Rewiring a house is often described as one of the most disruptive home improvements because it requires access to virtually every room and involves physical work to walls, ceilings, and floors throughout the property. The extent of the disruption depends on the age and construction of the house, the approach taken by the electrician, and how well the project is planned.

What a Full Rewire Involves

A full rewire replaces all of the fixed electrical wiring in the property, including the cables to every socket, light fitting, switch, and hardwired appliance, and installs a new consumer unit with modern RCD protection. This requires the electrician to route new cables through walls, ceilings, and floors and to terminate them at new fittings throughout the property. The existing wiring is then removed or isolated.

The Chasing and Damage to Decorations

The most disruptive aspect of a rewire for most homeowners is the physical making good required after the cables are installed. In most cases, cables in walls are run in plastic conduit or chased directly into the plaster and then covered with a skim of repair plaster or filler. This leaves marks, channels, and patches throughout the property that require repainting or replastering before the rooms look finished again.

The extent of the chasing depends on the construction of the house and the electrician's method. Older properties with solid walls and high ceilings require more extensive chasing. Modern properties with timber stud partition walls allow cables to be run through the stud cavities with less surface damage. A first-fix and second-fix approach, where the cables are installed and the consumer unit fitted before any decoration is done, is used in conjunction with renovation works to minimise the double disruption of chasing finished walls.

Can You Live in the House During a Rewire?

Living in the property during a rewire is possible but challenging. The electricity will be isolated for significant parts of each working day during the rewire phase, meaning no lighting, no sockets, no cooking, and no heating. The property will have dust and mess from the making good. Bathrooms and kitchens are particular challenges because they are the rooms where loss of power is most immediately uncomfortable.

Some homeowners choose to move out temporarily during the most intensive phase of the work and return when the electricity is reconnected and the making good is under way. This adds cost, particularly if alternative accommodation has to be paid for, but significantly reduces the day-to-day stress of living on a building site.

How Long Does a Rewire Take?

A typical three to four-bedroom house rewire takes between five and ten working days for the first fix and second fix phases, depending on the size and construction of the property and the number of electricians working on it. The making good phase and subsequent decoration are separate and can take as long again. Most rewires are completed within two to three weeks from start to functional completion.

Summary

A full house rewire is genuinely disruptive, requiring physical access to walls, ceilings, and floors throughout the property and leaving chased channels and damage to decorations that must be made good. Living in the house during the work is possible but demanding. Timing the rewire to coincide with other renovation works minimises the overall disruption and ensures the finished property looks clean throughout rather than patched.