- Plumbing, heating, air-conditioning (12)
- Painting and paper hanging (1)
- Electrical work (1)
- Masonry and other stonework (2)
- Terrazzo, tile, marble and mosaic work (5)
- Carpentry work (3)
- Floor laying and floor work, nec (5)
- Roofing, siding, and sheetmetal work (2)
- Concrete work (4)
- Water well drilling (2)
- Excavation work (2)
- Special trade contractors, nec (5)