Special trade contractors primarily engaged in the installation or erection of building equipment, not elsewhere classified, such as elevators, pneumatic tube systems, and dust collecting equipment. This industry also includes contractors primarily engaged in the installation or dismantling of machinery or other industrial equipment. Contractors primarily engaged in the construction of industrial incinerator, furnace, and oven structures are classified in Industry 1629.
- Conveyor system installation-contractors
- Dismantling of machinery and other industrial equipment-contractors
- Dumbwaiter installation-contractors
- Dust collecting equipment installation-contractors
- Elevator installation, conversions and repair-contractors
- Incinerator installation, small-contractors
- Installation of machinery and other industrial equipment-contractors
- Machine rigging-contractors
- Millwrights
- Pneumatic tube system installation-contractors
- Power generating equipment installation-contractors
- Revolving door installation-contractors
- Vacuum cleaning systems, built-in-contractors