- Plumbing, heating, air-conditioning (21)
- Painting and paper hanging (10)
- Electrical work (18)
- Masonry and other stonework (3)
- Plastering, drywall, and insulation (1)
- Carpentry work (4)
- Floor laying and floor work, nec (4)
- Roofing, siding, and sheetmetal work (9)
- Concrete work (5)
- Special trade contractors, nec (9)
