Certified Radon Mitigators
in Rockford, Illinois

Rockford and Winnebago County sit in northern Illinois, where glacial till over Paleozoic limestone produces radon levels that often exceed the state's already-elevated 5.1 pCi/L average. The Rockford metro includes a mix of older industrial-era housing and mid-century ranch homes, most with full basements that accumulate radon efficiently during the region's long cold winters. Northern Illinois is EPA Zone 1, and Rockford-area homeowners who haven't tested in the past two years should retest — especially if they've made changes to their HVAC system or weatherization. Illinois-certified contractors serve the Rockford market year-round.