- Plumbing, heating, air-conditioning (17)
- Painting and paper hanging (2)
- Electrical work (10)
- Masonry and other stonework (3)
- Plastering, drywall, and insulation (8)
- Terrazzo, tile, marble and mosaic work (7)
- Carpentry work (5)
- Floor laying and floor work, nec (2)
- Roofing, siding, and sheetmetal work (4)
- Concrete work (6)
- Water well drilling (1)
- Glass and glazing work (1)
- Excavation work (14)
- Special trade contractors, nec (10)
