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Radon Testing · Pierson, IA

Radon Testing in Pierson

Radon Testing in Pierson, IA by Closer Look Inspectors. A photo-mapped digital report within 24 hours.

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Pierson · Woodbury County

Radon Testing in Pierson

Radon Testing in Pierson, Woodbury County, by Closer Look Inspectors. Pierson is a lumberyard and rail town platted in 1883 that peaked at 554 residents in 1920, and we calibrate every visit to that.

Radon testing places an EPA-protocol continuous monitor on a home's lowest livable level to measure radon gas — and it matters across Iowa, where Iowa HHS reports 71.6 percent of homes above the action level — the largest percentage of any state.

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Craftsman bungalow with a covered front porch and stone columns — Radon Testing in Pierson, IAPierson
Calibrated

Tuned to Pierson.

Pierson housing runs to houses from the 1883 platting and the lumberyard decades, early-1900s homes, and postwar houses, across the old townsite near the rail corridor, the city park with its 1941 rock shelter house, and Greenwood Cemetery, on loess-mantled uplands of the Northwest Iowa Plains near Pierson Creek and the Little Sioux River — and that mix shapes what a radon testing here needs to find. Instrument-grade tools, a local eye, every visit.

Local conditions in Pierson

No Iowa law requires a home inspection before a sale — the one mandatory time-of-transfer inspection covers private septic systems (Iowa Code 455B.172) — which makes an independent inspection the only thorough, buyer-side read on a Pierson home. Pierson sits in Woodbury County, and every Iowa county is EPA Radon Zone 1. Iowa HHS reports Iowa has the largest percentage of homes above the 4.0 pCi/L action level of any state — 71.6 percent in the Iowa Radon Survey — and the Iowa seller disclosure form asks for any known radon test results. Finished basements concentrate it, and only a 48-hour test gives you this home's number. Iowa leaves frost depth to the local building code rather than one statewide number, and the annual freeze-thaw cycle drives the settlement cracks and ice-dam wear we calibrate every Pierson visit to find.

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Questions

Common questions.

Is radon really a concern in Iowa?
Yes. The Iowa Department of Natural Resources reports that more than two in five Iowa homes have radon levels that pose a significant health risk, and finished basements are where it concentrates.
How long does the test run?
A 48-hour minimum under closed-house conditions; the result is delivered with your inspection report.
Pierson began as a lumberyard town, so does that matter for old houses?
It can. Pierson was platted in 1883 and the Joyce Lumber Company opened the same year, so wood was close at hand when the early town was built and many older houses are likely wood-frame. The town peaked at 554 residents in 1920 and now has around 337, so a good number of older houses have had long ownership and deferred maintenance. We confirm the foundation type and framing on each house, and check sill plates, floor framing, roof layers, wiring age and basement moisture. Woodbury County is EPA Radon Zone 1, so a radon test is a sensible add-on.
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