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RadonProsCertified Directory
Aerial neighborhood view in Oregon

Radon Pros in Oregon

26 contractors

EPA zone context: Oregon includes Zone 1 and Zone 2 areas, with higher potential in several eastern and inland counties.

EW

Environmental Works, Inc.

4.9 (761 Google reviews)

Certified Professional

Licensed Provider: Sol Migliaccio

Full Service•Fairview, OR
MitigationTestingCommercial
Certified RMP/RMSFree Estimates

Environmental Works, Inc. is a contractor offering radon-related services serving Fairview, OR. Established in 2008. Services include radon testing, radon measurement, radon mitigation system installation, mitigation system design. Methods include heat recovery ventilation. Holds Certified Radon Measurement Professional and Certified Radon Mitigation Specialist certifications. Rated 4.9/5 on Google based on 761 reviews. Offers free estimates, rush/priority scheduling, financing options.

View Profile5037196715
DI

Diligence Inspections

Certified Professional

Licensed Provider: Ryan Horton

Full Service•Milwaukie, OR
MitigationTestingNew ConstructionCommercial
Certified RMPLicensed & InsuredFree Estimates

Diligence Inspections is a contractor offering radon-related services serving Milwaukie, OR. Services include radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Measurement Professional certification. Offers free estimates, real estate transaction testing, rush/priority scheduling, licensed and insured.

View Profile5033879647
3C

3R's Construction and Remodeling

4.4 (115 Google reviews)

Certified Professional

Licensed Provider: Duane West

Full Service•Salem, OR
MitigationTestingCrawlspace
Certified RMS/RMPFree Estimates

3R's Construction and Remodeling is a contractor offering radon-related services serving Salem, OR. Over 30 years of experience. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Works with basements, crawlspaces. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 4.4/5 on Google based on 115 reviews. Offers free estimates, financing options.

View Profile5033631059
JW

John's Waterproofing

5.0 (11 Google reviews)

Certified Professional

Licensed Provider: Colton L Barber

Full Service•Silverton, OR
MitigationTestingCrawlspaceVapor BarrierSump Pump
Certified RMPFree Estimates

John's Waterproofing is a contractor offering radon-related services serving Silverton, OR. Established in 1974. Services include radon testing, radon measurement. Works with basements, crawlspaces. Methods include heat recovery ventilation. Holds Certified Radon Measurement Professional certification. Rated 5.0/5 on Google based on 11 reviews. Offers free estimates, financing options.

View Profile5038735650
Data provided by Google Maps

State Info

Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.

Radon mitigation cost in OregonRadon testing cost in Oregon

Popular Cities for Radon Mitigation in Oregon

Radon mitigation in Portland, Oregon4 local contractors listedRadon mitigation in Bend, Oregon3 local contractors listedRadon mitigation in Aloha, Oregon2 local contractors listedRadon mitigation in Medford, Oregon2 local contractors listedRadon mitigation in Salem, Oregon2 local contractors listedRadon mitigation in Astoria, Oregon1 local contractors listedRadon mitigation in Beaverton, Oregon1 local contractors listedRadon mitigation in Clackamas, Oregon1 local contractors listedRadon mitigation in Eugene, Oregon1 local contractors listedRadon mitigation in Fairview, Oregon1 local contractors listedRadon mitigation in Forest Grove, Oregon1 local contractors listedRadon mitigation in Glide, Oregon1 local contractors listedRadon mitigation in Hillsboro, Oregon1 local contractors listedRadon mitigation in Lake Oswego, Oregon1 local contractors listedRadon mitigation in Milwaukie, Oregon1 local contractors listedRadon mitigation in Rainier, Oregon1 local contractors listedRadon mitigation in Sherwood, Oregon1 local contractors listedRadon mitigation in Silverton, Oregon1 local contractors listed

FAQ: Radon Mitigation in Oregon

Is Portland a low-radon market?

Portland averages are often moderate, but many homes in the metro and nearby counties still test above 4.0 pCi/L.

Do crawlspace homes in Oregon need testing?

Yes. Crawlspace soils and rim-joist leakage can drive elevated indoor readings.

How much does radon mitigation cost in Oregon?

Most homeowners in Oregon see mitigation quotes in the low-thousands, but the final cost depends on foundation type, fan location, and pipe routing complexity. A cost calculator can help you benchmark estimates before requesting bids.

Do I need radon testing in Oregon before hiring a contractor?

Yes. A valid short-term or long-term test is the fastest way to confirm if mitigation is needed and to scope the right system design.

What radon level is dangerous in Oregon?

EPA recommends action at 4.0 pCi/L, and many homeowners choose to reduce levels even below that threshold. Oregon includes Zone 1 and Zone 2 areas, with higher potential in several eastern and inland counties. ZIP-level lookup tools are useful for local context, but home testing is still required.

How do I choose a certified radon contractor in Oregon?

Look for current NRPP or NRSB credentials, ask for post-mitigation test expectations, and confirm local compliance details. Oregon does not require separate statewide mitigation licensure beyond national certification.

State Resources for Oregon

Radon mitigation cost in Oregon

Estimate likely project pricing by foundation type and system complexity.

Radon testing guide for Oregon homes

Learn when and how to test, plus how to interpret pCi/L results.

Radon levels and EPA zones in Oregon

See how state-level risk varies and what zone maps can and cannot tell you.

ZIP-level radon risk in Oregon

Check projected local risk by ZIP code before you request quotes.