- Plumbing, heating, air-conditioning (8)
- Painting and paper hanging (3)
- Electrical work (8)
- Masonry and other stonework (1)
- Plastering, drywall, and insulation (2)
- Carpentry work (2)
- Floor laying and floor work, nec (2)
- Roofing, siding, and sheetmetal work (3)
- Concrete work (2)
- Excavation work (4)
- Special trade contractors, nec (6)
