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Radon Testing · Knoxville, IA

Radon Testing in Knoxville

Radon Testing in Knoxville, IA by Closer Look Inspectors — a 235-minute drive away. A photo-mapped digital report within 24 hours.

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Knoxville · Marion County

Radon Testing in Knoxville

Radon Testing in Knoxville, Marion County, by Closer Look Inspectors — a 235-minute drive away. Knoxville is the sprint-car county seat, with early-1900s stock on southern-drift clay hills, 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, which has the highest average indoor radon level of any state — roughly five in ten homes test above the action level.

Two-storey home with gabled roof and attached two-car garage — Radon Testing in Knoxville, IAKnoxville
Calibrated

Tuned to Knoxville.

Knoxville housing runs to early-1900s county-seat homes and postwar additions, across the core around the square and the postwar edges, on southern-drift clay hills near Lake Red Rock — and that mix shapes what a radon testing here needs to find. Instrument-grade tools, a local eye, every visit.

Local conditions in Knoxville

Iowa runs no municipal time-of-sale inspection ordinance, which makes an independent inspection the only thorough, buyer-side read on a Knoxville home. Knoxville sits in Marion County, and Iowa has the highest average indoor radon level of any state — the Iowa DNR puts roughly five in ten Iowa homes above the 4.0 pCi/L action level, and Iowa sellers must disclose known radon results on the property disclosure. Finished basements concentrate it, and only a 48-hour test gives you this home's number. Footings here are set below a frost line of roughly 36 to 42 inches, and that annual freeze-thaw cycle drives the settlement cracks and ice-dam wear we calibrate every Knoxville 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 roughly 50 percent of homes statewide measure above the EPA action level, 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.
Do you cover Knoxville?
Yes — Marion County is in range. The clay hills make drainage and foundation movement the structural priority, the older stock gets its systems dated, and Iowa's nation-leading radon levels put the 48-hour test on every list.
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