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

Verified Pro Installers

Other Businesses in This Area

RADON MARKETING TEAM

6+ years online
radonmarketingteam.com

5W Radon Mitigation

5.0
5wradon.com

Aric Outlaw

5.0~11 years online
aricoutlaw.com

Guided Light Home Inspection, LLC

5.0~4 years online
glhinspection.com

Radon Recon LLC

5.05½+ years online
nwradonrecon.com

Radon Testing and Mitigation PNW

5.07+ years online
radonmitigationpdx.com/battleground

Radon Testing And Mitigation PNW

5.07+ years online
radonmitigationpdx.com

residential radon llc

5.010½+ years online
residentialradonllc.com/location

Status Inspections Inc

5.06 years online
statusinspectionsinc.com

APEX Home Inspections and Environmental Services, Inc.

4.926½+ years online
apexhomeinspect.comGet a Free Quote

Integrity Home Inspections Inc

4.9~24 years online
integrityhomeinspection.comGet a Free Quote

Alpha Environmental Services

4.8~23 years online
alphaenvironmental.netGet a Free Quote

Environmental Works

4.817½+ years online
eworksnw.com

Cascade Radon

4.718½+ years online
cascaderadon.com

Soil Solutions

4.6~20 years online
soilsolutionsenvironmental.com

Down Under Environmental

4.07½+ years online
downunderenviro.com/contact-us

Radon Mitigation in Nearby OR Cities

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.

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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.

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