
Sump pits & floor joints
Radon enters through sump pits, foundation cracks, and floor-wall joints — common features in the wet, lake-adjacent basements around Annandale.

Wright County lake country sits in Minnesota's high-radon region. A continuous-monitor radon test tells you exactly what's in the air on the lowest level of an Annandale home — including the finished walkout basements families live in every day.
Answer a few quick questions, get your free quote now, and pick a time. Radon testing is most affordable bundled with your inspection.
Radon is a colorless, odorless radioactive gas that rises from the soil and enters homes through foundation cracks, sump pits, and floor-wall joints. We measure it with a continuous radon monitor placed on the lowest livable level under closed-house conditions, recording hourly readings over at least 48 hours.
Results are reported in picocuries per liter (pCi/L) and compared against the EPA action level of 4.0 pCi/L. It's a quick, valuable add-on to a full home inspection. Learn more about radon testing or about home inspection in Annandale, MN.
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Annandale sits in the heart of Wright County lake country, ringed by Pleasant, John, Sylvia, and Cedar lakes. Many of its lake homes are built into sloping shoreline lots with finished walkout lower levels — the kind of space where radon collects and where families spend the most hours.

Radon enters through sump pits, foundation cracks, and floor-wall joints — common features in the wet, lake-adjacent basements around Annandale.

Annandale sits in Wright County's high-radon region, where the glacial soils that hold the lakes also carry radon gas up into the homes built above them.

Lake homes with finished walkout basements used as living and sleeping space mean longer daily radon exposure if the lower level goes untested.
A professional continuous radon monitor that records hourly readings, not a single passive snapshot.
Placement on the lowest livable level — including finished walkout lower levels — under closed-house conditions, following EPA protocol.
A minimum 48-hour measurement period for an accurate, averaged result you can trust.
Results reported in picocuries per liter and compared against the EPA action level of 4.0 pCi/L.
Hourly logging that flags disturbances or open-house conditions affecting the reading.
Plain-language explanation of your result and what it means for mitigation, included in your report.
Use the calculator above to get your instant quote and book the test online.
The continuous monitor is set on the lowest livable level under closed-house conditions.
The monitor logs hourly readings for at least 48 hours for an accurate average.
Your pCi/L result and clear next steps delivered in your report, fast.
Pair radon testing with a full home inspection, a sewer scope, or mold testing, or learn more about home inspection in Annandale, MN. We serve Annandale and the surrounding Wright County lake communities.