Swinerton Builders

ASB: Asbestos Certification

An add-on certification that allows a contractor to perform asbestos abatement work within the scope of their existing license classification(s). This is not a standalone license.

Not authorized: Can only perform abatement within existing classification scope.

B: General Building Contractor

Authorizes construction of structures including residential, commercial, and industrial buildings requiring at least two unrelated building trades or crafts. May take prime contracts or subcontracts for framing or carpentry. May subcontract all specialty work but must hold the appropriate C license to self-perform specialty trade work.

Not authorized: Cannot self-perform specialty trade work (electrical, plumbing, HVAC, etc.) without holding the corresponding C license. Cannot contract for C-16 Fire Protection or C-57 Well Drilling without the appropriate license or subcontractor.

C-2: Insulation and Acoustical Contractor

Installs insulating media and preformed architectural acoustical materials for temperature and sound control, including batt, blown, rigid board, spray-applied, and acoustical tile or panel systems.

Not authorized: Does not authorize removal of asbestos-containing materials.

C-4: 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 boilers, piping, fittings, valves, gauges, pumps, radiators, fuel oil tanks, chimneys, flues, and associated solar heating equipment.

Not authorized: Does not include warm-air heating or air conditioning systems (see C-20).

C-5: Framing and Rough Carpentry Contractor

Performs form work, framing, and rough carpentry for framed structures, including sub-flooring, siding, exterior staircases and railings, overhead doors, roof decking, truss members, and sheathing.

Not authorized: Does not include finish carpentry or cabinet work (see C-6).

C-6: Cabinet, Millwork and Finish Carpentry Contractor

Makes and installs cabinets, cases, sashes, doors, trims, non-bearing partitions, and other finish carpentry by cutting, surfacing, joining, gluing, and fabricating wood or other products.

Not authorized: Does not include framing or rough carpentry (see C-5).

C-8: 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.

Not authorized: Does not include application of plaster coatings or placing and erecting steel reinforcing bars.

C-9: Drywall Contractor

Lays out and installs gypsum wall board and assemblies, including nonstructural metal framing members, and performs taping and texturing operations to produce a continuous smooth or textured surface.

Not authorized: Does not include lathing and plastering (see C-35).

C-10: Electrical Contractor

Places, installs, erects, or connects electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells, or any part thereof which generate, transmit, transform, or utilize electrical energy.

Not authorized: Electricians working under a C-10 must be certified per CA Labor Code.

C-12: Earthwork and Paving Contractor

Digs, moves, and places earth materials for cuts, fills, excavations, grades, trenches, backfills, and tunnels (if incidental), including use of explosives. Includes mixing, fabricating, and placing paving and surfacing materials.

Not authorized: Does not include operations on sources of water (see Class A).

C-21: Building Moving/Demolition Contractor

Raises, lowers, cribs, underpins, demolishes, moves, or removes structures including their foundations.

Not authorized: Does not include alterations, additions, repairs, or rehabilitation of permanently retained portions of structures.

C-29: Masonry Contractor

Installs concrete units, clay products, concrete and glass block, natural and manufactured stone, terra cotta, and fire brick for structural and non-structural walls, fences, paving, ceramic veneer, and thin brick facing.

C-33: Painting and Decorating Contractor

Prepares surfaces by scraping, sandblasting, or other means and applies paints, papers, textures, fabrics, pigments, oils, varnishes, shellacs, stains, waxes, adhesives, and other coatings for decorating, protecting, fireproofing, and waterproofing.

C-35: Lathing and Plastering Contractor

Coats surfaces with mixtures of sand, gypsum plaster, lime and water, or cement and water, applied by trowel or spray for soundproofing and fireproofing. Installs lath, metal studs, and support materials for plaster coatings.

C-39: Roofing Contractor

Installs products and repairs surfaces that seal, waterproof, and weatherproof structures using asphaltum, pitch, tar, felt, glass fabric, urethane foam, metal roofing systems, shakes, shingles, roof tile, slate, and other roofing materials.

C-50: Reinforcing Steel Contractor

Fabricates, places, and ties steel mesh or steel reinforcing bars of any profile used to reinforce concrete structures.

D28: Doors, Gates and Activating Devices

Installs, maintains, and repairs doors, gates, and their activating devices including automatic openers.