- Plumbing, heating, air-conditioning (21)
- Painting and paper hanging (11)
- Electrical work (12)
- Masonry and other stonework (2)
- Plastering, drywall, and insulation (4)
- Carpentry work (10)
- Floor laying and floor work, nec (4)
- Roofing, siding, and sheetmetal work (5)
- Glass and glazing work (4)
- Wrecking and demolition work (1)
- Installing building equipment (2)
- Special trade contractors, nec (19)