Last verified: Next check due: 75 official sources How we verify

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))

Home Improvement Salespeople

Penalties for unlicensed work

2. License types and classes

ClassNameCovers
AGeneral Engineering ContractorA 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))
BGeneral Building ContractorExcept 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-2Residential Remodeling ContractorA 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-2Insulation and Acoustical ContractorAn 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-4Boiler, Hot Water Heating and Steam Fitting ContractorA 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-5Framing and Rough Carpentry ContractorA 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-6Cabinet, Millwork and Finish Carpentry ContractorA 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-7Low Voltage Systems ContractorA 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-8Concrete ContractorA 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-9Drywall Contractor (source: CSLB class description: C-9 Drywall Contractor (opens in a new tab))
C-10Electrical ContractorAn 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-11Elevator ContractorAn 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))

See all 48 California license classes

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))

Insurance

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

Full checklist: how to check a contractor

5. Red flags when hiring

6. Consumer protections and complaints

Down payment limit

How to file a complaint

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.

  1. CSLB Check a License (opens in a new tab) (checked Oct 24, 2026)
  2. CSLB industry bulletin: AB 2622 implementation (opens in a new tab) (checked Oct 24, 2026)
  3. AB 2622 (Business and Professions Code 7048) (opens in a new tab) (checked Oct 24, 2026)
  4. CSLB "What You Should Know" pamphlet (older, says $500) (opens in a new tab) (checked Oct 24, 2026)
  5. CSLB Licensing Classifications (opens in a new tab) (checked Oct 24, 2026)
  6. CSLB: Before applying for a license (opens in a new tab) (checked Oct 24, 2026)
  7. CSLB: Experience for the exam (opens in a new tab) (checked Oct 24, 2026)
  8. CSLB: Applicants (opens in a new tab) (checked Oct 24, 2026)
  9. CSLB Fees (opens in a new tab) (checked Oct 24, 2026)
  10. CSLB: Qualifying for waivers (opens in a new tab) (checked Oct 24, 2026)
  11. Business and Professions Code 7065.1 (opens in a new tab) (checked Oct 24, 2026)
  12. CSLB: General renewal information (opens in a new tab) (checked Oct 24, 2026)
  13. CSLB: Bond requirements (opens in a new tab) (checked Oct 24, 2026)
  14. CSLB: Bond basics (opens in a new tab) (checked Oct 24, 2026)
  15. CSLB: Finding the right contractor (opens in a new tab) (checked Oct 24, 2026)
  16. CSLB: Contracts and binding agreements (opens in a new tab) (checked Oct 24, 2026)
  17. CSLB: Workers' compensation (opens in a new tab) (checked Oct 24, 2026)
  18. CSLB: LLC information (opens in a new tab) (checked Oct 24, 2026)
  19. CSLB: Before applying for HIS registration (opens in a new tab) (checked Oct 24, 2026)
  20. Business and Professions Code 7152 (opens in a new tab) (checked Oct 24, 2026)
  21. CSLB: Reciprocity (opens in a new tab) (checked Oct 24, 2026)
  22. CSLB: Application for original license (waiver) (opens in a new tab) (checked Oct 24, 2026)
  23. Business and Professions Code 7028 (opens in a new tab) (checked Oct 24, 2026)
  24. CSLB: After you file your complaint (opens in a new tab) (checked Oct 24, 2026)
  25. CSLB: Filing a complaint (opens in a new tab) (checked Oct 24, 2026)
  26. DIR Electrician Certification FAQ (opens in a new tab) (checked Oct 24, 2026)
  27. DIR electrician certification categories (opens in a new tab) (checked Oct 24, 2026)
  28. California Labor Code 108.2 (opens in a new tab) (checked Oct 24, 2026)
  29. EPA Section 608 technician certification (opens in a new tab) (checked Oct 24, 2026)
  30. 40 CFR Part 82 Subpart F (opens in a new tab) (checked Oct 24, 2026)
  31. CSLB class description: A General Engineering Contractor (opens in a new tab) (checked Oct 24, 2026)
  32. CSLB class description: B General Building Contractor (opens in a new tab) (checked Oct 24, 2026)
  33. CSLB class description: B-2 Residential Remodeling Contractor (opens in a new tab) (checked Oct 24, 2026)
  34. CSLB class description: C-2 Insulation and Acoustical Contractor (opens in a new tab) (checked Oct 24, 2026)
  35. CSLB class description: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor (opens in a new tab) (checked Oct 24, 2026)
  36. CSLB class description: C-5 Framing and Rough Carpentry Contractor (opens in a new tab) (checked Oct 24, 2026)
  37. CSLB class description: C-6 Cabinet, Millwork and Finish Carpentry Contractor (opens in a new tab) (checked Oct 24, 2026)
  38. CSLB class description: C-7 Low Voltage Systems Contractor (opens in a new tab) (checked Oct 24, 2026)
  39. CSLB class description: C-8 Concrete Contractor (opens in a new tab) (checked Oct 24, 2026)
  40. CSLB class description: C-9 Drywall Contractor (opens in a new tab) (checked Oct 24, 2026)
  41. CSLB class description: C-10 Electrical Contractor (opens in a new tab) (checked Oct 24, 2026)
  42. CSLB class description: C-11 Elevator Contractor (opens in a new tab) (checked Oct 24, 2026)
  43. CSLB class description: C-12 Earthwork and Paving Contractor (opens in a new tab) (checked Oct 24, 2026)
  44. CSLB class description: C-13 Fencing Contractor (opens in a new tab) (checked Oct 24, 2026)
  45. CSLB class description: C-15 Flooring and Floor Covering Contractor (opens in a new tab) (checked Oct 24, 2026)
  46. CSLB class description: C-16 Fire Protection Contractor (opens in a new tab) (checked Oct 24, 2026)
  47. CSLB class description: C-17 Glazing Contractor (opens in a new tab) (checked Oct 24, 2026)
  48. CSLB class description: C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor (opens in a new tab) (checked Oct 24, 2026)
  49. CSLB class description: C-21 Building Moving/Demolition Contractor (opens in a new tab) (checked Oct 24, 2026)
  50. CSLB class description: C-22 Asbestos Abatement Contractor (opens in a new tab) (checked Oct 24, 2026)
  51. CSLB class description: C-23 Ornamental Metal Contractor (opens in a new tab) (checked Oct 24, 2026)
  52. CSLB class description: C-27 Landscaping Contractor (opens in a new tab) (checked Oct 24, 2026)
  53. CSLB class description: C-28 Lock and Security Equipment Contractor (opens in a new tab) (checked Oct 24, 2026)
  54. CSLB class description: C-29 Masonry Contractor (opens in a new tab) (checked Oct 24, 2026)
  55. CSLB class description: C-31 Construction Zone Traffic Control Contractor (opens in a new tab) (checked Oct 24, 2026)
  56. CSLB class description: C-32 Parking and Highway Improvement Contractor (opens in a new tab) (checked Oct 24, 2026)
  57. CSLB class description: C-33 Painting and Decorating Contractor (opens in a new tab) (checked Oct 24, 2026)
  58. CSLB class description: C-34 Pipeline Contractor (opens in a new tab) (checked Oct 24, 2026)
  59. CSLB class description: C-35 Lathing and Plastering Contractor (opens in a new tab) (checked Oct 24, 2026)
  60. CSLB class description: C-36 Plumbing Contractor (opens in a new tab) (checked Oct 24, 2026)
  61. CSLB class description: C-38 Refrigeration Contractor (opens in a new tab) (checked Oct 24, 2026)
  62. CSLB class description: C-39 Roofing Contractor (opens in a new tab) (checked Oct 24, 2026)
  63. CSLB class description: C-42 Sanitation System Contractor (opens in a new tab) (checked Oct 24, 2026)
  64. CSLB class description: C-43 Sheet Metal Contractor (opens in a new tab) (checked Oct 24, 2026)
  65. CSLB class description: C-45 Sign Contractor (opens in a new tab) (checked Oct 24, 2026)
  66. CSLB class description: C-46 Solar Contractor (opens in a new tab) (checked Oct 24, 2026)
  67. CSLB class description: C-47 General Manufactured Housing Contractor (opens in a new tab) (checked Oct 24, 2026)
  68. CSLB class description: C-49 Tree and Palm Contractor (opens in a new tab) (checked Oct 24, 2026)
  69. CSLB class description: C-50 Reinforcing Steel Contractor (opens in a new tab) (checked Oct 24, 2026)
  70. CSLB class description: C-51 Structural Steel Contractor (opens in a new tab) (checked Oct 24, 2026)
  71. CSLB class description: C-53 Swimming Pool Contractor (opens in a new tab) (checked Oct 24, 2026)
  72. CSLB class description: C-54 Ceramic and Mosaic Tile Contractor (opens in a new tab) (checked Oct 24, 2026)
  73. CSLB class description: C-55 Water Conditioning Contractor (opens in a new tab) (checked Oct 24, 2026)
  74. CSLB class description: C-57 Well Drilling Contractor (opens in a new tab) (checked Oct 24, 2026)
  75. 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))