Radon Mitigation in Madison, SD
Call (605) 210-7667 Lake County, 48 miles from Sioux Falls, population about 6,500.
Lake country northwest of Sioux Falls, where a large share of the housing sits on or near water.
Why radon is a problem in Madison
Madison sits between Lake Herman and Lake Madison on glacial moraine, which is a jumble of sand, gravel and till rather than the uniform material further south. Permeable pockets in that mix move soil gas readily.
What Madison housing is built like
Lake homes are the distinctive part. Many started as seasonal cabins on crawl spaces or shallow slabs and got winterised and expanded, which produces exactly the mixed foundation that needs more than one suction point. Private wells are common outside the city.
A converted lake cabin is rarely one foundation. It is usually two or three, poured in different decades, and suction does not cross a footing wall.
Who calls us from Madison
Lake property is what makes Madison distinctive. A converted cabin is rarely one foundation, and a system that treats the original structure will run perfectly and still leave the additions untouched, because suction does not cross a footing wall. In-town Madison near Dakota State University is conventional work by comparison.
Local landmarks and roads in our service area
Crews working Madison cover Dakota State University, Lake Herman, Lake Madison, Madison Regional Health System, South Dakota Highway 34, South Dakota Highway 19 and Lake Herman State Park, and the surrounding rural addresses in Lake County.
Radon services available in Madison
radon mitigation systems for Madison homes
Sub-slab depressurization systems installed in a day, tested after, guaranteed under 4.0 pCi/L.
radon testing for Madison homes
Short-term and long-term testing, plus post-mitigation verification tests with lab documentation.
Fan Replacement & Repair in Madison, SD
Dead fan, dropped manometer, howling pipe, or a system somebody else installed wrong.
Madison Crawl Space Systems
Sealed vapor barrier over exposed soil, then sub-membrane depressurization.
Commercial Mitigation in Madison
Schools, daycares, clinics, offices, and multifamily buildings, with documentation for compliance files.
Madison Radon in Well Water
Aeration and GAC systems for acreages and rural homes on private wells.
What is particular about Madison
Two things set this town apart from the metro. Dakota State University anchors a stable in-town housing market where the work is conventional and the pricing predictable. Then there are the lakes, and lake property is a different trade almost entirely. A place that began as a fishing shack on posts in 1962, gained a bedroom wing in the eighties, a poured-slab great room in 2004 and a three-season porch after that, is now four buildings pretending to be one. Nobody kept drawings. The footings between those pieces block suction completely, which means a system serving the original structure can run flawlessly for years while two of the four sections have never been touched.
Common questions from Madison
Why do my cabin and my neighbour's read so differently?
Moraine. Sand and gravel pockets sit next to dense till with no visible pattern, so two properties fifty feet apart can have genuinely different conditions underneath them.
Should I mitigate a cabin I only use in summer?
If anyone sleeps at lower level regularly, or it has become a year-round home, treat it like any other house. Exposure scales with time spent in the building.
Scheduling and travel
Forty-eight miles northwest on Highway 34. Seasonal properties are worth scheduling in spring when the place is opened up, and the manometer check belongs on your opening-up list alongside turning the water on.
Ready for a number? Call (605) 210-7667 or send the form. Background on pricing is in our Sioux Falls radon cost guide, and the full service list is on the services page.