86 Radon
Verified Pro
3+ years online5.0(38)
Radon Mitigation in Gresham, OR
Compare 23 radon mitigation contractors near you in Gresham 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 April 27, 2026
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Other Businesses in This Area
RADON MARKETING TEAM
6+ years online5W Radon Mitigation
5.0Aric Outlaw
5.0~11 years onlineGuided Light Home Inspection, LLC
5.0~4 years onlineRadon Recon LLC
5.05½+ years onlineRadon Testing and Mitigation PNW
5.07+ years onlineRadon Testing And Mitigation PNW
5.07+ years onlineresidential radon llc
5.010½+ years onlineStatus Inspections Inc
5.06 years onlineAPEX Home Inspections and Environmental Services, Inc.
4.926½+ years onlineEnvironmental Works
4.817½+ years onlineCascade Radon
4.718½+ 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 Gresham, OR
Gresham, Oregon radon mitigation specialists in this directory cover central Gresham, Rockwood, Centennial, and surrounding Multnomah County. Oregon's radon levels vary — Multnomah County has documented elevated readings in some areas. Sub-slab depressurization on a typical Gresham home runs $1,400-$2,800 installed.
Oregon Health Authority publishes county-by-county radon data. Real-estate transactions in Gresham increasingly include radon testing.
Frequently Asked Questions
- Do most Gresham homes have radon?
- Some — Oregon radon levels vary. Test before assuming.
- How long does Gresham radon mitigation take?
- Sub-slab depressurization is a 1-day job.
- What about radon in crawlspaces?
- Crawlspaces require sealed vapor barrier and active sub-membrane vent fan.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Gresham 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.