Mechanical construction is the installation, replacement, or repair of plumbing, heating, air conditioning, process piping, refrigeration, lightning protection equipment.
Connecting or disconnecting electricity supply wiring to and from electrical equipment; or. installing, removing, adding, testing, replacing, repairing, altering or an electrical installation.
Plumbing is any system that conveys fluids for a wide range of applications. Plumbing uses pipes, valves, plumbing fixtures, tanks, and other apparatuses to convey fluids.
