Verify a Contractor's License in California

Search the official California Contractors State License Board (CSLB) records to confirm any California contractor is properly licensed before signing a contract. Free public lookup, updated weekly.

About California Contractor Licensing

The California Contractors State License Board (CSLB) regulates contractor licensing in California. Required for all jobs $500 or more in labor and materials.

Population served: 39M residents.

Licensing authority: Contractors State License Board.

General contractor license required: Yes.

Official board website: https://www.cslb.ca.gov/

Notable Trades Licensed in California

How to Verify a California Contractor

  1. Ask the contractor for their full legal name and license number.
  2. Search the ProLicenseCheck database above, or visit the California Contractors State License Board (CSLB) directly.
  3. Confirm the license is currently active, not expired or suspended.
  4. Check whether the license type matches the work being performed.
  5. Verify the address and contact information on file matches what the contractor provided.

Why License Verification Matters

Hiring an unlicensed contractor in California can leave you legally and financially exposed. Unlicensed work often voids homeowner insurance claims, can prevent property sales, and leaves you with no recourse if the work is defective.

Verify Contractors in Other States