Contractor licenses by trade

California licenses contractors by classification. A license can hold several. Pick one to see what it covers and find licensed contractors near you.

General contractors

• A General engineering contractorFixed works that need specialized engineering knowledge: highways, bridges, dams, pipelines, sewers, grading, excavation and large site work.14,671 active
• B General building contractorBuildings of any kind. A B contractor runs projects involving at least two unrelated trades, and can take a framing or carpentry job on its own.103,099 active
• B-2 Residential remodeling contractorRemodeling existing homes: jobs with at least three unrelated trades, without structural, plumbing, electrical or HVAC work beyond what the rules allow.1,676 active

Specialty contractors (C classes)

• C-2 Insulation and acoustical contractorThermal and sound insulation and acoustical ceilings and panels.1,174 active
• C-4 Boiler, hot water heating and steam fitting contractorBoilers, steam and hot-water heating systems and their piping.688 active
• C-5 Framing and rough carpentry contractorFraming walls, floors and roofs, and other rough carpentry.1,027 active
• C-6 Cabinet, millwork and finish carpentry contractorCabinets, built-ins, trim, doors and other finish carpentry.4,216 active
• C-7 Low voltage systems contractorLow-voltage wiring: phone, data, sound, security and similar systems (not fire alarms).4,666 active
• C-8 Concrete contractorConcrete foundations, slabs, driveways, walkways and other poured or formed concrete.5,296 active
• C-9 Drywall contractorHanging, taping and finishing drywall.3,177 active
• C-10 Electrical contractorElectrical wiring, panels, fixtures and equipment of any kind, including rooftop solar systems.28,071 active
• C-11 Elevator contractorInstalling and servicing elevators, escalators, lifts and dumbwaiters.213 active
• C-12 Earthwork and paving contractorGrading, excavation, trenching and asphalt or concrete paving.2,422 active
• C-13 Fencing contractorFences and gates of wood, metal, vinyl or masonry.1,822 active
• C-15 Flooring and floor covering contractorWood, vinyl, laminate, carpet and other floor coverings.6,700 active
• C-16 Fire protection contractorFire sprinkler systems and other fixed fire-protection systems.2,207 active
• C-17 Glazing contractorWindows, glass doors, shower enclosures, mirrors and storefront glass.3,038 active
• C-20 HVAC contractor (warm-air heating, ventilating and air conditioning)Furnaces, air conditioners, heat pumps, ducts and ventilation.11,618 active
• C-21 Building moving and demolition contractorDemolishing buildings and moving whole structures.1,809 active
• C-22 Asbestos abatement contractorRemoving and encapsulating asbestos-containing materials.312 active
• C-23 Ornamental metal contractorMetal railings, gates, grilles and decorative metalwork.1,061 active
• C-27 Landscaping contractorPlanting, irrigation, hardscape, walls under 3 feet, decks and patios as part of a landscape.12,084 active
• C-28 Lock and security equipment contractorLocks, safes, vaults and access-control hardware.365 active
• C-29 Masonry contractorBrick, block and stone work, including masonry walls.2,026 active
• C-31 Construction zone traffic control contractorSigns, cones and barriers that route traffic around road work.473 active
• C-32 Parking and highway improvement contractorStriping, curbs, guardrails, signs and markings for roads and parking lots.497 active
• C-33 Painting and decorating contractorInterior and exterior painting, wall coverings and coatings.15,431 active
• C-34 Pipeline contractorPipelines for water, gas, oil and sewage outside buildings.538 active
• C-35 Lathing and plastering contractorLath, plaster and stucco.1,810 active
• C-36 Plumbing contractorWater, gas, drain and sewer piping, fixtures and water heaters.17,574 active
• C-38 Refrigeration contractorCommercial refrigeration: walk-in coolers, freezers and refrigerated cases.1,592 active
• C-39 Roofing contractorInstalling, repairing and replacing roofs and roof coverings of any material.5,561 active
• C-42 Sanitation system contractorSeptic tanks, leach fields and sewer connections.951 active
• C-43 Sheet metal contractorSheet metal ducts, flashing, gutters and fabrication.1,269 active
• C-45 Sign contractorBuilding, installing and servicing signs, including electric signs.858 active
• C-46 Solar contractorSolar electric (photovoltaic) and solar water-heating systems.1,137 active
• C-47 General manufactured housing contractorInstalling and repairing manufactured and mobile homes.445 active
• C-49 Tree and palm contractorPlanting, pruning, trimming and removing trees and palms.635 active
• C-50 Reinforcing steel contractorPlacing rebar and other steel reinforcement for concrete.249 active
• C-51 Structural steel contractorErecting steel beams, columns and other structural steel.1,506 active
• C-53 Swimming pool contractorBuilding pools and spas, including their plumbing and equipment.2,839 active
• C-54 Ceramic and mosaic tile contractorTile floors, walls, showers and countertops.6,060 active
• C-55 Water conditioning contractorWater softeners, filters and other water-treatment equipment.299 active
• C-57 Well drilling contractorDrilling water wells and installing well pumps.710 active
• C-60 Welding contractorWelding and cutting metal on construction projects.1,064 active

Limited specialty (C-61)

• C-61/D-3 Limited specialty: awningsA narrow trade the board licenses under the C-61 limited specialty class: awnings.520 active
• C-61/D-4 Limited specialty: central vacuum systemsA narrow trade the board licenses under the C-61 limited specialty class: central vacuum systems.79 active
• C-61/D-6 Limited specialty: concrete related servicesA narrow trade the board licenses under the C-61 limited specialty class: concrete related services.1,432 active
• C-61/D-7 Limited specialty: conveyors and cranesA narrow trade the board licenses under the C-61 limited specialty class: conveyors and cranes. This is an older subcategory the board no longer issues; licenses that hold it keep it.9 active
• C-61/D-8 Limited specialty: doors and door servicesA narrow trade the board licenses under the C-61 limited specialty class: doors and door services. This is an older subcategory the board no longer issues; licenses that hold it keep it.17 active
• C-61/D-9 Limited specialty: drilling, blasting and oil field workA narrow trade the board licenses under the C-61 limited specialty class: drilling, blasting and oil field work.155 active
• C-61/D-10 Limited specialty: elevated floorsA narrow trade the board licenses under the C-61 limited specialty class: elevated floors.25 active
• C-61/D-12 Limited specialty: synthetic productsA narrow trade the board licenses under the C-61 limited specialty class: synthetic products.1,724 active
• C-61/D-13 Limited specialty: fire extinguisher systemsA narrow trade the board licenses under the C-61 limited specialty class: fire extinguisher systems. This is an older subcategory the board no longer issues; licenses that hold it keep it.1 active
• C-61/D-15 Limited specialty: furnacesA narrow trade the board licenses under the C-61 limited specialty class: furnaces. This is an older subcategory the board no longer issues; licenses that hold it keep it.1 active
• C-61/D-16 Limited specialty: hardware, locks and safesA narrow trade the board licenses under the C-61 limited specialty class: hardware, locks and safes.274 active
• C-61/D-17 Limited specialty: industrial insulationA narrow trade the board licenses under the C-61 limited specialty class: industrial insulation. This is an older subcategory the board no longer issues; licenses that hold it keep it.3 active
• C-61/D-19 Limited specialty: land clearingA narrow trade the board licenses under the C-61 limited specialty class: land clearing. This is an older subcategory the board no longer issues; licenses that hold it keep it.1 active
• C-61/D-20 Limited specialty: lead burning and fabricationA narrow trade the board licenses under the C-61 limited specialty class: lead burning and fabrication. This is an older subcategory the board no longer issues; licenses that hold it keep it.2 active
• C-61/D-21 Limited specialty: machinery and pumpsA narrow trade the board licenses under the C-61 limited specialty class: machinery and pumps.1,034 active
• C-61/D-22 Limited specialty: marbleA narrow trade the board licenses under the C-61 limited specialty class: marble. This is an older subcategory the board no longer issues; licenses that hold it keep it.10 active
• C-61/D-23 Limited specialty: medical gas systemsA narrow trade the board licenses under the C-61 limited specialty class: medical gas systems. This is an older subcategory the board no longer issues; licenses that hold it keep it.3 active
• C-61/D-24 Limited specialty: metal productsA narrow trade the board licenses under the C-61 limited specialty class: metal products.809 active
• C-61/D-25 Limited specialty: mirrors and fixed glassA narrow trade the board licenses under the C-61 limited specialty class: mirrors and fixed glass. This is an older subcategory the board no longer issues; licenses that hold it keep it.5 active
• C-61/D-27 Limited specialty: movable partitionsA narrow trade the board licenses under the C-61 limited specialty class: movable partitions. This is an older subcategory the board no longer issues; licenses that hold it keep it.4 active
• C-61/D-28 Limited specialty: doors, gates and activating devicesA narrow trade the board licenses under the C-61 limited specialty class: doors, gates and activating devices.2,794 active
• C-61/D-29 Limited specialty: paperhangingA narrow trade the board licenses under the C-61 limited specialty class: paperhanging.169 active
• C-61/D-30 Limited specialty: pile driving and pressure foundation jackingA narrow trade the board licenses under the C-61 limited specialty class: pile driving and pressure foundation jacking.89 active
• C-61/D-31 Limited specialty: pole installation and maintenanceA narrow trade the board licenses under the C-61 limited specialty class: pole installation and maintenance.82 active
• C-61/D-32 Limited specialty: power nailing and fasteningA narrow trade the board licenses under the C-61 limited specialty class: power nailing and fastening. This is an older subcategory the board no longer issues; licenses that hold it keep it.1 active
• C-61/D-34 Limited specialty: prefabricated equipmentA narrow trade the board licenses under the C-61 limited specialty class: prefabricated equipment.1,356 active
• C-61/D-35 Limited specialty: pool and spa maintenanceA narrow trade the board licenses under the C-61 limited specialty class: pool and spa maintenance.1,621 active
• C-61/D-36 Limited specialty: rigging and rig buildingA narrow trade the board licenses under the C-61 limited specialty class: rigging and rig building. This is an older subcategory the board no longer issues; licenses that hold it keep it.5 active
• C-61/D-37 Limited specialty: safes and vaultsA narrow trade the board licenses under the C-61 limited specialty class: safes and vaults. This is an older subcategory the board no longer issues; licenses that hold it keep it.1 active
• C-61/D-38 Limited specialty: sand and water blastingA narrow trade the board licenses under the C-61 limited specialty class: sand and water blasting.424 active
• C-61/D-39 Limited specialty: scaffoldingA narrow trade the board licenses under the C-61 limited specialty class: scaffolding.291 active
• C-61/D-40 Limited specialty: service station equipment and maintenanceA narrow trade the board licenses under the C-61 limited specialty class: service station equipment and maintenance.142 active
• C-61/D-41 Limited specialty: siding and deckingA narrow trade the board licenses under the C-61 limited specialty class: siding and decking.409 active
• C-61/D-42 Limited specialty: non-electrical sign installationA narrow trade the board licenses under the C-61 limited specialty class: non-electrical sign installation.424 active
• C-61/D-43 Limited specialty: soil groutingA narrow trade the board licenses under the C-61 limited specialty class: soil grouting. This is an older subcategory the board no longer issues; licenses that hold it keep it.2 active
• C-61/D-44 Limited specialty: sprinklersA narrow trade the board licenses under the C-61 limited specialty class: sprinklers. This is an older subcategory the board no longer issues; licenses that hold it keep it.2 active
• C-61/D-47 Limited specialty: tennis court surfacingA narrow trade the board licenses under the C-61 limited specialty class: tennis court surfacing. This is an older subcategory the board no longer issues; licenses that hold it keep it.4 active
• C-61/D-48 Limited specialty: theater and school equipmentA narrow trade the board licenses under the C-61 limited specialty class: theater and school equipment. This is an older subcategory the board no longer issues; licenses that hold it keep it.9 active
• C-61/D-49 Limited specialty: tree serviceA narrow trade the board licenses under the C-61 limited specialty class: tree service. This is an older subcategory the board no longer issues; licenses that hold it keep it.2,654 active
• C-61/D-50 Limited specialty: suspended ceilingsA narrow trade the board licenses under the C-61 limited specialty class: suspended ceilings.137 active
• C-61/D-51 Limited specialty: waterproofingA narrow trade the board licenses under the C-61 limited specialty class: waterproofing. This is an older subcategory the board no longer issues; licenses that hold it keep it.49 active
• C-61/D-52 Limited specialty: window coveringsA narrow trade the board licenses under the C-61 limited specialty class: window coverings.1,450 active
• C-61/D-53 Limited specialty: wood tanksA narrow trade the board licenses under the C-61 limited specialty class: wood tanks.16 active
• C-61/D-54 Limited specialty: rockscapingA narrow trade the board licenses under the C-61 limited specialty class: rockscaping. This is an older subcategory the board no longer issues; licenses that hold it keep it.1 active
• C-61/D-55 Limited specialty: blastingA narrow trade the board licenses under the C-61 limited specialty class: blasting. This is an older subcategory the board no longer issues; licenses that hold it keep it.1 active
• C-61/D-56 Limited specialty: trenching onlyA narrow trade the board licenses under the C-61 limited specialty class: trenching only.156 active
• C-61/D-59 Limited specialty: hydroseed sprayingA narrow trade the board licenses under the C-61 limited specialty class: hydroseed spraying.47 active
• C-61/D-62 Limited specialty: air and water balancingA narrow trade the board licenses under the C-61 limited specialty class: air and water balancing.117 active
• C-61/D-63 Limited specialty: construction clean-upA narrow trade the board licenses under the C-61 limited specialty class: construction clean-up.843 active
• C-61/D-64 Limited specialty: non-specializedA narrow trade the board licenses under the C-61 limited specialty class: non-specialized.650 active
• C-61/D-65 Limited specialty: weatherization and energy conservationA narrow trade the board licenses under the C-61 limited specialty class: weatherization and energy conservation.76 active

Certifications

• ASB Asbestos certificationCertified to do asbestos-related work under another license class (together with Cal/OSHA registration for larger jobs).775 active
• HAZ Hazardous substance removal certificationCertified to remove hazardous substances, such as from underground tanks.1,779 active

Classification names from the CSLB. Summaries are plain-English simplifications, not the legal definitions.