- Plumbing, heating, air-conditioning (10)
- Painting and paper hanging (1)
- Electrical work (12)
- Masonry and other stonework (3)
- Plastering, drywall, and insulation (1)
- Terrazzo, tile, marble and mosaic work (1)
- Floor laying and floor work, nec (4)
- Roofing, siding, and sheetmetal work (4)
- Concrete work (3)
- Water well drilling (1)
- Glass and glazing work (1)
- Excavation work (6)
- Special trade contractors, nec (5)