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Radon Testing in an Annandale, MN lake home
⬥ Annandale, MN · InterNACHI Master Certified

Radon testing in Annandale, MN — the gas you can't see.

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.

★★★★★ 5-star rated✓ Continuous radon monitor✓ Bundle with your inspection
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Get your free Annandale radon testing quote & book online.

Answer a few quick questions, get your free quote now, and pick a time. Radon testing is most affordable bundled with your inspection.

What It Is

A precise measurement of Annandale's air, not a guess.

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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Poured concrete basement foundation where radon can enter an Annandale, MN home
Why It Matters in Annandale

Walkout basements make radon a daily exposure.

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 test manometer on a radon mitigation pipe
Entry Points

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.

Basement foundation where radon levels are measured in Annandale, MN
Geology

High-radon soils

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.

Finished walkout basement living space where radon is a concern in Annandale
Living Space

Finished walkout levels

Lake homes with finished walkout basements used as living and sleeping space mean longer daily radon exposure if the lower level goes untested.

What's Included

What the Annandale radon test covers.

Continuous Monitor

A professional continuous radon monitor that records hourly readings, not a single passive snapshot.

Proper Placement

Placement on the lowest livable level — including finished walkout lower levels — under closed-house conditions, following EPA protocol.

48+ Hour Test

A minimum 48-hour measurement period for an accurate, averaged result you can trust.

pCi/L Results

Results reported in picocuries per liter and compared against the EPA action level of 4.0 pCi/L.

Tamper Awareness

Hourly logging that flags disturbances or open-house conditions affecting the reading.

Clear Guidance

Plain-language explanation of your result and what it means for mitigation, included in your report.

How It Works

Accurate Annandale results, simply explained.

01

Get your free quote

Use the calculator above to get your instant quote and book the test online.

02

We place the monitor

The continuous monitor is set on the lowest livable level under closed-house conditions.

03

48-hour measurement

The monitor logs hourly readings for at least 48 hours for an accurate average.

04

Get your result

Your pCi/L result and clear next steps delivered in your report, fast.

FAQ

Radon testing questions for Annandale, answered.

What is radon and why is it dangerous?
Radon is a colorless, odorless radioactive gas that rises from the soil and seeps into homes through foundations. It is the leading cause of lung cancer among non-smokers in the United States. Because you cannot see or smell it, testing is the only way to know whether a home has a problem.
Do I need a radon test in Annandale, MN?
Yes. The Minnesota Department of Health reports that more than two in five Minnesota homes test above the EPA action level. Annandale sits in Wright County's high-radon region, and lake-country homes here are full of finished walkout basements and lower-level family rooms used daily — exactly the living spaces where radon accumulates. Levels vary house to house regardless of age, so the only way to know your Annandale home's level is to test it.
How is radon testing done?
We place a continuous radon monitor on the lowest livable level of the home, typically the basement or walkout lower level, under closed-house conditions for a minimum of 48 hours. The monitor records hourly readings, which we average and report in picocuries per liter and compare against the EPA action level of 4.0 pCi/L.
How much does radon testing cost?
Radon testing is affordable on its own and even more so bundled with your home inspection. Use the free instant quote tool on this page to see your exact price in about two minutes and book a time.
What happens if radon levels are high?
If your result is at or above 4.0 pCi/L, the EPA recommends installing a radon mitigation system. These systems vent radon from beneath the foundation to the outside and are highly effective. Your report explains the result clearly so you can plan your next step.

Related services & service area

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.

You can't see radon. Test for it in Annandale.

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