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NAICS 238220
Installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs.
Read full definition →SIC 1711
Special trade contractors primarily engaged in plumbing, heating, air-conditioning, and similar work. Sheet metal work performed by plumbing, heating, and air-conditioning contractors in conjunction with the installation of plumbing, heating, and air-conditioning equipment is included here.
Read full definition →SIC 1791
Special trade contractors primarily engaged in the erection of structural steel and of similar products of prestressed or precast concrete.
Read full definition →SIC 1796
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.
Read full definition →SIC 7699
Specialized repair services, not elsewhere classified, such as bicycle repair; leather goods repair; lock and gun repair, including the making of lock parts or gun parts to individual order; musical instrument repair; septic tank cleaning; farm machinery repair; furnace cleaning; motorcycle repair; tank truck cleaning; taxidermists; tractor repair; and typewriter repair.
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