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

§ 4.1 — Sioux City, IA

Certified radon mitigation in Sioux City, IA

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

Last verified August 29, 2026. Methodology IA HHS.

Certified radon testingCertified radon mitigation

  1. Hagaman, Todd F.

    Radon Mitigators, Inc.

    current IA HHS № RNMIT09052

    mitigation

    (712) 252-1662August 29, 2026cite ↗

  2. Poss, Erik

    Certified Radon Mitigation

    current IA HHS № RNMIT09067

    mitigation

    (712) 577-3172August 29, 2026cite ↗
Fig. 4 — Sioux City, IA, 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 Iowa

Iowa HHS certifies radon measurement specialists and credentials mitigation specialists. The people below appear on the official certified/credentialed specialist PDFs we imported. Read the methodology. Credential status can change.