- Plumbing, heating, air-conditioning (5)
- Painting and paper hanging (1)
- Electrical work (2)
- Plastering, drywall, and insulation (1)
- Terrazzo, tile, marble and mosaic work (1)
- Carpentry work (2)
- Concrete work (2)
- Water well drilling (1)
- Excavation work (4)
- Special trade contractors, nec (2)
