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

§ 4.1 — Portland, ME

Certified radon testing in Portland, ME

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

Last verified August 29, 2026. Methodology ME DHHS.

Certified radon testingCertified radon mitigation

  1. Confidence Building Inspections Llc

    Confidence Building Inspections Llc

    current ME DHHS № SMC452

    testing

    August 29, 2026cite ↗

  2. First Light Inspections Llc

    First Light Inspections Llc

    current ME DHHS № SPC448

    testing

    August 29, 2026cite ↗

  3. Maine Home Inspection Co.

    Maine Home Inspection Co.

    current ME DHHS № SMC140

    testing

    August 29, 2026cite ↗

  4. Safe Radon Solutions, Llc

    Safe Radon Solutions, Llc

    current ME DHHS № SMC392

    mitigation, testing

    August 29, 2026cite ↗
Fig. 4 — Portland, ME, 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 Maine

Maine DHHS registers radon service-provider companies. The firms below appear as Active on the official ALMS company search we imported (Test air and Portable lab as testing; Mitigate air as mitigation). Stationary laboratories and supervised employees are not listed here. Read the methodology. Credential status can change.