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Radon Testing · Madrid, IA

Radon Testing in Madrid

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

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Madrid · Boone County

Radon Testing in Madrid

Radon Testing in Madrid, Boone County, by Closer Look Inspectors. Madrid is a former coal-camp town near the High Trestle Trail, with older stock and trail-era new builds.

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.

Madrid is served by our Des Moines team →  ·  (563) 517-7815

Split-level home with stone facing on a sloped lot — Radon Testing in Madrid, IAMadrid
Local housing

Homes in Madrid.

Madrid housing runs to former coal-camp housing and older town stock, plus trail-era new builds, across the town core and the newer edges near the High Trestle Trail, on lobe till above the Des Moines River valley — and that mix shapes what a radon testing here needs to find.

Local conditions in Madrid

Madrid sits on Des Moines Lobe till — heavy, poorly drained clay that holds water against foundations and moves with moisture, which is what drives basement seepage and foundation cracking across central Iowa. Madrid sits in Boone 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 that Madrid-area homes face.

Home inspection in Madrid →  ·  More about radon testing →

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.
Does Madrid's coal-camp past matter?
It shapes the stock — much of the older housing here began as modest miners' housing, since expanded and altered over a century, so we look hard at additions, foundations and the quality of layered work. Valley-rim lots add slope drainage, and the newer trail-era builds get a standard verification.
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