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