A full rewire can feel like a sensible investment in the fabric of a home; it can also look like an alarming bill arriving just when the walls, floors and decorations are finally in good shape. I have always found that contrast difficult to ignore. The work is largely hidden once it is finished, yet the disruption is impossible to miss while it is happening.
In the UK, a complete house rewire in 2026 usually costs between £3,500 and £9,000 or more. That is a broad range, but it reflects the reality better than a single headline figure. A small, straightforward property may sit near the lower end. A larger house with awkward access, extra sockets, extensive chasing into walls or a higher-cost location can move well beyond it.
The price is not simply a charge for replacing old cable. It covers labour, materials, testing, the consumer unit and the practical trouble of reaching wiring that may have been installed decades ago.
Typical UK rewire prices by property size
For a three-bedroom house, a reasonable working estimate is around £4,000 to £8,000. A typical semi-detached house often falls between £5,000 and £8,000, although the exact layout and condition of the property matter more than the label “semi-detached” suggests. Two houses with the same number of bedrooms can present very different jobs once an electrician starts lifting floorboards and examining existing routes.
A four-bedroom house generally costs about £4,500 to £9,500 to rewire. Some estimates place the usual range closer to £6,080 to £9,380. Those figures are useful for budgeting, but I would treat them as a starting point rather than a promise. A house with several reception rooms, an extension, a loft conversion or a detached garage may need more cable and more labour than its bedroom count implies.
Flats are usually less expensive than houses, partly because there is less area to cover. A one-bedroom flat may cost roughly £2,500 to £4,200, while a two-bedroom flat commonly falls between £3,000 and £5,000. Access can still complicate the job, especially in buildings where floors, ceilings or communal areas cannot be disturbed without permission.
A full rewire of a three-bedroom house typically takes around four to eight working days. That estimate assumes a reasonably accessible property and a clear scope of work. If the electrician has to work around occupied rooms, carefully preserve decorative finishes or deal with unexpected problems behind the walls, the timetable can stretch.
What the quote actually pays for
Materials for an average house, including cables, back boxes, sockets, switches and the consumer unit, account for about £1,000 to £2,000. The rest of the bill is largely labour and the cost of managing the job properly. That distinction matters because a quote that looks high is not necessarily padded with expensive fittings. Much of the work is slow, skilled and messy rather than visually impressive.
An electrician may need to lift floorboards, cut channels into plaster, remove sections of skirting board and drill through joists or walls to create safe cable routes. Once the new wiring is installed, the disturbed areas may need filling, plastering and redecorating. Some electricians include limited making-good in their price; others leave it to a plasterer or decorator. I would never assume that “fully rewired” means “ready for a final coat of paint”.
The consumer unit is another significant part of the installation. It is the distribution board that houses the protective devices for the circuits in the property. Replacing it may be part of a full rewire, but the type and specification chosen can affect the price. A quote should state clearly what is included rather than simply referring to a new consumer unit in passing.
Sockets and switches create a similar trap. Standard white plastic fittings are usually less costly than metal, antique-style or designer ranges. Adding more outlets is often sensible while the walls and floors are already open, but each additional point brings materials and labour. I see this as one of the few moments when a homeowner can improve the daily practicality of a room without having to reopen it later.
A rewire is disruptive.
Why two similar homes can receive different quotes
The age of the property is one obvious factor. Older houses may have wiring that has been altered repeatedly, with additions made during renovations rather than installed as one coherent system. An electrician may uncover junctions, redundant cables or routes that do not match the current layout. None of that can be priced accurately from the front door alone.
The condition of the walls and floors matters as well. Suspended timber floors can sometimes provide easier access than solid floors, but floor coverings, built-in furniture and fitted kitchens still make the work more complicated. Solid walls may require more chasing, while finished surfaces demand extra care if the owner wants to limit visible damage.
The intended finish also changes the budget. Some homeowners are happy for cables to be chased into walls and for the making-good to be completed later. Others want every disturbed surface repaired before the electrician leaves. If the house is empty, the team can normally move faster than it can in a furnished home where every room has to be cleared and protected in stages.
The number of circuits, lighting arrangements and outside supplies also have an effect. A basic installation is a different job from a property with extensive outdoor lighting, electric heating, a workshop, an outbuilding or other substantial electrical demands. Those features should be discussed before the quotation is prepared, not added as surprises halfway through the work.
Location plays a clear part in the price. London and the South East are typically around 20 to 30 per cent more expensive than the UK average. That difference can turn a borderline quote into a serious budget decision, particularly for a larger property. A local electrician may still be the best option, but comparing several detailed quotations is more useful than comparing three unexplained totals.
How I would read a rewire quotation
The first thing I would check is whether the quote covers the whole property or only the visible electrical points. It should describe the number of sockets, switches, lights and circuits, identify the consumer unit, and say whether testing and certification are included. If the wording is vague, the final cost has too much room to move.
I would also ask what happens to walls, ceilings, floors and fittings after the cables have been installed. “Making good” can mean anything from filling small chases to arranging substantial plastering. The difference is important. A low quote that excludes all repairs may become less attractive once the cost of putting the rooms back together is added.
The choice of fittings should be recorded too. If the quote assumes standard sockets but the homeowner later chooses brushed brass or another premium range, the materials bill will change. The same applies to dimmer switches, USB sockets and specialist light fittings. These are not necessarily extravagant additions, but they should be priced before work starts.
I would be cautious about quotes that are dramatically cheaper than the others without a convincing explanation. A lower figure may reflect a smaller scope, fewer outlets, no plaster repairs or an assumption that the property will be empty. It may be perfectly legitimate, but it needs unpacking. The cheapest number on the page is not always the cheapest route to a finished, tested installation.
A full rewire is easiest to organise before moving into a property or before major renovation work begins. Empty rooms give electricians better access, while planned plastering and decorating can absorb the damage caused by cable routes. Trying to carry out the same job in a furnished home is possible, but it often means more protection, more moving and more inconvenience.
I would plan the location of sockets and switches before the first wall is opened. This sounds obvious, yet it is remarkably easy to discover after the plasterer has left that a bedside socket is on the wrong side of the room or that the only convenient outlet is hidden behind a large piece of furniture. A rewire is expensive; repeating the disruption for small changes is worse.
The final price should be judged against the house itself, not against an attractive figure found in a general guide. A one-bedroom flat may sit around £2,500 to £4,200, while a four-bedroom house can approach or exceed £9,000. Between those points lies a long list of decisions about access, fittings, finish and the amount of electrical work the property actually needs. I would rather see a detailed quote with an honest allowance for uncertainty than a suspiciously neat total that leaves every awkward detail for later.