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

§ 4.1 — Naperville, IL

Certified radon testing in Naperville, IL

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

Last verified August 29, 2026. Methodology IL IEMA.

Certified radon testingCertified radon mitigation

  1. Afshari, Farhad

    Reliable Property Inspection Llc

    current IL IEMA № RNI2005205

    testing

    630-464-5500August 29, 2026cite ↗

  2. Bauman, Evan

    Castle Home Inspection

    current IL IEMA № RNIT2013206

    testing

    630-462-1050August 29, 2026cite ↗

  3. Bleier, Mitchel

    White Glove Building Inspections

    current IL IEMA № RNIT20242486

    testing

    630-495-4555August 29, 2026cite ↗

  4. Chen, Ying-huei

    Divinity Probe Home Inspections

    current IL IEMA № RNI2013227

    testing

    630-544-8147August 29, 2026cite ↗

  5. Dorado, Veronica

    Healthy Air Radon Testing

    current IL IEMA № RNIT2018233

    testing

    630-601-3130August 29, 2026cite ↗

  6. Fisher, Bruce

    White Glove Building Inspections

    current IL IEMA № RNI91155

    testing

    630-495-4555August 29, 2026cite ↗

  7. Fisher, Carol

    White Glove Building Inspections

    current IL IEMA № RNIT2009212

    testing

    630-495-4555August 29, 2026cite ↗

  8. Fisher, Robert

    White Glove Building Inspections

    current IL IEMA № RNIT2010209

    testing

    630-495-4555August 29, 2026cite ↗

  9. Flynn, Roy

    White Glove Building Inspections

    current IL IEMA № RNIT2021213

    testing

    630-495-4555August 29, 2026cite ↗

  10. Giese, Thomas

    Castle Home Inspection

    current IL IEMA № RNIT2021206

    testing

    630-462-1050August 29, 2026cite ↗

  11. Hoddy, Paul

    White Glove Building Inspections

    current IL IEMA № RNIT2018203

    testing

    630-495-4555August 29, 2026cite ↗

  12. Holzer, Dan

    Castle Home Inspection

    current IL IEMA № RNI2014205

    testing

    630-462-1050August 29, 2026cite ↗

  13. Liming, Nicholas

    Weaver Consultants Group

    current IL IEMA № RNI20232312

    testing

    630-717-4848August 29, 2026cite ↗

  14. Morar, Jared

    Spot On Home Inspections Inc

    current IL IEMA № RNI20242394

    testing

    630-542-0273August 29, 2026cite ↗

  15. Muckler, William

    Amerispec Home Inspection

    current IL IEMA № RNI2005211

    testing

    630-554-5900August 29, 2026cite ↗

  16. Muckler, William

    Amerispec Inspection Services

    current IL IEMA № RNI20253049

    testing

    630-554-5900August 29, 2026cite ↗

  17. Novello, Nicholas

    Castle Home Inspection

    current IL IEMA № RNIT20263355

    testing

    630-462-1050August 29, 2026cite ↗

  18. Rusinak, Jeffery

    Castle Home Inspection

    current IL IEMA № RNIT2018232

    testing

    630-462-1050August 29, 2026cite ↗

  19. Schriefer, Brian

    White Glove Building Inspections

    current IL IEMA № RNIT20252983

    testing

    630-495-4555August 29, 2026cite ↗

  20. Schroeder, Michael

    White Glove Building Inspections

    current IL IEMA № RNIT20263391

    testing

    630-495-4555August 29, 2026cite ↗

  21. Sladek, Daniel

    Perfection Home Inspection

    current IL IEMA № RNI2002215

    testing

    630-904-2263August 29, 2026cite ↗

  22. Teliatynskyj, Nazary

    Castle Home Inspection

    current IL IEMA № RNIT20252872

    testing

    630-462-1050August 29, 2026cite ↗

  23. Woods, Raymone

    Castle Home Inspection

    current IL IEMA № RNIT20263347

    testing

    630-462-1050August 29, 2026cite ↗
Fig. 4 — Naperville, IL, approximate. Pin is the city 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 Illinois

Illinois IEMA licenses radon measurement and mitigation professionals and technicians. The people below appear on the active licensee listing we imported. Read the methodology. Credential status can change.