Air quality specialists in Ontario, CA
37 companies in and around Ontario 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 Ontario
- Asbestos Removal in Ontario2 licensed companies · licensed by California Division of Occupational Safety and Health
- Lead Paint Removal in Ontario35 licensed companies · certified by US Environmental Protection Agency
No listings yet in Ontario for air duct cleaning, mold remediation, radon testing — this work is not licensed in California, so we have no record to verify against.
Where these records come from
- California Division of Occupational Safety and Health — we read its published records and show the date on every listing. You can check any of them yourself on Cal/OSHA’s asbestos registrants’ database.
- 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