Radon Mitigation Cost in Minnesota

Minnesota ranks #6 in the U.S. for radon risk. 78% of Minnesota counties are classified by the EPA as Zone 1 — the highest-risk category, with predicted average indoor radon levels above the EPA action level of 4 pCi/L. Here's what that means for mitigation cost.

Minnesota radon risk profile

Minnesota has 68 of 87 counties (78%) in EPA Zone 1. The state's geology of glacial till on top of uranium-rich bedrock produces elevated radon throughout the metro and rural areas alike. Minnesota Department of Health estimates 2 in 5 Minnesota homes have elevated radon levels.

Typical mitigation cost

National typical range: $1,200-$2,500 installed for a standard active sub-slab depressurization (ASD) system in a single-family home. Multi-level or multi-zone homes can reach $3,000-$5,000. These figures are from aggregated contractor pricing surveys and are not specific to Minnesota.

We do not publish a Minnesota-specific average cost figure because no reliable state-level cost survey is publicly available. Get 2-3 quotes from EPA-listed certified mitigators in your county for accurate Minnesota pricing.

Minnesota-specific factors

Minnesota's housing stock is basement-heavy due to cold winters and frost-line foundation requirements. Sub-slab depressurization is the standard mitigation approach. The state has strong consumer-protection rules around mitigation contractor licensing.

How to find a certified mitigator in Minnesota

The two main certifying bodies for radon mitigation are the National Radon Proficiency Program (NRPP) and the National Radon Safety Board (NRSB). Both maintain public contractor directories searchable by ZIP code. If you live in a state with a radon program (which Minnesota does), the state health department typically maintains a certified-contractor list as well — usually on the department's environmental health page.

Always retest after mitigation. A properly designed system should reduce levels to under 2 pCi/L; verify the result rather than trusting the contractor's word.

Try the calculator

Radon Mitigation Cost Estimator

Get an installed-cost range for a standard ASD system based on home size and foundation type.

Home Inspection Cost Estimator

Pre-purchase home inspection cost — radon testing is often a bundled add-on.

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