Professionals
Radon professionals in Maine
Who tests and fixes radon in Maine, what Maine's own program says about licensing, and how to check a credential before you hire.
Updated October 2, 2026
Short answer
Radon professionals in Maine, in brief
No business that Maine itself licenses or certifies is listed on Radon411 yet. Maine's radon program says the state licenses or certifies radon professionals.
The rule
Does Maine license radon professionals?
Yes. Maine's radon program page, checked on September 25, 2026, says:
Under Maine law, only the owner or occupant of a residence or someone registered with the state to provide these services, may test for radon, install and/or advise on the installation of a radon reduction (mitigation) system.
EPA's state contacts page lists Maine among the states with radon credentialing programs. Licensing is done by the state, not by the national programs, and EPA requires states that receive radon grants to give the public a list of only those providers credentialed by the state or by NRPP or NRSB.
Radon411 reads no licensing list for Maine; Maine's radon program is the place to ask who works there.
State program
Maine's radon program
The state's own radon program: the place to ask who may work in the state.
Maine Radiation Control Program
Maine Center for Disease Control & Prevention
Its page covers who may test and fix radon in the state.
Phone 207-287-5676 · Email radon.dhhs@maine.gov
Visit the program's page (opens in a new tab)Read September 25, 2026
The directory
Radon professionals listed for Maine
No radon business is listed for Maine yet. Ask Maine Radiation Control Program for its list, and check any professional in the steps below. Run a radon business in Maine? Ask to be listed.
Before you hire
How to check a credential in Maine
Maine's own list
Start with Maine's radon program. Licensing is done by the state, and most states can give you a list of radon service providers working there.NRPP's search
The National Radon Proficiency Program's search finds its Certified Mitigation Specialists and Certified Measurement Professionals by area, by name, or by the 6-digit NRPP ID number a professional can give you.NRSB's search
The National Radon Safety Board's search finds a professional in your area, or confirms that a named professional is NRSB certified.The ID card
The programs usually issue a photo ID card showing the holder's qualifications and its expiry date. Ask to see it, and if in doubt, check with the body that issued it.
Hiring
Hiring in Maine
A tester
Ask for the credential and ID card, how the test will be guarded against interference, and when the report will come. EPA recommends an independent, qualified tester for the test after a system is installed.
A mitigation contractor
Get more than one estimate, contact references, and ask for a written proposal and a contract before any work starts.
Questions
Common questions about Maine
- Does Maine require radon professionals to be licensed?
Yes. Maine's radon program page, checked on September 25, 2026, says.
EPA's state contacts page lists Maine among the states with radon credentialing programs.
Under Maine law, only the owner or occupant of a residence or someone registered with the state to provide these services, may test for radon, install and/or advise on the installation of a radon reduction (mitigation) system.
- How do I find a certified radon mitigator in Maine?
No business is listed for mitigation in Maine on Radon411 yet.
Your state radon program can help you find qualified professionals in the state, and NRPP and NRSB, the two national proficiency programs EPA names, each publish a search of the professionals they certify.
- Who tests for radon in Maine?
No business is listed for radon measurement in Maine on Radon411 yet.
A qualified radon tester is very often a home inspector, and your state radon office can give you its approved list of radon testing companies.
- How current are the Maine listings?
Radon411 reads no licensing list for Maine; Maine's radon program is the place to ask who works there.
- Is every business on this page licensed in Maine?
No listing here is a license. The first list holds businesses Maine's own registry lists, or that confirmed their own listing; each card names its source.
Before you hire, check the business against Maine's own list or the issuing body's search, because a listing on Radon411 is not a credential.
No business pays to be listed, labelled or placed higher here, and Radon411 sells no leads. How listings are verified. Run a radon business in Maine? Claim your listing.
Next steps