- Plumbing, heating, air-conditioning (64)
- Painting and paper hanging (23)
- Electrical work (69)
- Masonry and other stonework (14)
- Plastering, drywall, and insulation (17)
- Terrazzo, tile, marble and mosaic work (5)
- Carpentry work (23)
- Floor laying and floor work, nec (17)
- Roofing, siding, and sheetmetal work (25)
- Concrete work (12)
- Water well drilling (3)
- Structural steel erection (9)
- Glass and glazing work (6)
- Excavation work (3)
- Wrecking and demolition work (2)
- Installing building equipment (7)
- Special trade contractors, nec (59)