All construction trades (~45 classifications). Lookup shows status, bond, and complaint disclosure.
164,842 California contractors on ProFix carry a verified-active CSLB license (as of 2026-06-15) — matched to official public records, with the live lookup linked on every profile.
Check a California license against our roster
Enter a license number for an instant check against ProFix's verified California roster — a head start, not a replacement for the board. Then confirm current status at the Contractors State License Board (CSLB), which is always the system of record.
Exact license number is the safest path.
A name search can only return possible matches. Confirm the exact license number before trusting any candidate.
1. Get the license number + legal business name
Ask the contractor for their California license or registration number and the exact legal name it's held under. A real contractor gives this without hesitation — it's on their truck, estimates, and contract.
2. Look it up at the Contractors State License Board (CSLB)
Use the official California authority directly — not a third-party aggregator — so you're reading the source of truth. All construction trades (~45 classifications). Lookup shows status, bond, and complaint disclosure.
3. Confirm the status is ACTIVE
Only an active (or current) status means they're licensed today. Expired, suspended, or revoked is a hard stop — and a contractor who let it lapse is telling you something.
4. Check the classification matches your job
Licenses are scoped to specific trades. Confirm the classification covers the work you're hiring for, and that the name on the license matches the name on your contract.
5. Check bond, insurance, and complaints where shown
Many boards also show bond amount, workers' compensation, and complaint or disciplinary history. A bond and active workers' comp protect you; an open complaint is worth a direct conversation before you sign.
California contractor-license FAQ
How do I check if a contractor is licensed in California?
Get the contractor's license number and legal business name, then look it up at the Contractors State License Board (CSLB) — the free official public lookup, not a third-party site. Confirm the status is ACTIVE, the classification covers the work you're hiring for, and the name matches your contract. All construction trades (~45 classifications). Lookup shows status, bond, and complaint disclosure.
Who licenses contractors in California?
The Contractors State License Board (CSLB) is the official California authority. All construction trades (~45 classifications). Lookup shows status, bond, and complaint disclosure.
Does ProFix verify California contractor licenses?
Yes. We've matched 171,990 California listings to an official CSLB record from public data — 164,842 with a currently-active license — and we link the official lookup on every profile so you can confirm it at the source.
Couldn't verify them — or want a vetted second option?
The Contractors State License Board (CSLB) is always the system of record — confirm status there first. If a contractor won't share a license number, the status comes back inactive, or you just want another quote, get matched with license-checked California pros.
Find a verified California contractor
Browse California home-services pros — many with a board-verified license you can confirm in one click.