Plumbing, heat and air-conditioning installation: Class 4322

The industry of Plumbing, heat and air-conditioning installation has the SIC Code 4322

Code 4322 of SIC

Hierarchy of Class 4322

  • Section FConstruction
  • Division 43Specialized construction activities
  • Group 432Electrical, plumbing and other construction installation activities
  • Class 4322Plumbing, heat and air-conditioning installation

List of terms related whith SIC Code 4322

What activities does the Class 4322 contain?

This class includes the installation of plumbing, heating and air-conditioning systems, including additions, alterations, maintenance and repair.

This class includes:

~ installation in buildings or other construction projects of:

~ heating systems (electric, gas and oil)

~ furnaces, cooling towers

~ non-electric solar energy collectors

~ plumbing and sanitary equipment

~ ventilation, refrigeration or air-conditioning equipment and ducts

~ gas fittings

~ steam piping

~ fire sprinkler systems

~ lawn sprinkler systems

~ duct work installation

What activities does not the Class 4322 contain?

This class excludes:

~ installation of electric baseboard heating, see 4321