The CSLB complaint process Homeowners, contractors, subcontractors, and employees can file complaints about both licensed and unlicensed contractors. These complaints can be for anything from failure to complete a project, to payment disputes, and false advertising.
To Report Complaints: You can file a complaint with the Contractors State License Board (CSLB) online at or by mail using their Construction Complaint form.
There are three ways that you can file a complaint: Call to have a Complaint Form mailed to you 1-800-321-CSLB (2752), OR. Use the On-line Complaint Form, OR. Download and Print a Complaint Form.
You can look up your contractor's license with the California Contractors State License Board at cslb.ca or by calling 800-321-2752.
CSLB (2752). Contact the Contractors State License Board to verify the information provided by the bidding contractor by logging onto the Internet at .cslb.ca or by calling 800.321. CSLB (2752).
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 285,000 contractors in 45 different classifications.
In contrast, large contractors have greater financial resources, permanent staff with specialized skills, technology capabilities like BIM modeling, and ability to take on multiple large projects simultaneously through economies of scale.
The California Secretary of State business license lookup lets you know if a company is licensed. The search is available on the Secretary of State's website. You can also conduct a California Secretary of State business search above by entering a license number, person's name, or company name and selecting a state.
Contractors State License Board. 7. When does a person need a contractors license? In California, anyone who contracts to perform work that is valued at $500 or more for materials and labor must hold a current, valid license from the Contractors State License Board in the specialty for which he or she is contracting.
How can I verify that my contractor is state-licensed? You can look up your contractor's license with the California Contractors State License Board at cslb.ca or by calling 800-321-2752. Then, verify that your contractor has a photo ID that matches the name on their license.