Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure.

Fire safety measures include those that are intended to prevent ignition of an uncontrolled fire, and those that are used to limit the development and effects of a fire after it starts. Fire safety is often a component of building safety..

Civil construction is the art of building bridges, dams, roads, airports, canals, and buildings. Civil engineering is the oldest disciplines of engineering. The roads, railways, stadiums, harbors, schools and other buildings constructed all are a contribution of civil engineering.

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.