ABSOLUTE ENVIRONMENTAL
Verified Pro
7+ years online5.0(34)
Radon Mitigation in Portland, OR
Compare 30 radon mitigation contractors near you in Portland and surrounding area with an average rating of 4.9/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
absoluteenvironment.com
APEX Home Inspections and Environmental Services, Inc.
Verified Pro
26+ years online4.9(311)
Integrity Home Inspections Inc
Verified Pro
~24 years online4.9(1221)
Alpha Environmental Services
Verified Pro
~23 years online4.8(519)
Other Businesses in This Area
Details Home Inspections
5.010½+ years onlineGuided Light Home Inspection, LLC
5.0~4 years onlineNonprofit Home Inspections
5.011½+ years onlineRadon Recon LLC
5.05½+ years onlineRadon Testing and Mitigation PNW
5.07+ years onlineRadon Testing And Mitigation PNW
5.07+ years onlineRedline Environmental
5.06+ years onlineresidential radon llc
5.010+ years onlineAccuGuard Environmental
4.92½+ years onlineEnvironmental Works
4.817½+ years onlinePure Environmental
4.814+ years onlineCascade Radon
4.718½+ years onlineJSE Labs Inc. — Milwaukie
4.7~20 years onlineXavier Environmental
4.721+ years onlineSoil Solutions
4.6~20 years onlineDown Under Environmental
4.07½+ years onlineRadon Mitigation in Nearby OR Cities
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Radon Mitigation in Portland, OR
Radon mitigation in Portland (OR) serves a Pacific Northwest Oregon market: Craftsman homes throughout Alberta (basement-construction common), mid-century homes, modern condos, and apartment complexes. Multnomah County is in EPA Zone 2 (moderate predicted levels). Testing finds elevated radon in 15-25% of basement homes. Typical jobs include sub-slab depressurization for basements.
Residential radon mitigation in Portland runs $1,800-$4,000. Oregon doesn't require radon-specific licensing; NRPP or NRSB certification standard. Portland permits for electrical work.
Frequently Asked Questions
- Does Portland have radon?
- EPA Zone 2 — moderate. 15-25% test elevated.
- OR tax advantage?
- No sales tax — significant savings.
- Irvington historic?
- Review for venting.
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NeedInstall helps connect customers with local installation professionals across Portland and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.