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Radon professionals in Oregon

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

Updated October 2, 2026

Oregon at a glance

  • Businesses listed

    38

    13th of 20 states

    Oregon
    38
    Ohio
    478

    On Oregon's own list, or claimed there

  • Listed for testing

    36

    95% of listings

    Testing
    36
    Mitigation
    11

    A business can be listed for both

  • Share at 4+ pCi/L

    25.4%

    10.3 pts below U.S.

    Oregon
    25.4%
    U.S.
    35.7%

    23,951 tests across 34 counties, 2008 to 2017

  • Counties in EPA Zone 1

    0 of 36

    None at highest potential

    Zone 1
    0
    Zone 2
    21

    EPA's predicted potential; Zone 1 is the highest

Radon professionals listed for Oregon

38 professionals in Oregon. Showing 1 to 1224.

On this page: 7 testing and mitigation, 1 mitigation, 416 testing

Testing and mitigation 7

Mitigation 1

Testing 416

Show 12 more on this page

By city

The 12 of 23 Oregon cities with the most listings. Search for any other, or open the full list.

View all 23 cities in Oregon
Every radon business listed in Oregon, A to Z (38)

Short answer

Radon professionals in Oregon, in brief

Radon411 lists 38 radon businesses for Oregon: 36 listed for radon measurement (testing), 11 for mitigation and 9 of them for both. Ask Oregon Radon Awareness Program what it requires before you hire.

Radon levels

Read a radon result for Oregon

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

Read a result for Oregon

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. 25.4% of Oregon's reported tests reached 4 pCi/L, 2008 to 2017.

Interpret this readingWhat a fix costs

Radon levels in Oregon, county by county

The rule

Does Oregon license radon professionals?

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

Oregon 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

Oregon's radon program

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

Oregon Radon Awareness Program

Oregon Health Authority

Its page covers free or discounted test kits.

Email Radon.program@dhsoha.state.or.us

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

Nearby

Listed professionals in states next to Oregon

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

Before you hire

How to check a credential in Oregon

  1. Oregon's own list

    Start with Oregon'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 Oregon

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

11 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 Oregon

Does Oregon require radon professionals to be licensed?

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

Oregon 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 Oregon?

Radon411 lists 11 businesses for mitigation in Oregon, 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 OregonHow to choose a mitigation contractor

Who tests for radon in Oregon?

Radon411 lists 36 businesses for radon measurement in Oregon.

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 OregonWhat a professional radon test involves

Does Oregon offer free or discounted radon test kits?

Oregon Radon Awareness Program's page, checked on November 3, 2026, says:

Oregon Radon Awareness Program provides a FREE short-term radon test kit to those living in areas of Oregon where little radon testing has been done.

Free and discounted test kits by state

Is every business on this page licensed in Oregon?

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

Before you hire, check the business against Oregon'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 Oregon? Get Featured.

Next steps

Where to go next