Verify Contractors by Trade Classification

General building contractors who construct, alter, or repair buildings and structures.

General engineering contractors for highways, bridges, utilities, and infrastructure.

Residential remodeling contractors for home improvements.

Electrical contractors for wiring, lighting, and electrical systems.

Plumbing contractors for pipes, fixtures, and water systems.

Painting and decorating contractors for interior and exterior finishes.

Landscaping contractors for outdoor spaces, irrigation, and hardscaping.

Heating, ventilation, and air conditioning contractors.

Flooring and floor covering contractors for all floor types.

Tile contractors for ceramic, stone, and mosaic installations.

Roofing contractors for roof installation and repair.

Concrete contractors for foundations, slabs, and structural concrete.

Low voltage systems contractors for alarms, audio/video, and communications.

Cabinet, millwork, and finish carpentry contractors.

Drywall contractors for interior wall and ceiling systems.

Glazing contractors for windows, glass doors, and glass installations.

Swimming pool contractors for pool construction and service.

Earthwork and paving contractors for grading and site preparation.

Fire protection contractors for sprinklers and fire suppression systems.

Masonry contractors for brick, block, and stone work.

Building moving and demolition contractors.

Lathing and plastering contractors for interior finishes.

Fencing contractors for all types of fence installation.

Refrigeration contractors for commercial cooling systems.

Structural steel contractors for steel frame construction.

Sheet metal contractors for ductwork and metal fabrication.

Solar contractors for photovoltaic and solar thermal systems.

Insulation and acoustical contractors for thermal and sound insulation.

Welding contractors for metal joining and fabrication.

Ornamental metal contractors for decorative metalwork.

Framing and rough carpentry contractors for structural wood framing.

Sanitation system contractors for septic and sewage systems.

Sign contractors for commercial and roadway signage.

Well drilling contractors for water wells.

Boiler, hot water heating, and steam fitting contractors.

Pipeline contractors for water, gas, and sewer lines.

Parking and highway improvement contractors.

Construction zone traffic control contractors.

General manufactured housing contractors.

Lock and security equipment contractors.

Asbestos abatement contractors for hazardous material removal.

Water conditioning contractors for water treatment systems.

Reinforcing steel contractors for rebar installation.

Elevator contractors for installation and service of elevators and escalators.

Door, lock, and security device contractors.

Tree service contractors for trimming, removal, and arborist services.

Traffic signal and street light contractors.

Construction clean-up contractors.

Non-electrical sign contractors.

Air and water balancing contractors for HVAC systems.

Weatherization and energy conservation contractors.

Hazardous substance removal contractors.

Asbestos certification for hazardous material handling.