SIC for "179"
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1791 - Structural Steel Erection
Special trade contractors primarily engaged in the erection of structural steel and of similar products of prestressed or precast concrete. …Examples: Building front installation, metal - contractors, Concrete products, structural precast or prestressed: placing of-, -
1793 - Glass and Glazing Work
Special trade contractors primarily engaged in glass and glazing work. …Examples: Glass installation, except automotive - contractors, Glass work, except automotive - contractors, Glazing work -
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1794 - Excavation Work
Special trade contractors primarily engaged in excavation work and digging foundations, including digging and loading. Contractors in this industry may also perform incidental concrete work. …Examples: Excavation work - contractors, Foundation digging (excavation) - contractors, Grading: except for highways, streets,
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1795 - Wrecking and Demolition Work
Special trade contractors primarily engaged in the wrecking and demolition of buildings and other structures, except marine. They may or may not sell material derived from demolishing operations. …Examples: Concrete breaking for streets and highways - contractors, Demolition of buildings or other structures, except marine -
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1796 - Installation or Erection of Building Equipment, Not Elsewhere Classified
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. …Examples: Conveyor system installation - contractors, Dismantling of machinery and other industrial equipment - contractors,
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1799 - Special Trade Contractors, Not Elsewhere Classified
Special trade contractors primarily engaged in construction work, not elsewhere classified, such as construction of swimming pools and fences, erection and installation of ornamental metal work, house moving, shoring work, waterproofing, dampproofing, fireproofing, sandblasting, and steam cleaning of building exteriors. …Examples: Antenna installation, except household type - contractors, Artificial turf installation - contractors, Awning
