- Plumbing, heating, air-conditioning (8)
- Painting and paper hanging (4)
- Electrical work (8)
- Masonry and other stonework (1)
- Plastering, drywall, and insulation (1)
- Carpentry work (2)
- Roofing, siding, and sheetmetal work (1)
- Concrete work (2)
- Water well drilling (1)
- Glass and glazing work (1)
- Excavation work (5)
- Special trade contractors, nec (5)
