About Us

A-1 Radon is a locally owned and operated business serving Green Bay, Appleton, and Milwaukee for over 25 years.

Since 2006 we have been testing and mitigating (reducing) radon in homes and businesses. Since then we have grown to installing over 800 systems annually. We maintain certification with the National Radon Proficiency Program (NRPP).

We maintain 2 full service stores in Green Bay and Appleton that carry radon testing kits and educational literature. Our office in Cedarburg offers Radon testing and mitigation.