New Shower Costs. The actual cost of a new shower depends on your location, the materials used, the complexity of the installation, and other factors. 1  A basic shower enclosure may cost as little as $400 to $600, while a combination bath/shower unit or a top-of-the-line surround could cost $1,500 to $3,000 or more.
A metal with a large number of free flowing electrons most likely has good conductivity
Conductors have a large number ofâ free electrons (in their atomic structure) so whenever we apply a Voltage electrons move through a conductor (current is flow of electrons). Whereas in an insulator the energy required for the electrons to flow through it is very large so practically it doesn't conduct.