When new socket outlets have to be fitted or wiring extended along walls or ceilings, the electricians will have to cut a channel in the plaster to conceal the cable. They will also have to chop out some of the brickwork to house the steel box for the socket. The electricians will cut through the plaster cleanly with a sharp cold chisel (or fit a specially designed router to an electric drill and work at slow speed), making the grooves and openings as wide as necessary. Chopping through the brickwork with a sharp brick bolster, making the hole deep enough for the front edge of the box to lie flush with the wall surface. Screwing the box into position, feed in the cable and fill any surrounding gaps with plaster or cellulose filler, finishing the surface as before.
When the electricians have made the necessary repairs,they can then connect up the socket and screw it onto the box. Plastering large areas is physically demanding work best left to a skilled professional,who can apply large amounts of plaster before the mixture begins to harden. If you employ a contractor to insert a new damp proof course, an estimate for replastering internal walls should be included if hacking away old plaster is involved.
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