Learn
Check a contractor
What the state license record shows, and how to read it before you call or hire.
- Bay Area contractor license check
Look up an electrical, HVAC, plumbing or refrigeration license by number or business name: classifications, status, expiration, bond and workers' comp, from CSLB's own list.
Free tool - Check a California contractor license before you call or hire
The Contractors State License Board (CSLB) runs a free online lookup. Here is how to use it: the ways to search, the tips that make a search work, what each section of the result shows (status, bond, workers' compensation, insurance), and when the database is down.
About 2 min readCalifornia
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Educational only; not legal, tax or financial advice. City and agency rules differ and change; check each official source before you act. Last checked against the sources October 22, 2026.