- Plumbing, heating, air-conditioning (85)
- Painting and paper hanging (35)
- Electrical work (67)
- Masonry and other stonework (16)
- Plastering, drywall, and insulation (22)
- Terrazzo, tile, marble and mosaic work (3)
- Carpentry work (20)
- Floor laying and floor work, nec (18)
- Roofing, siding, and sheetmetal work (23)
- Concrete work (32)
- Water well drilling (3)
- Structural steel erection (7)
- Glass and glazing work (10)
- Excavation work (19)
- Wrecking and demolition work (3)
- Installing building equipment (2)
- Special trade contractors, nec (47)