5.0 (145 Google reviews)
Radon Pros in Illinois
54 contractorsEPA zone context: Most of northern and central Illinois is Zone 1. The Chicago metro and surrounding suburbs are among the highest-risk areas.
Matthew Morgan
Verified4.9 (61 Google reviews)
5.0 (126 Google reviews)
5.0 (145 Google reviews)
Mackenzie Griffin
Verified4.9 (52 Google reviews)
Ryan P Geneser
Verified5.0 (54 Google reviews)
Serving Heyworth, Illinois and surrounding areas with radon mitigation, radon testing, commercial radon services, post-mitigation verification testing. In business since 1998. Handles basement foundations.
4.8 (16 Google reviews)
Serving Highland, Illinois and surrounding areas with radon mitigation, radon testing, radon-resistant new construction (RRNC), post-mitigation verification testing. Handles basement foundations.
5.0 (1 Google reviews)
5.0 (70 Google reviews)
2.7 (69 Google reviews)
Krzysztof Kaczor
Verified4.0 (197 Google reviews)
4.9 (3851 Google reviews)
John Rolnicki
Verified5.0 (77 Google reviews)
State Info
Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.
Popular Cities in Illinois
Related Radon Guides
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Testing methods, closed-house conditions, and how to read your results.
Foundation Types & Radon
How basements, slabs, and crawlspaces affect radon entry and system design.
Radon in Real Estate
What buyers and sellers should expect during testing, mitigation, and closing.
Radon System Maintenance
Maintenance schedules, fan replacement, and keeping your mitigation system effective.