cost to rewire 3 bed semi
House rewiring prices depend on the size of the property and how many rooms need to be rewired. According to a Which? Local survey of electricians, to completely rewire an average 2 bed terraced house youâre going to be looking at costs of between Â£2,200 and Â£3,000.To rewire an average 3 bed semi will cost around Â£2,800 to Â£4,000, and rewiring costs for an average 4 bed detached will be between Â£3,400 and Â£5,000*.ewiring a house is a big job. It involves removing all of the old wires and fittings, and installing new wiring and fittings. With the amount of work involved it can take anything from 5 to 15 days depending on the size of the property being rewired.