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Radon Testing · Lisbon, IA

Radon Testing in Lisbon

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

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Lisbon · Linn County

Radon Testing in Lisbon

Radon Testing in Lisbon, Linn County, by Closer Look Inspectors. Lisbon is an 1851 town whose Main Street district is dated mostly 1875 to 1899.

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.

Questions about a Lisbon home?  ·  Call or text (563) 517-7815

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

Homes in Lisbon.

Lisbon housing runs to a Main Street district with fifteen contributing buildings mostly built 1875 to 1899, plus later housing across roughly 922 units, across the Lisbon Main Street Historic District, the residential blocks laid out from 1851, and the newer edges, on gently rolling Iowan Surface ground in eastern Linn County — and that mix shapes what a radon testing here needs to find.

Local conditions in Lisbon

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 Lisbon home. Lisbon sits in Linn 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 Lisbon-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.
Lisbon's Main Street is National Register listed — does that affect a home purchase nearby?
It affects what you should expect to find, and how repairs get approached. The Lisbon Main Street Historic District was listed in 2019 with fifteen contributing buildings, most built between 1875 and 1899, and the Meyers Farmstead Historic District followed in 2021. Buildings of that era carry solid masonry walls, heavy timber framing and original window openings, and they do not tolerate the same retrofits a modern wall does — adding interior insulation without a plan for moisture is a common mistake. Wall assemblies, mortar, roof drainage and service layering are all worth reading with that in mind.
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