Chapter 04 — The Maine file

Certified radon testers & mitigators in Maine

Current ME DHHS credentials from the official roster. We group people by the city on that file. We do not invent neighborhoods. Source: ME DHHS.

Last verified August 29, 2026. Methodology

121current listings
101testing
33mitigation

§ 4.1

Cities with listings

A city appears only when at least one current listing serves it.