Who Needs A California Contractors License & What Kinds Are There?

In California, anyone who contracts to perform work on a project that is valued at $500 or more for labor and materials must hold a current, valid license from the CSLB. more...

New Online Programs

All online programs are in Adobe PDF format and can be saved to your PC.

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New CSLS Online Practice Exams

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Existing Students

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Welcome to Contractors State License Service

We can help you pass your California Contractors License Exam. We have over 30 contractor license schools in California, with full-service support, to serve you. Contractors State License Service (CSLS) is the largest school in California devoted to the Construction professional. For over 23 years, CSLS has helped its students pass the California contractor licensing exam to become licensed contractors in the State of California. Additionally, we offer complete home study and online contractor’s license programs to help you pass your California contractors license exam. more...

Over 110,000 successful students have been through the CSLS program.

The CSLS Difference

Contractors State License Service is one of the only contractor schools in the state that is run by educators, not lawyers or people mostly interested in the bonding and insurance business. Most importantly, CSLS has continually operated under the oversight of the State of California’s Bureau for Private Post Secondary and Vocational Education (CA BPPVE) since its inception.  CSLS offers comprehensive application processing by trained professionals - we will even submit it to the California State Licensing Board (CSLB) on your behalf. Click here for more information about the CSLS Difference.

CSLS Licensing Classes

We offer licensing classes for all types of contractor licenses, including General Engineering Contractor, General Building Contractor, Specialty Contractor, Insulation and Acoustical Contractor, Framing and Rough Carpentry Contractor, Cabinet, Millwork and Finish Carpentry Contractor, Concrete Contractor, Drywall Contractor, Electrical Contractor, Elevator Contractor, Landscaping Contractor, Warm-Air Heating, Ventilating and Air-Conditioning Contractor, and many others. For a complete list of contractor licenses, click here.

Spanish Classes Available

CSLS Northern California Locations
Concord, Fresno, Modesto, Oakland, Roseville, Sacramento, Salinas, San Jose, San Rafael, Santa Rosa, South San Francisco

CSLS Southern California Locations
Bakersfield, Burbank/Glendale, Canoga Park, Canyon Country, Covina, Indio, Lancaster, Long Beach, Norwalk/Santa Fe Springs, Ontario, Orange, Palm Springs/Cathedral City, Redlands/San Bernardino, Riverside, San Diego, San Marcos, Temecula, Van Nuys, Ventura, Victorville, West Los Angeles