Radon Testing in Owatonna, MN.
About 2 in 5 Minnesota homes test above the EPA's radon action level. Don't guess — test. We deploy continuous-monitor radon tests on inspection day and bundle results with your report.
Why radon testing matters in southern Minnesota.
Radon is a naturally-occurring radioactive gas that seeps from soil into homes through foundation cracks, sump pits, and basement floor drains. It's the second-leading cause of lung cancer in the U.S. — and Minnesota has one of the highest residential radon profiles in the country. The Minnesota Department of Health recommends every home be tested before purchase, regardless of age, foundation type, or whether the previous owner "felt fine."
EPA-protocol testing
Continuous-monitor radon test deployed under closed-house conditions for a minimum of 48 hours — exactly to the EPA short-term test protocol.
Bundled with inspection
We deploy on inspection day, retrieve 48 hours later. Results are integrated into the same digital report — no separate appointment, no separate report to chase.
Hour-by-hour data
Continuous monitors capture hourly readings, not just an average. We can see exactly when radon spiked and tell you whether the test conditions were valid.
Mitigation referrals
If your home tests above 4.0 pCi/L, we'll refer you to certified local mitigation contractors. Most systems are installed in a single day.
Radon testing — common questions.
Do I need radon testing in southern Minnesota?
Yes. The Minnesota Department of Health classifies the entire state as elevated-radon risk; about 2 in 5 Minnesota homes test above the EPA action level. Steele, Rice, Dodge, Freeborn, and Mower counties are all squarely in that zone.
How long does a radon test take?
A minimum of 48 hours under closed-house conditions. We deploy on day one of your inspection and retrieve 48 hours later. Results go into your inspection report.
What's the EPA action level?
4.0 pCi/L. The EPA recommends mitigation at or above this level. MDH recommends considering mitigation between 2.0–3.9 pCi/L as well.
What if my home tests high?
Most homes are mitigated with a sub-slab depressurization system installed in a single day by a certified contractor. We'll provide local referrals.
Can I add radon to my home inspection?
Yes — it's our most-requested add-on. Use the Instant Free Quote tool to add it.
Other inspection services.
Owatonna Home Inspection
Full home inspection in every Owatonna ZIP — thermal imaging and drone scans included.
Faribault Home Inspection
Full coverage in Rice County including historic Faribault homes and newer subdivisions.
Northfield Home Inspection
College-town housing stock requires special expertise — we know it well.