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

§ 4.1 — Lake Frederick, VA

Certified radon testing in Lake Frederick, VA

1 current listing from the official file. Verify the credential number before you hire.

Last verified August 29, 2026. Methodology NRPP. NRSB.

Certified radon testingCertified radon mitigation

  1. Michael B. Mennemeyer

    Win Home Inspection - Winchester

    current NRSB № RMS-26MS056

    testing

    540-252-5743August 29, 2026cite ↗

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 Virginia

Virginia 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 Virginia license. Some states require a separate state credential to work legally. Read the methodology. Credential status can change.