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Radon professionals in Rhode Island

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

Updated October 2, 2026

Rhode Island at a glance

  • Businesses listed

    36

    14th of 20 states

    RI
    36
    Ohio
    478

    On Rhode Island's own list, or claimed there

  • Listed for testing

    32

    89% of listings

    Testing
    32
    Mitigation
    6

    A business can be listed for both

  • State license on file

    36

    100% of listings

    State license
    36
    NRPP
    0

    As each issuer's own record shows it

  • Share at 4+ pCi/L

    23.8%

    11.9 pts below U.S.

    RI
    23.8%
    U.S.
    35.7%

    37,874 tests across 5 counties, 2008 to 2017

  • Counties in EPA Zone 1

    2 of 5

    Some at highest potential

    Zone 1
    2
    Zone 2
    2

    EPA's predicted potential; Zone 1 is the highest

Radon professionals listed for Rhode Island

36 professionals in Rhode Island. Showing 1 to 1224.

On this page: 1 mitigation, 1123 testing

Mitigation 1

Testing 1123

Show 12 more on this page
Every radon business listed in Rhode Island, A to Z (36)

Short answer

Radon professionals in Rhode Island, in brief

Radon411 lists 36 radon businesses for Rhode Island: 32 listed for radon measurement (testing), 6 for mitigation and 2 of them for both. Rhode Island's radon program says the state licenses or certifies radon professionals.

Radon levels

Read a radon result for Rhode Island

Before you call a professional: what EPA says about a test result, beside Rhode Island's own share of high tests.

Read a result for Rhode Island

Starts at EPA's action level

4.0pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 4.0 pCi/L

At or above 4 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. 23.8% of Rhode Island's reported tests reached 4 pCi/L, 2008 to 2017.

Interpret this readingWhat a fix costs

Radon levels in Rhode Island, county by county

The rule

Does Rhode Island license radon professionals?

Yes. Rhode Island's radon program page, checked on November 3, 2026, says:

This page lists Radon Testing businesses that are licensed by the Rhode Island Department of Health.
Radon Control Program, read November 3, 2026

EPA's state contacts page lists Rhode Island 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.

Listings for Rhode Island come from the list of licensed radon professionals that the Rhode Island Department of Health publishes, last read on November 3, 2026, and from businesses that confirm their own details through Radon411's claim process.

State program

Rhode Island's radon program

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

Radon Control Program

Rhode Island Department of Health

Its page covers who may test and fix radon in the state.

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

Nearby

Listed professionals in states next to Rhode Island

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

Before you hire

How to check a credential in Rhode Island

  1. Rhode Island's own list

    Start with the Rhode Island Department of Health. Licensing is done by the state, so its list or search says who may legally work in Rhode Island.

  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 Rhode Island

A tester

32 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

6 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 Rhode Island

Does Rhode Island require radon professionals to be licensed?

Yes. Rhode Island's radon program page, checked on November 3, 2026, says.

EPA's state contacts page lists Rhode Island among the states with radon credentialing programs.

This page lists Radon Testing businesses that are licensed by the Rhode Island Department of Health.
How do I find a certified radon mitigator in Rhode Island?

Radon411 lists 6 businesses for mitigation in Rhode Island, 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 Rhode IslandHow to choose a mitigation contractor

Who tests for radon in Rhode Island?

Radon411 lists 32 businesses for radon measurement in Rhode Island.

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 Rhode IslandWhat a professional radon test involves

How current are the Rhode Island listings?

Listings for Rhode Island come from the list of licensed radon professionals that the Rhode Island Department of Health publishes, last read on November 3, 2026, and from businesses that confirm their own details through Radon411's claim process.

Is every business on this page licensed in Rhode Island?

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

Before you hire, check the business against Rhode Island's own list or the issuing body's search, because a listing on Radon411 is not a credential.

How listings are verified. Run a radon business in Rhode Island? Get Featured.

Next steps

Where to go next