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

§ 4.1 — Northbrook, IL

Certified radon testing in Northbrook, 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. Arceri, Donald

    Real Inspection Services

    current IL IEMA № RNIT2019207

    testing

    312-724-5100August 29, 2026cite ↗

  2. Cross, Sean

    Real Inspection Services

    current IL IEMA № RNI2018226

    testing

    312-724-5100August 29, 2026cite ↗

  3. Felde, Craig

    Real Inspection Services

    current IL IEMA № RNIT2022236

    testing

    312-724-5100August 29, 2026cite ↗

  4. Hanna, Carly

    Hanna Radon Detection, Inc.

    current IL IEMA № RNI2018202

    testing

    847-791-9123August 29, 2026cite ↗

  5. Hanna, Lyndsey

    Hanna Radon Detection, Inc.

    current IL IEMA № RNI2018203

    testing

    847-791-6805August 29, 2026cite ↗
Fig. 4 — Northbrook, 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.