- Plumbing, heating, air-conditioning (30)
- Painting and paper hanging (18)
- Electrical work (18)
- Masonry and other stonework (6)
- Plastering, drywall, and insulation (5)
- Terrazzo, tile, marble and mosaic work (1)
- Carpentry work (13)
- Floor laying and floor work, nec (3)
- Roofing, siding, and sheetmetal work (9)
- Concrete work (9)
- Water well drilling (2)
- Structural steel erection (1)
- Excavation work (30)
- Wrecking and demolition work (1)
- Special trade contractors, nec (21)
