1st Defense Radon Testing And Mitigation
Verified Pro
9½+ years online5.0
Radon Mitigation in Bloomington, MN
Compare 25 radon mitigation contractors near you in Bloomington 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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Radon Mitigation in Bloomington, MN
Bloomington, Minnesota radon mitigation specialists in this directory cover central Bloomington and surrounding Hennepin County. Minnesota falls in EPA Radon Zone 1 — most Hennepin County homes test elevated. Sub-slab depressurization on a typical Bloomington basement home runs $1,500-$2,800 installed. Crawlspace systems run $2,400-$4,000. Most installs include condensate-pump-protection on the perimeter drain.
Minnesota Department of Health publishes county-by-county radon testing data showing Hennepin County in Zone 1. Real-estate transactions in Minneapolis-St. Paul almost universally include radon testing — most buyers expect a 48-hour test.
Frequently Asked Questions
- Do most Bloomington homes have radon issues?
- Yes — Minnesota is largely EPA Zone 1, and the majority of Hennepin County homes test above 4 pCi/L. Test before buying and consider mitigation pre-emptively if your test returns 2-4 pCi/L.
- How long does Bloomington radon mitigation take?
- Sub-slab depressurization is a 1-day job. Post-mitigation testing (48-hour follow-up) 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 outdoor cold-weather operation but should be installed in conditioned attic or garage spaces when possible to extend life. Fan replacement runs $300-$600 every 8-12 years.
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NeedInstall helps connect customers with local installation professionals across Bloomington 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.