugh, Gary

    Musselman Home I

    current PA DEP № 9129

    testing

    (267) 328-4663August 29, 2026cite ↗

  33. Miseyko, David

    Musselman Home Ins

    current PA DEP № 8847

    testing

    (267) 328-4663August 29, 2026cite ↗

  34. Musselman Home Inspection Llc

    current PA DEP № 3381

    testing

    (267) 328-4663August 29, 2026cite ↗

  35. Musselman, Jonathan

    Musselman Hom

    current PA DEP № 2962

    testing

    (267) 328-4663August 29, 2026cite ↗

  36. Niles, Curtis

    Armored Home Inspec

    current PA DEP № 2495

    testing

    (610) 352-2212August 29, 2026cite ↗

  37. Niles, Lori

    Armored Home Inspecti

    current PA DEP № 8542

    testing

    (610) 352-2212August 29, 2026cite ↗

  38. Niles, Manasseh

    Armored Home Inps

    current PA DEP № 9084

    testing

    (610) 352-2212August 29, 2026cite ↗

  39. Omar, Aiman

    current PA DEP № 3621

    testing

    (215) 313-7499August 29, 2026cite ↗

  40. Radon Testing Systems

    current PA DEP № 0794

    testing

    (215) 968-1933August 29, 2026cite ↗

  41. Ray, Richard

    Spy Inspections Serv

    current PA DEP № 8339

    testing

    (215) 362-1234August 29, 2026cite ↗

  42. Ricci, Harvey-spy Inspection Servic

    current PA DEP № 2042

    testing

    (215) 362-1234August 29, 2026cite ↗

  43. Speak, David

    Musselman Home Inspe

    current PA DEP № 8958

    testing

    (267) 328-4663August 29, 2026cite ↗

  44. Spotlight Home Inspection Llc

    current PA DEP № 3341

    testing

    (215) 234-0505August 29, 2026cite ↗

  45. Spy Inspection Services, Inc.

    current PA DEP № 2043

    testing

    (215) 362-1234August 29, 2026cite ↗

  46. Underwood, Kyle

    current PA DEP № 3195

    testing

    (267) 407-8808August 29, 2026cite ↗

  47. Wright, John

    Spotlight Home Inspe

    current PA DEP № 8813

    testing

    (215) 234-0505August 29, 2026cite ↗
Fig. 4 — Each pin is a current listing at the Census city or county centroid on the file, approximate. Pins that share a place are spread so you can click them. Not street addresses.

Appendix A

Questions before you hire

How do I verify a radon credential listed for Montgomery County, PA?

Open the source link on this page and match the name and credential number to PA DEP. Status can change after a record’s verification date. The latest record check on this page was August 29, 2026; check each record’s date. If the official page disagrees with this directory, trust the official page. We do not invent credential numbers.

Does EPA certify radon contractors?

The U.S. EPA does not certify radon contractors. EPA publishes guidance on finding a qualified radon service provider and points to state programs and national certifications. This directory is not affiliated with EPA. We do not display EPA-certified badges.

What does last verified mean on this page?

Last verified on an individual record is the date we checked its official source. The latest credential check on this page was August 29, 2026; other records may have earlier dates. We refresh the roster monthly. Current means the person appeared as currently credentialed on the source at that record’s verification date. Credentials can expire between refreshes, so follow the source link.

Appendix A.2

Before you hire

  1. Ask who holds the credential printed on this page, and ask them to show the same number. Some firms employ several credentialed people. The listing is the person or firm on the official file, not whoever answers the phone.
  2. Ask what test method or mitigation system they will use for this building. A credential is not a work plan. Testing and mitigation are separate services here, and a person appears on both lists only when the official file says they hold both.
  3. Ask how they will document test results or the finished mitigation system. Keep that document with the credential number you verified. This directory does not score jobs, publish reviews, or collect quotes.

The full checklist: Certified radon tester: what they do and how to hire one

§ 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.