- Plumbing, heating, air-conditioning (2)
- Painting and paper hanging (1)
- Electrical work (2)
- Masonry and other stonework (1)
- Carpentry work (2)
- Roofing, siding, and sheetmetal work (1)
- Water well drilling (1)
- Excavation work (2)
- Special trade contractors, nec (4)
