Northern Illinois Radon, LLC, is committed to excellence in every aspect of our business. We provide commercial and residential air quality testing, mold inspection and radon detection services to all of Illinois and Wisconsin. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We strive for quality of service by delivering the latest applied science coupled with maximum [radon detection protocol and mold inspection] knowledge, and trade experience, combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. IL Radon Measurement Professionals, OSHA certified: ID1028, Certified Commercial Mold Inspector (CCMI*76). Call (or text) today to schedule your next project: 630-915-9434.