§ 4.1 — Cheyenne, WY

Certified radon testing in Cheyenne, WY

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

Last verified August 29, 2026. Methodology NRPP.

Certified radon testingCertified radon mitigation

  1. David Rayl

    Sugarloaf Services, Llc

    current NRPP 110683

    mitigation, testing

    (307) 316-2502August 29, 2026cite ↗
  2. Stephen Fotiades

    Big Horn Radon, Llc

    current NRPP 108751

    testing

    (307) 287-3522August 29, 2026cite ↗
Fig. 4Cheyenne, WY, 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 Wyoming

Wyoming pages here use current NRPP or NRSB certifications. City pages use the city printed on that record, not a ZIP-radius search. A national certification is not a Wyoming license. Some states require a separate state credential to work legally. Read the methodology. Credential status can change.