When wiring a house, there are many types wire to choose from, some copper, others aluminum, some rated for outdoors, others indoors. In general however, there are only a couple varieties used for wiring a residential home. Romex Cables. Romex (shown in yellow above) is the trade name for a type of electrical conductor with non-metallic sheathing that is commonly used as residential branch wiring. In fact, Romex will be the most common cable you'll use in wiring a house. The following are a few basic facts about Romex wiring:
1 Average total cost (materials and labor) for rewiring a house starts around $3,500-$8,000 for a moderate-sized home with easy access (at least 18-inches of crawlspace under the home plus an accessible attic) but can run $8,500-$20,000 or even as high as $30,000 for a large house and/or one with difficult access. You might want to rent a self-storage unit for anywhere from $40-$230 a month to house your valuable furniture and decorations during the rewiring process, which can be quite dusty and invasive.
1 There may also be a minimum $50-$150 service charge to come to the house and evaluate the problem. 2  Total cost for hiring an electrician will depend on the type of work done. Average total costs for rewiring a house start at $3,500-$8,000 for a moderate-sized home with easy access to the crawlspace and attic, but it can cost $8,500-$30,000 or more for rewiring a large house and/or one with difficult access.