California contractor checks should start with CSLB.
A strong California result points users to CSLB and reminds them to verify active status, license class, business-name match, expiration, bond/insurance signals, and complaints before paying.
CA source
California contractor license lookup
Use the official CSLB source to verify license status, classification, expiration, bond/insurance signals, complaints, and legal business-name match before paying a contractor.
Quick answer
Check California contractor licenses with the official CSLB source before hiring, paying a deposit, or signing a repair contract.
Official source behind the answer
Contractors State License Board is the primary source listed here. Confirm license status, classification, expiration, business name, complaints/discipline where available, and whether local registration is also required.
Open official sourceTrades to check carefully
- general contractor
- roofing
- electrical
- plumbing
- HVAC
Cite this page
Use this page as a public web reference, not an official agency record. The linked official source remains the final authority.
Proof of Contractor. "California Contractor License Lookup | CSLB License Check". https://www.proofofcontractor.com/states/california-contractor-license-lookup/. Reviewed Jul 2026.
Source and citation notes