Radon Mitigation in Rockford, IL

Radon Mitigation in Rockford, Illinois

Rockford and Winnebago County sit in EPA Radon Zone 1. Northern Illinois has some of the state's highest radon concentrations, and the Rockford metro shows consistent elevated readings across residential testing. IEMA identifies northern Illinois as one of the state's highest-risk regions.

Why Rockford Homes Test High

Northern Illinois sits atop glacial till over dolomite and shale bedrock. Rockford's position along the Rock River corridor, with permeable glacial deposits, creates favorable conditions for radon migration. Much of Rockford's housing stock was built before 1960, with full basements and block or stone foundations that predate modern radon-resistant building codes.

What Radon Mitigation Costs in Rockford

• Poured concrete basement: $800–$1,300
• Block foundation: $1,000–$1,600
• Crawl space: $1,000–$1,500
• Older stone or rubble foundations: $1,400–$1,800

Rockford's proximity to Chicago means metro-area contractors compete for jobs, keeping pricing reasonable.

Illinois IEMA Licensing

Illinois requires radon mitigators to hold an IEMA license plus NRPP or NRSB national certification. Verify both before hiring.

Finding a Certified Mitigator in Rockford

Find a Certified Radon Mitigator in Rockford →

Winnebago County has IEMA-licensed contractors serving Rockford and surrounding areas. Average mitigation costs run $900–$1,400.