Air quality specialists in St. Louis, MO
496 companies in and around St. Louis 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 St. Louis
- Asbestos Removal in St. Louis49 licensed companies · licensed by Missouri Department of Natural Resources
- Lead Paint Removal in St. Louis446 licensed companies · certified by US Environmental Protection Agency
- Radon Testing in St. Louis1 licensed company
No listings yet in St. Louis for air duct cleaning, mold remediation — this work is not licensed in Missouri, so we have no record to verify against.
Where these records come from
- Missouri Department of Natural Resources — we read its published records and show the date on every listing. You can check any of them yourself on Missouri’s list of department-certified asbestos contractors.
- 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.
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