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

§ 4.1 — Naperville, IL

Certified radon mitigation in Naperville, IL

5 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. Dinsick, David

    Effective Home Services, Llc

    current IL IEMA № RNM20232035

    mitigation

    815-483-8440August 29, 2026cite ↗

  2. Laibl, Brian

    Radon Reduction Systems, Inc.

    current IL IEMA № RNMT20263609

    mitigation

    630-357-9474August 29, 2026cite ↗

  3. Masa, David

    Radon Reduction Systems, Inc.

    current IL IEMA № RNM98124

    mitigation

    630-357-9474August 29, 2026cite ↗

  4. Pomatto, Daniel

    Radon Reduction Systems, Inc.

    current IL IEMA № RNMT2017208

    mitigation

    630-357-9474August 29, 2026cite ↗

  5. Willey, Scott

    Radon Xpress

    current IL IEMA № RNM2016208

    mitigation

    779-875-7226August 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.