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Radon Testing · Des Moines, IA

Radon Testing in Des Moines

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

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Des Moines · Polk County

Radon Testing in Des Moines

Radon Testing in Des Moines, Polk County, by Closer Look Inspectors. Des Moines is Iowa's capital and largest city, a mix of historic neighborhoods and postwar suburbs on Des Moines Lobe till.

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.

Des Moines is served by our Des Moines team →  ·  (563) 517-7815  ·  Our Des Moines radon testing notes →

Split-level home with stone facing on a sloped lot — Radon Testing in Des Moines, IADes Moines
Local housing

Homes in Des Moines.

Des Moines housing runs to historic neighborhoods and extensive postwar suburbs, across the historic core neighborhoods and the surrounding suburbs, on Des Moines Lobe glacial till — heavy, poorly drained clay — and that mix shapes what a radon testing here needs to find.

Local conditions in Des Moines

Des Moines 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. Des Moines sits in Polk 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 Des Moines-area homes face.

Radon Testing in Des Moines: what matters

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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.
What drives defects in Des Moines homes?
Des Moines Lobe till is heavy, poorly drained clay that holds water against foundations and moves with moisture. That combination drives basement seepage and foundation cracking more than anything else here, so grading, drain tile and sump performance lead the report. Radon is the second priority — Polk County is Zone 1 and Iowa's levels are the highest in the nation.
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