- Plumbing, heating, air-conditioning (9)
- Painting and paper hanging (2)
- Electrical work (3)
- Masonry and other stonework (4)
- Plastering, drywall, and insulation (3)
- Carpentry work (1)
- Roofing, siding, and sheetmetal work (2)
- Concrete work (3)
- Water well drilling (1)
- Excavation work (6)
- Special trade contractors, nec (3)
