EPA zone context: Most of northern and central Illinois is Zone 1. The Chicago metro and surrounding suburbs are among the highest-risk areas.
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Take the 90-second radon assessment4.8 (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.
Testing methods, closed-house conditions, and how to read your results.
How basements, slabs, and crawlspaces affect radon entry and system design.
What buyers and sellers should expect during testing, mitigation, and closing.
Maintenance schedules, fan replacement, and keeping your mitigation system effective.