The Specialty Trade Contractors subsector comprises establishments whose primary activity is performing specific activities (e.g., pouring concrete, site preparation, plumbing, painting, and electrical work) involved in building construction or other activities that are similar for all types of construction, but that are not responsible for the entire project.

The work performed may include new work, additions, alterations, maintenance, and repairs. The production work performed by establishments in this subsector is usually subcontracted from establishments of the general contractor type or for-sale builders, but especially in remodeling and repair construction, work also may be done directly for the owner of the property.

Specialty trade contractors usually perform most of their work at the construction site, although they may have shops where they perform prefabrication and other work. Establishments primarily engaged in preparing sites for new construction are also included in this subsector.

There are substantial differences in types of equipment, work force skills, and other inputs required by specialty trade contractors. Establishments in this subsector are classified based on the underlying production function for the specialty trade in which they specialize. Throughout the Specialty Trade Contractors subsector, establishments commonly provide both the parts and labor required to complete work. For example, electrical contractors supply the current-carrying and noncurrent-carrying wiring devices that are required to install a circuit. Plumbing, heating,
and air-conditioning contractors also supply the parts required to complete a contract.

 

Foundation, Structure, and Building Exterior Contractors
This industry group comprises establishments primarily engaged in the specialty trades needed to complete the basic structure (i.e., foundation, frame, and shell) of buildings. The work performed may include new work, additions, alterations, maintenance, and repairs.

Poured Concrete Foundation and Structure Contractors
This industry comprises establishments primarily engaged in pouring and finishing concrete foundations and structural elements. This industry also includes establishments performing grout and shotcrete work. The work performed may include new work, additions, alterations, maintenance, and repairs.
Illustrative Examples
Concrete pouring and finishing
Gunite contractors
Concrete pumping (i.e., placement)
Mud-jacking contractors
Concrete work (except paving)
Shotcrete contractors
Footing and foundation concrete contractors
Constructing sidewalks
Concrete sealing, coating, waterproofing, or damp proofing

Structural Steel and Precast Concrete Contractors
This industry comprises establishments primarily engaged in (1) erecting and assembling structural parts made from steel or precast concrete (e.g., steel beams, structural steel components, and similar products of precast concrete) and/or (2) assembling and installing other steel construction products (e.g., steel rods, bars, rebar, mesh, and cages) to reinforce poured-in-place concrete.
Illustrative Examples
Concrete product (e.g., structural precast, structural prestressed) installation
Rebar contractors
Erecting structural steel
Reinforcing steel contractors
Placing and tying reinforcing rod at a construction site
Structural steel contractors
Precast concrete panel, slab, or form installation

Framing Contractors
This industry comprises establishments primarily engaged in structural framing and sheathing using materials other than structural steel or concrete.
Illustrative Examples
Building framing (except structural steel)
Post framing contractors
Foundation, building, wood, contractors
Steel framing contractors
Framing contractors
Wood frame component (e.g., truss) fabrication on site

Masonry Contractors
This industry comprises establishments primarily engaged in masonry work, stone setting, bricklaying, and other stone work.
Illustrative Examples
Block laying
Marble, granite, and slate, exterior, contractors
Bricklaying
Masonry pointing, cleaning, or caulking
Concrete block laying
Stucco contractors
Foundation (e.g., brick, block, stone), building, contractors
Interior marble, granite, and slate work
Tile and Terrazzo
Laying precast stones or bricks for patios, sidewalks, and driveways; or paving residential driveways, commercial parking lots and other private parking areas

Glass and Glazing Contractors
This industry comprises establishments primarily engaged in installing glass panes in prepared openings (i.e., glazing work) and other glass work for buildings.
Illustrative Examples
Decorative glass and mirror installation
Glazing contractors
Glass cladding installation
Stained glass installation
Glass coating and tinting (except automotive) contractors
Window pane or sheet installation
Glass installation (except automotive) contractors

Roofing Contractors
This industry comprises establishments primarily engaged in roofing. This industry also includes establishments treating roofs (i.e., spraying, painting, or coating) and installing skylights.
Illustrative Examples
Painting, spraying, or coating, roof
Sheet metal roofing installation
Shake and shingle, roof, installation
Skylight installation
Installing downspouts, gutters, fascia, and soffits

Siding Contractors
This industry comprises establishments primarily engaged in installing siding of wood, aluminum, vinyl, or other exterior finish material (except brick, stone, stucco, or curtain wall). This industry also includes establishments installing gutters and downspouts.
Illustrative Examples
Downspout, gutter, and gutter guard installation
Fascia and soffit installation
Siding (e.g., vinyl, wood, aluminum) installation

Other Foundation, Structure, and Building Exterior Contractors
This industry comprises establishments primarily engaged in building foundation and structure trades work (except poured concrete, structural steel, precast concrete, framing, masonry, glass and glazing, roofing, and siding).
Illustrative Examples
Curtain wall, metal, installation
Forms for poured concrete, erecting and dismantling
Welding, on-site, contractors
Ornamental metal work installation
Fire escape installation
Decorative steel and wrought iron work installation

 

Building Equipment Contractors
This industry group comprises establishments primarily engaged in installing or servicing equipment that forms part of a building mechanical system (e.g., electricity, water, heating, and cooling). The work performed may include new work, additions, alterations, maintenance, and repairs. Contractors installing specialized building equipment, such as elevators, escalators, service station equipment, and central vacuum cleaning systems, are also included.

Electrical Contractors and Other Wiring Installation Contractors
This industry comprises establishments primarily engaged in installing and servicing electrical wiring and equipment. Contractors included in this industry may include both the parts and labor when performing work.
Illustrative Examples
Airport runway lighting contractors
Fiber optic cable (except transmission line) contractors
Alarm system (e.g., fire, burglar), electric, installation only
Highway, street, and bridge lighting and electrical signal installation
Audio equipment (except automotive) installation contractors
Home automation system installation
Lighting system installation
Cable television hookup contractors
Telecommunications equipment and wiring (except transmission line) installation contractors
Computer and network cable installation
Traffic signal installation
Environmental control system installation
Cable splicing, electrical or fiber optic

Plumbing, Heating, and Air-Conditioning Contractors
This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air conditioning equipment. Contractors in this industry may provide both parts and labor when performing work.
Illustrative Examples
Cooling tower installation
Heating, ventilation, and air-conditioning (HVAC) contractors
Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation
Lawn sprinkler system installation
Fire sprinkler system installation
Mechanical contractors
Fireplace, natural gas, installation
Refrigeration system (e.g., commercial, industrial, scientific) installation
Furnace installation
Sewer hookup and connection, building

Other Building Equipment Contractors
This industry comprises establishments primarily engaged in installing or servicing building equipment (except electrical, plumbing, heating, cooling, or ventilation equipment). The repair and maintenance of miscellaneous building equipment is included in this industry.
Illustrative Examples
Automated and revolving door installation
Lightning protection equipment (e.g., lightning rod) installation
Boiler and pipe insulation installation
Machine rigging
Commercial-type door installation
Millwrights
Conveyor system installation
Overhead door, commercial- or industrial-type,
installation
Dismantling large-scale machinery and equipment
Revolving door installation
Elevator installation
Satellite dish, household-type, installation
Escalator installation
Vacuum cleaning system, built-in, installation
Gasoline pump, service station, installation

 

Building Finishing Contractors
This industry group comprises establishments primarily engaged in the specialty trades needed to finish buildings.

Drywall and Insulation Contractors
This industry comprises establishments primarily engaged in drywall, plaster work, and building insulation work. Plaster work includes applying plain or ornamental plaster, and installation of lath to receive plaster.  Establishments primarily engaged in providing firestop services are included in this industry.
Illustrative Examples
Acoustical ceiling tile and panel installation
Lathing contractors
Drop ceiling installation
Plastering (i.e., ornamental, plain) contractors
Drywall contractors
Soundproofing contractors
Firestop contractors
Fresco (i.e., decorative plaster finishing) contractors
Taping and finishing drywall
Gypsum board installation
Wall cavity and attic space insulation installation

Painting and Wall Covering Contractors
This industry comprises establishments primarily engaged in interior or exterior painting or interior wall covering.
Illustrative Examples
Bridge painting
Paperhanging or removal contractors
House painting
Ship painting contractors
Paint and wallpaper stripping
Wallpaper hanging and removal contractors

Flooring Contractors
This industry comprises establishments primarily engaged in the installation of resilient floor tile, carpeting, linoleum, and hardwood flooring.
Illustrative Examples
Carpet, installation only
Resilient floor tile or sheet (e.g., linoleum, rubber, vinyl), installation only
Vinyl flooring contractors
Resurfacing hardwood flooring
Hardwood flooring, installation only
Floor laying, scraping, finishing, and refinishing

Tile and Terrazzo Contractors
This industry comprises establishments primarily engaged in setting and installing ceramic tile, stone (interior only), and mosaic and/or mixing marble particles and cement to make terrazzo at the job site.
Illustrative Examples
Ceramic tile installation
Mosaic work
Mantel, marble or stone, installation
Tile (except resilient) laying and setting
Stone flooring installation
Marble, granite, and slate, interior installation
contractors

Finish Carpentry Contractors
This industry comprises establishments primarily engaged in finish carpentry work.
Illustrative Examples
Built-in wood cabinets constructed on site
Molding or trim, wood or plastic, installation
Countertop, residential-type, installation
Paneling installation
Door and window frame construction
Garage door, residential-type, installation
Prefabricated kitchen and bath cabinet, residential type, installation
Ship joinery contractors
Millwork installation
Window and door, residential-type, of any material, prefabricated, installation

Other Building Finishing Contractors
This industry comprises establishments primarily engaged in building finishing trade work (except drywall, plaster, and insulation work; painting and wall covering work; flooring work; tile and terrazzo work; and finish carpentry work).
Illustrative Examples
Fabricating cabinets or countertops on site
Closet organizer system installation
Modular furniture system attachment and installation
Concrete coating, glazing, or sealing
Trade show exhibit installation and dismantling
Countertop and cabinet, metal (except residential type), installation
Waterproofing contractors
Drapery fixture (e.g., hardware, rods, tracks)
installation
Window shade installation

 

Other Specialty Trade Contractors
This industry group comprises establishments primarily engaged in site preparation activities and in specialized trades (except foundation, structure, and building exterior contractors; building equipment contractors; and building finishing contractors).

Site Preparation Contractors
This industry comprises establishments primarily engaged in site preparation activities, such as excavating and grading, demolition of buildings and other structures, and septic system installation. Earthmoving and land clearing for all types of sites (e.g., building, nonbuilding, mining) is included in this industry. Establishments primarily engaged in construction equipment rental with operator (except cranes) are also included.
Illustrative Examples
Blasting, building demolition
Foundation digging (i.e., excavation)
Concrete breaking and cutting for demolition
Foundation drilling contractors
Cutting new rights of way
Grading construction sites
Demolition, building and structure
Line slashing or cutting (except maintenance)
Dewatering contractors
Septic system contractors
Dirt moving for construction
Trenching (except underwater)
Equipment rental (except crane), construction, with operator
Underground tank (except hazardous) removal
Excavating, earthmoving, or land clearing contractors
Wrecking, building or other structure