Skip to content
RADON411

Radon professionals in North Dakota

Who tests and fixes radon in North Dakota, what North Dakota's own program says about licensing, and how to check a credential before you hire.

Updated October 2, 2026

Radon professionals listed for North Dakota

39 professionals in North Dakota. Showing 1 to 1224.

On this page: 10 testing and mitigation, 1 mitigation, 113 testing

Testing and mitigation 10

Mitigation 1

Testing 113

Show 12 more on this page

Located in North Dakota, licensed by another state

These businesses have an address in North Dakota, and another state's registry lists them. That does not mean North Dakota licenses them: check with North Dakota's radon program before hiring one for work here.

8 professionals located in North Dakota and listed by another state.

On this page: 5 testing and mitigation, 3 testing

Testing and mitigation 5

Testing 3

By city

5 cities in North Dakota with a listed business address.

Every radon business listed in North Dakota, A to Z (47)

Short answer

Radon professionals in North Dakota, in brief

Radon411 lists 39 radon businesses for North Dakota: 36 listed for radon measurement (testing), 17 for mitigation and 14 of them for both. Ask North Dakota Department of Environmental Quality what it requires before you hire.

Listed
39
Businesses on North Dakota's list here
Testing
36
Listed for radon measurement
Mitigation
17
Listed for mitigation
Both services
14
Listed for testing and mitigation

The rule

Does North Dakota license radon professionals?

North Dakota's radon program page, checked on October 3, 2026, does not say whether the state licenses or certifies radon professionals. Ask the program before you hire.

North Dakota is not on the list of states with radon credentialing programs that EPA's state contacts page publishes. 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.

State program

North Dakota's radon program

The state's own radon program: the place to ask who may work in the state.

North Dakota Department of Environmental Quality

Its page covers free or discounted test kits.

Phone 701-328-5166 · Email jOtto@nd.gov

Visit the program's page (opens in a new tab)Read October 3, 2026

Nearby

Listed professionals in states next to North Dakota

A business licensed in a neighboring state is licensed there, not necessarily in North Dakota. Check North Dakota's rule above before you hire one.

Before you hire

How to check a credential in North Dakota

  1. North Dakota's own list

    Start with North Dakota's radon program. Licensing is done by the state, and most states can give you a list of radon service providers working there.

  2. 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.

  3. 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.

  4. 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 North Dakota

A tester

36 businesses are listed for testing here. 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.

What a professional test involves

A mitigation contractor

17 businesses are listed for mitigation here. Get more than one estimate, contact references, and ask for a written proposal and a contract before any work starts.

How to choose a contractor

Questions

Common questions about North Dakota

Does North Dakota require radon professionals to be licensed?

North Dakota's radon program page, checked on October 3, 2026, does not say whether the state licenses or certifies radon professionals. Ask the program before you hire.

North Dakota is not on the list of states with radon credentialing programs that EPA's state contacts page publishes.

How do I find a certified radon mitigator in North Dakota?

Radon411 lists 17 businesses for mitigation in North Dakota, each with the source that lists it.

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.

Mitigation listings for North DakotaHow to choose a mitigation contractor

Who tests for radon in North Dakota?

Radon411 lists 36 businesses for radon measurement in North Dakota.

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.

Testing listings for North DakotaWhat a professional radon test involves

Does North Dakota offer free or discounted radon test kits?

North Dakota Department of Environmental Quality's page, checked on October 3, 2026, says:

Notice: The DEQ is out of free radon test kits.

Free and discounted test kits by state

Is every business on this page licensed in North Dakota?

No listing here is a license. The first list holds businesses North Dakota's own registry lists, or that confirmed their own listing; each card names its source.

8 businesses with an address in North Dakota appear in a separate list because another state's registry lists them. That does not mean North Dakota licenses them.

How listings are verified. Run a radon business in North Dakota? Get Featured.

Next steps

Where to go next