Certified Radon Mitigators
in Columbus, Ohio

Columbus and Franklin County sit on limestone and shale bedrock overlain by glacial till, a combination that produces moderate to elevated radon levels across the metro area. Central Ohio is EPA Zone 2, with Columbus-area homes averaging 2–5 pCi/L — but individual homes in neighborhoods like Clintonville, Bexley, and Worthington routinely test above the 4 pCi/L action level. Ohio's housing stock skews toward older ranch homes and two-stories with full basements, which are both common and cost-effective to mitigate. Testing is recommended for every Columbus home with a basement or ground-floor living space.