If the radon levels in your home are only slightly elevated, try sealing holes and cracks in concrete walls and floors and test again. In most cases, sealing doesn’t solve the problem. But you’ll have ...

You got the radon test results back. The numbers are high—maybe 8.0 pCi/L, maybe higher. Your realtor says you need mitigation before closing. Or maybe you've lived in your Wisconsin home for years ...