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Welcome to the Contractors State License Board

The Contractors State License Board(CSLB) protects California consumers by licensing and regulating the state's construction industry. CSLB was established in 1929 and today licenses about 290,000 contractors in 44 different classifications.


Reminder about Bond Increase as of January 1, 2023

On January 1, 2023, the contractor license bond, bond of qualifying individual, and disciplinary bond, increased to $25,000 as a result of Senate Bill 607. See more about SB 607 in these Industry Bulletins from October 2022 and December 2021. A list of surety companies with a blanket endorsement on file with CSLB can be found on CSLB’s Bond Requirements page.

Solar Consumers – Important Reminder

Contractors may not accept more than 10% of the contract price or $1,000, whichever is less, as a down payment on a home improvement contract (including for a solar energy system). A contractor cannot request or accept progress payment(s) exceeding the value of work performed or materials delivered on a home improvement contract.

Solar Energy System Contracting Tips

If you’re considering installing a residential solar energy system, there is important information you need to consider so you can be “Solar Smart.” More details can be found on CSLB’s Solar Smart page.

California Licensed Contractor Stats - As of


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Change in Last 12 Months