Licensed Asbestos Abatement Companies in California

Asbestos abatement in California is regulated at the state level by the California Division of Occupational Safety & Health (Cal/OSHA), which licenses the contractors and consultants allowed to carry out asbestos work. Buildings constructed before the 1980s routinely contain asbestos in flooring, insulation, roofing, and textured coatings, and disturbing it without a licensed professional is both dangerous and, in most cases, illegal. The 325 firms below all hold an active California asbestos license, verified against the official state register.

All 325 firms verified against the official Cal/OSHA register as of July 2026.

• Cities & towns with licensed firms: Alamo, Alhambra, Alta Loma, Anaheim, Antioch, Apple Valley, Atascadero, Auburn, Azusa, Bakersfield, Baldwin Park, Bell Gardens, and 152 more.
• License mix: 325 abatement contractors and 0 testing & inspection firms.
• Cross-state coverage: 16 of these firms are headquartered out of state but hold a current California license.
• Customer ratings: 235 firms have Google reviews, averaging 4.3 out of 5.

• Verify the license. Every firm on this page is verified against the Cal/OSHA register, and each listing shows the license number so you can check it yourself.
• Match the license to the job. Use an abatement contractor for removal or repair, and an independent testing & inspection firm for surveys, sampling, and clearance air testing.
• Get at least three written quotes. A proper quote details the scope of work, containment method, waste disposal, and final clearance testing.
• Ask about insurance. Licensed firms should carry general liability and, for abatement, pollution liability coverage. Request certificates before work starts.