Home inspectors
Is radon a concern in Dane County homes, and how do I test for it?
A common question, answered by the MadisonWI.com editors · November 9, 2026
1 answer
From MadisonWI.com
Yes. Public Health Madison & Dane County says roughly half of the homes tested in Dane County over the past five years had high radon levels. Radon is a colorless, odorless radioactive gas that seeps up from the ground through foundation cracks and openings, and it's the leading cause of lung cancer among non-smokers. Testing is the only way to know your home's level. You can buy a test kit online or at a hardware store, order one by mail from Public Health, or pick one up at its Atrium Office (2300 S. Park St.) or East Washington Avenue Office (2705 E. Washington Ave.). Results usually take two to three weeks. For help, call the South-Central Radon Information Center at 608-243-0392. If your level is concerning, a certified contractor can install a system to keep radon out; the Wisconsin Radon Information website (lowradon.org) lists qualified contractors. Source: Public Health Madison & Dane County, Prevent Lung Cancer by Testing Your Home for Radon (checked November 2026).
Written by the MadisonWI.com editors · November 9, 2026