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Radon Testing · Coralville, IA

Radon Testing in Coralville

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

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Coralville · Johnson County

Radon Testing in Coralville

Radon Testing in Coralville, Johnson County, by Closer Look Inspectors. Coralville is a fast-growing university-adjacent city of newer construction.

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

Homes in Coralville.

Coralville housing runs to newer construction with some postwar stock, across the newer subdivisions, on Iowa River corridor and rolling till — and that mix shapes what a radon testing here needs to find.

Local conditions in Coralville

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 Coralville home. Coralville sits in Johnson 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 Coralville-area homes face.

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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 is typical in Coralville homes?
Predominantly newer construction, so the value is verifying build quality — envelope details, grading that has settled since the fill went in, and whether mechanicals were installed to the design rather than merely to the drawing.
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