1st Defense Radon Testing And Mitigation
Verified Pro
9½+ years online5.0
Radon Mitigation in St. Paul, MN
Compare 25 radon mitigation contractors near you in St. Paul 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 22, 2026
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Other Businesses in This Area
Lifetime Radon Mitigation Minneapolis
8+ years onlineElite Radon MN
5.0~2 years onlineEnergy & Environmental Services Inc
5.0~13 years onlineRadon Associates LLC | Crystal, MN Professional Radon Testing and Mitigation Services
5.012+ years onlineRadon Associates LLC | Oakdale, MN Professional Radon Testing and Mitigation Services
5.012+ years onlineRadon Associates LLC | Stillwater, MN Professional Radon Testing and Mitigation Services
5.012+ years onlineRadon Associates LLC | St. Paul, MN Professional Radon Testing and Mitigation Services
5.012+ years onlineRadon & Basement Water Armor
5.09+ years onlineRadon Reduction Inc
5.019 years onlineRadon Removal Inc
5.026+ years onlineSolution Enhance LLC : Radon Testing & Radon Mitigation
5.09+ years onlineHealthy Homes Radon
4.8~20 years onlineRadon Associates LLC | Apple Valley, MN Professional Radon Testing and Mitigation Services
4.812+ years onlineRadon Defense Systems
4.613+ years onlineGreat River Radon, LLC
4.3Radon Mitigation in Nearby MN Cities
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Radon Mitigation in St. Paul, MN
St. Paul radon mitigation specialists in this directory cover Highland Park, Mac-Groveland, Como, Summit Hill, and surrounding Ramsey County. Minnesota falls in EPA Radon Zone 1 — most Ramsey County homes test elevated. Sub-slab depressurization on a typical St. Paul basement home runs $1,500-$2,800 installed. Crawlspace systems run $2,400-$4,000.
Minnesota Department of Health publishes county-by-county radon testing data showing Ramsey County in Zone 1. Real-estate transactions in Twin Cities almost universally include radon testing.
Frequently Asked Questions
- Do most St. Paul homes have radon issues?
- Yes — Minnesota is largely EPA Zone 1, and the majority of Ramsey County homes test above 4 pCi/L. Test before buying.
- How long does St. Paul radon mitigation take?
- Sub-slab depressurization is a 1-day job. Post-mitigation testing confirms levels below action limit. Total turnaround is typically 3-5 days.
- What about Minnesota cold and radon fans?
- Quality radon fans are rated for cold-weather operation but install in conditioned attic or garage spaces when possible. Fan replacement runs $300-$600 every 8-12 years.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across St. Paul 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.