- Plumbing, heating, air-conditioning (82)
- Painting and paper hanging (54)
- Electrical work (53)
- Masonry and other stonework (13)
- Plastering, drywall, and insulation (35)
- Terrazzo, tile, marble and mosaic work (22)
- Carpentry work (21)
- Floor laying and floor work, nec (22)
- Roofing, siding, and sheetmetal work (14)
- Concrete work (28)
- Water well drilling (6)
- Structural steel erection (3)
- Glass and glazing work (2)
- Excavation work (6)
- Wrecking and demolition work (4)
- Installing building equipment (1)
- Special trade contractors, nec (157)
