Need work done on your home in California?
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California's Contractors State License Board issues trade-specific licenses and requires a license for virtually all work above a small threshold. The CSLB online lookup shows license status, bonds, workers' compensation, and disciplinary history — check it before hiring anyone. Home improvement contracts have state-mandated consumer protections including down payment caps.

Start with the official lookup linked above from the California Contractors State License Board. Confirm the license or registration is active, that the classification matches your project, and check for disciplinary history or complaints. Then verify general liability insurance — and workers' compensation if the company has employees — directly with the insurance carrier, not from a photocopied certificate.

If something goes wrong, your state consumer protection office and the licensing board are the places to file complaints. Keep the written contract, invoices, photos, and all communication.

Permits are issued by city or county building departments, and California's energy code (Title 24) adds state-level requirements for HVAC changeouts, windows, and insulation that trigger permits and third-party verification in many cases.

For permitted work, the contractor should pull the permit in their own name and schedule the required inspections. An inspection is your independent verification that the work meets code — be cautious of anyone who suggests skipping a required permit or asks you to pull an owner permit for work they are performing.

California spans coastal mild zones, hot inland valleys, mountains, and desert. Wildfire defensible space, seismic strapping for water heaters, and energy-code compliance shape projects statewide.

Housing ranges from pre-war bungalows to post-war tract homes to new construction. Older homes in Los Angeles and the Bay Area frequently have unpermitted work, knob-and-tube wiring, or soft-story conditions.

Get at least two or three written, itemized quotes. The contract should name the scope, price, payment schedule tied to milestones, start and completion dates, change-order process, and warranty terms. Tie payments to completed work, keep the final payment meaningful until the punch list is done, and never pay the full amount up front.

Federal consumer guidance from the FTC applies everywhere: be wary of door-to-door solicitation after storms, pressure to sign immediately, demands for large cash payments up front, and contractors who cannot provide a verifiable license, insurance, and local references.