California contractor license lookup
In California, a contractor needs a CSLB license for any job of $1,000 or more (labor and materials). Check any license free on the CSLB website by number, business name or person name. (source: CSLB industry bulletin: AB 2622 implementation (opens in a new tab), source: AB 2622 (Business and Professions Code 7048) (opens in a new tab), source: CSLB Check a License (opens in a new tab))
Check a license on the CSLB website (official site, opens in a new tab)
How: Search by license number (digits only), business name or person name. For "John Smith Construction" type "Smith John Con". (source: CSLB Check a License (opens in a new tab))
Checked against official Contractors State License Board sources. See sources.
1. Who needs a license
$1,000 or more for a job (labor and materials) means a license is needed. (source: CSLB industry bulletin: AB 2622 implementation (opens in a new tab), source: AB 2622 (Business and Professions Code 7048) (opens in a new tab))
A license is needed for any job of $1,000 or more, counting labor, materials and everything else. This rule started on 1 January 2025. Before that the limit was $500. (source: CSLB industry bulletin: AB 2622 implementation (opens in a new tab), source: AB 2622 (Business and Professions Code 7048) (opens in a new tab))
- A license is needed at any price if the job needs a building permit or the person hires any workers. (source: CSLB industry bulletin: AB 2622 implementation (opens in a new tab), source: AB 2622 (Business and Professions Code 7048) (opens in a new tab))
- Splitting a job into smaller contracts to stay under the limit does not count. (source: AB 2622 (Business and Professions Code 7048) (opens in a new tab))
- Unlicensed people may advertise only for jobs under $1,000, and must say they are not licensed. (source: CSLB industry bulletin: AB 2622 implementation (opens in a new tab), source: AB 2622 (Business and Professions Code 7048) (opens in a new tab))
- CSLB's older "What You Should Know" pamphlet still says $500. That figure is out of date. (source: CSLB "What You Should Know" pamphlet (older, says $500) (opens in a new tab))
Home Improvement Salespeople
- Anyone who sells or negotiates home improvement contracts for a licensed contractor must register as a Home Improvement Salesperson (HIS), whatever the dollar amount. (source: CSLB: Before applying for HIS registration (opens in a new tab), source: Business and Professions Code 7152 (opens in a new tab))
- Exceptions include listed officers, partners and qualifiers, buyer-initiated sales in retail stores, appointment setters and service repairpersons. (source: CSLB: Before applying for HIS registration (opens in a new tab))
- Ask to see the HIS registration card and photo ID. (source: CSLB: Finding the right contractor (opens in a new tab))
Penalties for unlicensed work
- Unlicensed contracting is a misdemeanor. First conviction: up to a $5,000 fine and/or 6 months in county jail. (source: Business and Professions Code 7028 (opens in a new tab))
- Second conviction: a fine of $5,000 or 20% of the contract price, whichever is greater, and at least 90 days in jail. (source: Business and Professions Code 7028 (opens in a new tab))
- Third or later: a fine from $5,000 up to the greater of $10,000 or 20% of the contract price, and 90 days to 1 year in jail. (source: Business and Professions Code 7028 (opens in a new tab))
- CSLB can cite unlicensed people up to $15,000 or refer them to the district attorney, but it cannot force them to fix your project. (source: CSLB: After you file your complaint (opens in a new tab))
2. License types and classes
| Class | Name | Covers |
|---|---|---|
| A | General Engineering Contractor | A general engineering contractor is a contractor whose principal contracting business is in connection with fixed works requiring specialized engineering knowledge and skill, including the following divisions or subjects: irrigation, drainage, water power, water supply, flood control, inland waterways, harbors,… (source: CSLB class description: A General Engineering Contractor (opens in a new tab)) |
| B | General Building Contractor | Except as provided in this section, a general building contractor is a contractor whose principal contracting business is in connection with any structure built, being built, or to be built, for the support, shelter, and enclosure of persons, animals, chattels, or movable property of any kind, requiring in its… (source: CSLB class description: B General Building Contractor (opens in a new tab)) |
| B-2 | Residential Remodeling Contractor | A residential remodeling contractor is a contractor whose principal contracting business is in connection with any project to make improvements to, on, or in an existing residential wood frame structure, and the project requires the use of at least three unrelated building trades or crafts for a single contract. (source: CSLB class description: B-2 Residential Remodeling Contractor (opens in a new tab)) |
| C-2 | Insulation and Acoustical Contractor | An insulation and acoustical contractor installs any insulating media and preformed architectural acoustical materials for the purpose of temperature and/or sound control. (source: CSLB class description: C-2 Insulation and Acoustical Contractor (opens in a new tab)) |
| C-4 | Boiler, Hot Water Heating and Steam Fitting Contractor | A boiler, hot-water heating and steam fitting contractor installs, services and repairs power boiler installations, hot-water heating systems and steam fitting, including fire-tube and water-tube steel power boilers and hot-water heating low pressure boilers,steam fitting and piping, fittings, valves, gauges,… (source: CSLB class description: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor (opens in a new tab)) |
| C-5 | Framing and Rough Carpentry Contractor | A framing and rough carpentry contractor performs any form work, framing or rough carpentry necessary to construct framed structures; installs or repairs individual components of framing systems and performs any rough carpentry or associated work, including but not limited to the construction or installation of:… (source: CSLB class description: C-5 Framing and Rough Carpentry Contractor (opens in a new tab)) |
| C-6 | Cabinet, Millwork and Finish Carpentry Contractor | A cabinet, millwork and finish carpentry contractor makes cabinets, cases, sashes, doors, trims, nonbearing partitions and other items of "finish carpentry" by cutting, surfacing, joining, gluing and fabricating wood or other products to provide a functional surface. (source: CSLB class description: C-6 Cabinet, Millwork and Finish Carpentry Contractor (opens in a new tab)) |
| C-7 | Low Voltage Systems Contractor | A communication and low voltage contractor installs, services and maintains all types of communication and low voltage systems which are energy limited and do not exceed 91 volts. (source: CSLB class description: C-7 Low Voltage Systems Contractor (opens in a new tab)) |
| C-8 | Concrete Contractor | A concrete contractor forms, pours, places, finishes and installs specified mass, pavement, flat and other concrete work; and places and sets screeds for pavements or flatwork. (source: CSLB class description: C-8 Concrete Contractor (opens in a new tab)) |
| C-9 | Drywall Contractor | (source: CSLB class description: C-9 Drywall Contractor (opens in a new tab)) |
| C-10 | Electrical Contractor | An electrical contractor places, installs, erects or connects any electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells or any part thereof, which generate, transmit, transform or utilize electrical energy in any form or for any purpose. (source: CSLB class description: C-10 Electrical Contractor (opens in a new tab)) |
| C-11 | Elevator Contractor | An elevator contractor fabricates, erects, installs and repairs elevators, including sheave beams, motors, sheaves, cable and wire rope, guides, cab, counterweights, doors (including sidewalk elevator doors), automatic and manual controls, signal systems, and all other devices and equipment associated with the safe… (source: CSLB class description: C-11 Elevator Contractor (opens in a new tab)) |
3. Required insurance and bonds
Bond
$25,000 bond required. A $25,000 contractor bond (or a $25,000 cashier's check) is needed before you get an active license. This amount applies since 1 January 2023. (source: CSLB: Bond requirements (opens in a new tab), source: CSLB: Before applying for a license (opens in a new tab))
- A Responsible Managing Officer or Employee may also need a separate $25,000 bond of qualifying individual. (source: CSLB: Bond requirements (opens in a new tab))
- LLCs also need a $100,000 employee/worker bond. (source: CSLB: LLC information (opens in a new tab))
- A bond is often not enough to cover a big job or many claims. (source: CSLB: Finding the right contractor (opens in a new tab))
Insurance
- Workers' comp: Required if you have any employees. Otherwise file an exemption. (source: CSLB: Finding the right contractor (opens in a new tab), source: CSLB: Workers' compensation (opens in a new tab))
- General liability: Not generally required, but it must be disclosed in the contract. (source: CSLB: Finding the right contractor (opens in a new tab), source: CSLB: Workers' compensation (opens in a new tab))
- C-8, C-20, C-22, C-39 and C-61/D-49 tree service must carry workers' comp even with no employees. (source: CSLB: Workers' compensation (opens in a new tab))
- LLCs need liability insurance of at least $1 million for up to 5 licensed personnel, plus $100,000 for each extra person, up to $5 million. (source: CSLB: LLC information (opens in a new tab))
Ask for proof of insurance and check the bond on the official lookup before work starts.
4. How to look up a contractor
Check a license on the CSLB website (official site, opens in a new tab)
How: Search by license number (digits only), business name or person name. For "John Smith Construction" type "Smith John Con". (source: CSLB Check a License (opens in a new tab))
You can search by: License number, Business name, Person name, HIS registration. (source: CSLB Check a License (opens in a new tab))
More ways to check
- The license detail page shows bond history and workers' comp information. (source: CSLB: Bond basics (opens in a new tab), source: CSLB: Finding the right contractor (opens in a new tab))
- Ask to see the pocket license and photo ID. The person must match the license. (source: CSLB: Finding the right contractor (opens in a new tab))
- Get 3 or more written bids for the same scope of work. (source: CSLB: Finding the right contractor (opens in a new tab))
- Type only the first 10 to 15 letters of a name. Results show 50 at a time. (source: CSLB Check a License (opens in a new tab))
5. Red flags when hiring
- No license number on the ad, business card, bid or contract. California requires it. (source: CSLB: Finding the right contractor (opens in a new tab))
- Their photo ID does not match the pocket license. (source: CSLB: Finding the right contractor (opens in a new tab))
- No fixed business address ("they work out of the back of a pickup truck"). (source: CSLB: Finding the right contractor (opens in a new tab))
- They have employees but no workers' comp. (source: CSLB: Finding the right contractor (opens in a new tab))
- A bid that is much lower than the others. (source: CSLB: Finding the right contractor (opens in a new tab))
- Asking for a down payment of more than 10% of the price or $1,000, whichever is less. (source: CSLB: Contracts and binding agreements (opens in a new tab))
6. Consumer protections and complaints
Down payment limit
- A down payment can be no more than 10% of the contract price or $1,000, whichever is less. (source: CSLB: Contracts and binding agreements (opens in a new tab))
How to file a complaint
- CSLB has forms for a general complaint, a lead referral for an active job site, advertising complaints, building-permit violations and solar complaints. (source: CSLB: Filing a complaint (opens in a new tab))
- File within 4 years of the problem (up to 10 years for some hidden structural defects). (source: CSLB: Filing a complaint (opens in a new tab), source: CSLB: After you file your complaint (opens in a new tab))
- Tell the contractor about the problem in writing first. (source: CSLB: Filing a complaint (opens in a new tab), source: CSLB: After you file your complaint (opens in a new tab))
- CSLB does not guarantee you get money back. For that, use small claims or another court. (source: CSLB: Filing a complaint (opens in a new tab), source: CSLB: After you file your complaint (opens in a new tab))
7. Sources and last verified
Last verified: . Next check due: . Every fact on this page links to one of these official pages. How we verify.
- CSLB Check a License (opens in a new tab) (checked Oct 24, 2026)
- CSLB industry bulletin: AB 2622 implementation (opens in a new tab) (checked Oct 24, 2026)
- AB 2622 (Business and Professions Code 7048) (opens in a new tab) (checked Oct 24, 2026)
- CSLB "What You Should Know" pamphlet (older, says $500) (opens in a new tab) (checked Oct 24, 2026)
- CSLB Licensing Classifications (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Before applying for a license (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Experience for the exam (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Applicants (opens in a new tab) (checked Oct 24, 2026)
- CSLB Fees (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Qualifying for waivers (opens in a new tab) (checked Oct 24, 2026)
- Business and Professions Code 7065.1 (opens in a new tab) (checked Oct 24, 2026)
- CSLB: General renewal information (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Bond requirements (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Bond basics (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Finding the right contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Contracts and binding agreements (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Workers' compensation (opens in a new tab) (checked Oct 24, 2026)
- CSLB: LLC information (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Before applying for HIS registration (opens in a new tab) (checked Oct 24, 2026)
- Business and Professions Code 7152 (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Reciprocity (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Application for original license (waiver) (opens in a new tab) (checked Oct 24, 2026)
- Business and Professions Code 7028 (opens in a new tab) (checked Oct 24, 2026)
- CSLB: After you file your complaint (opens in a new tab) (checked Oct 24, 2026)
- CSLB: Filing a complaint (opens in a new tab) (checked Oct 24, 2026)
- DIR Electrician Certification FAQ (opens in a new tab) (checked Oct 24, 2026)
- DIR electrician certification categories (opens in a new tab) (checked Oct 24, 2026)
- California Labor Code 108.2 (opens in a new tab) (checked Oct 24, 2026)
- EPA Section 608 technician certification (opens in a new tab) (checked Oct 24, 2026)
- 40 CFR Part 82 Subpart F (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: A General Engineering Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: B General Building Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: B-2 Residential Remodeling Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-2 Insulation and Acoustical Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-5 Framing and Rough Carpentry Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-6 Cabinet, Millwork and Finish Carpentry Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-7 Low Voltage Systems Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-8 Concrete Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-9 Drywall Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-10 Electrical Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-11 Elevator Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-12 Earthwork and Paving Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-13 Fencing Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-15 Flooring and Floor Covering Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-16 Fire Protection Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-17 Glazing Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-21 Building Moving/Demolition Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-22 Asbestos Abatement Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-23 Ornamental Metal Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-27 Landscaping Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-28 Lock and Security Equipment Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-29 Masonry Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-31 Construction Zone Traffic Control Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-32 Parking and Highway Improvement Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-33 Painting and Decorating Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-34 Pipeline Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-35 Lathing and Plastering Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-36 Plumbing Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-38 Refrigeration Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-39 Roofing Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-42 Sanitation System Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-43 Sheet Metal Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-45 Sign Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-46 Solar Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-47 General Manufactured Housing Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-49 Tree and Palm Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-50 Reinforcing Steel Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-51 Structural Steel Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-53 Swimming Pool Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-54 Ceramic and Mosaic Tile Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-55 Water Conditioning Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-57 Well Drilling Contractor (opens in a new tab) (checked Oct 24, 2026)
- CSLB class description: C-60 Welding Contractor (opens in a new tab) (checked Oct 24, 2026)
Spot something out of date? Email [email protected].
Common questions
Do I need a contractor license in California for a small job?
Yes, if the job is $1,000 or more in labor and materials, or needs a building permit, or you hire workers. The limit was $500 before 1 January 2025. (source: CSLB industry bulletin: AB 2622 implementation (opens in a new tab), source: AB 2622 (Business and Professions Code 7048) (opens in a new tab))
How much can a California contractor ask for up front?
The down payment can be no more than 10% of the contract price or $1,000, whichever is less. One exception is a contractor with a Blanket Performance and Payment Bond. (source: CSLB: Contracts and binding agreements (opens in a new tab))
What happens to unlicensed contractors in California?
Unlicensed contracting is a misdemeanor. A first conviction can mean up to a $5,000 fine and/or 6 months in county jail. CSLB can also cite them up to $15,000. (source: Business and Professions Code 7028 (opens in a new tab), source: CSLB: After you file your complaint (opens in a new tab))