Quick Answer: To file a complaint against a licensed contractor in California: go to cslb.ca.gov and use the online complaint form, or call 1-800-321-CSLB. You need: the contractor’s name, license

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How to File a Complaint Against a Contractor in California — CSLB Guide

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Quick Answer: To file a complaint against a licensed contractor in California: go to cslb.ca.gov and use the online complaint form, or call 1-800-321-CSLB. You need: the contractor’s name, license number, project address, contract amount, and documentation of the issue. The CSLB offers free mediation before formal investigation. For complaints over $10,000 involving licensed contractors, the CSLB’s arbitration program provides binding resolution. The CSLB investigates all complaints against licensed contractors and can suspend or revoke a license for substantiated violations.

Contractor Dispute Resolution Options in California

OptionCostTimelineBinding?
CSLB mediationFree30–60 daysNo (mutual agreement)
CSLB arbitration$60 filing fee60–120 daysYes
Small claims court (under $12,500)$30–$7530–90 daysYes
Superior court (over $12,500)$500–$1,000+6–18 monthsYes
CSLB complaint + investigationFree90–180 daysLicense action

Question: Can I get my money back from an unlicensed contractor in California? Recovering money from an unlicensed contractor is harder than from a licensed one — there’s no CSLB mediation available, no bond to claim against, and you must pursue small claims or superior court. However, California law (B&P Code §7031) allows a homeowner to recover ALL compensation paid to an unlicensed contractor for work that required a license. This is a powerful remedy — you can sue for the full contract amount paid, regardless of whether the work was completed satisfactorily. Always hire CSLB-licensed contractors to protect yourself — verify at cslb.ca.gov before signing any contract.

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