Why is radon a concern for homes in Marshall and Lyon County?

Radon is a real concern across Marshall and Lyon County because much of southwest Minnesota sits on glacial soils and prairie geology that can release radon gas, which seeps up into homes through foundation cracks, sump pits, and slab penetrations. The Minnesota Department of Health considers radon a statewide problem, and counties across this region routinely test high enough that the state recommends every home be tested regardless of age or neighborhood. A brand-new home in a southeast Marshall subdivision can read just as high as an older house near downtown, because radon depends on soil and how the home draws air, not on the home's condition. Tight winter sealing against prairie cold can concentrate it further indoors. The only way to know your level is to test, and if it is elevated, mitigation systems are effective and reasonably priced. To read how we handle radon testing for local buyers, see our Google reviews, then build a free instant quote online through our quote form and add radon testing to your inspection.