- Plumbing, heating, air-conditioning (18)
- Painting and paper hanging (19)
- Electrical work (23)
- Masonry and other stonework (4)
- Plastering, drywall, and insulation (5)
- Carpentry work (8)
- Floor laying and floor work, nec (6)
- Roofing, siding, and sheetmetal work (14)
- Concrete work (2)
- Structural steel erection (2)
- Excavation work (4)
- Wrecking and demolition work (1)
- Special trade contractors, nec (11)
