- Plumbing, heating, air-conditioning (6)
- Painting and paper hanging (6)
- Electrical work (7)
- Masonry and other stonework (2)
- Plastering, drywall, and insulation (3)
- Carpentry work (5)
- Floor laying and floor work, nec (1)
- Roofing, siding, and sheetmetal work (4)
- Concrete work (2)
- Excavation work (1)
- Special trade contractors, nec (4)
