Air quality specialists in Chicago, IL
1,981 companies in and around Chicago hold a current licence or certification for this work. Every listing is matched to the record that proves it, and shows the date we read that record.
Services in Chicago
- Asbestos Removal in Chicago28 licensed companies · licensed by Illinois Department of Public Health
- Lead Paint Removal in Chicago1737 licensed companies · certified by US Environmental Protection Agency
- Radon Testing in Chicago216 licensed companies · licensed by Illinois Emergency Management Agency and Office of Homeland Security
No listings yet in Chicago for air duct cleaning, mold remediation — this work is not licensed in Illinois, so we have no record to verify against.
Where these records come from
- Illinois Department of Public Health — we read its published records and show the date on every listing. You can check any of them yourself on IDPH’s licensed asbestos contractor directory.
- US Environmental Protection Agency — we read its published records and show the date on every listing. You can check any of them yourself on EPA’s Lead-Safe Certified Firm search.
- Illinois Emergency Management Agency and Office of Homeland Security — we read its published records and show the date on every listing. You can check any of them yourself on Illinois’s active radon licensee listing.
Verification describes records we read on the dates shown. It is not an endorsement. How we verify
Guides
- How Radon Mitigation Systems Work, and What They CostWhat a radon reduction system is, how much of the radon it removes, what states say it costs, and why the work needs a qualified contractor.3 min read · 15 sources
- How to Test Your Home for RadonHow to test for radon the way the EPA and CDC describe it: which kit to use, where to put it, how long it runs, and what to do with the result.2 min read · 13 sources
- What Is a Safe Radon Level in a Home?What the EPA and CDC say about radon levels: the 4 pCi/L action level, why there is no known safe level, and what the numbers on a test result mean.2 min read · 14 sources