- Plumbing, heating, air-conditioning (35)
- Painting and paper hanging (15)
- Electrical work (34)
- Masonry and other stonework (8)
- Plastering, drywall, and insulation (4)
- Terrazzo, tile, marble and mosaic work (11)
- Carpentry work (11)
- Floor laying and floor work, nec (4)
- Roofing, siding, and sheetmetal work (7)
- Concrete work (8)
- Water well drilling (2)
- Structural steel erection (1)
- Glass and glazing work (1)
- Wrecking and demolition work (2)
- Installing building equipment (1)
- Special trade contractors, nec (28)
