- Plumbing, heating, air-conditioning (17)
- Painting and paper hanging (1)
- Electrical work (1)
- Masonry and other stonework (1)
- Plastering, drywall, and insulation (9)
- Terrazzo, tile, marble and mosaic work (10)
- Carpentry work (6)
- Floor laying and floor work, nec (1)
- Roofing, siding, and sheetmetal work (7)
- Concrete work (10)
- Water well drilling (1)
- Excavation work (4)
- Installing building equipment (1)
- Special trade contractors, nec (21)
