As a guide, the house rewire cost for a typical three-bed semi in Bristol is £4,000–£8,000 in 2026, including a new fuse board (consumer unit) and all certification. A two-bed home usually comes in around £3,000–£5,000, and a four-bed at £6,000–£10,000 or more, depending on the spec and the state of the house.
Those are wide ranges for a reason. Two houses on the same street can be completely different jobs once the floorboards come up. This guide explains what you can expect to pay, what pushes the price up or down, how long the work takes, and the paperwork you should have in your hand at the end.
Weighing up a rewire? Request a free fixed-price quote or call Mark on 07973 782 821 — based in Downend, covering Bristol and surrounding areas. No call-out charge for quotes, and no obligation.
House rewire cost by property size
The table below shows typical full rewire prices for the Bristol area in 2026. Treat these as a guide, not a quote; if you are comparing against national guides, the cost to rewire a house in the UK spans much the same ranges. Every honest price for a rewire follows a proper look around the house, because the house itself decides half the cost.
| Property | Typical full rewire cost (2026) | Typical time on site |
|---|---|---|
| 2-bed house or flat | £3,000–£5,000 | 4–6 days |
| 3-bed semi | £4,000–£8,000 | 5–10 days |
| 4-bed house | £6,000–£10,000+ | 2–3 weeks |
A full rewire at these prices normally includes:
- New cabling to every circuit: sockets, lighting, cooker, shower and so on
- A new fuse board with RCBO protection (a combined breaker and trip switch on each circuit, so one fault does not black out the whole house)
- New back boxes, sockets and switches throughout
- Earthing and bonding brought up to the current standard
- Smoke and heat alarm wiring where needed
- Testing and certification to BS 7671, plus building control notification
What it usually does not include is replastering and redecorating. Chases in the walls are filled, but a rewire is messy work, and most people plan decorating for afterwards. If a quote seems much cheaper than the ranges above, check exactly what has been left out.
Full rewire vs partial rewire
You do not always need the whole house done. If the wiring was partly renewed in the past, say when a kitchen was extended, an electrician can often keep the sound circuits and replace only the old ones. That is a partial rewire, and it can save you thousands.
| Full rewire | Partial rewire | |
|---|---|---|
| Typical cost (3-bed) | £4,000–£8,000 | £1,000–£3,000 |
| What is replaced | Every circuit, plus the fuse board | Only the circuits that fail testing |
| Disruption | Whole house, floors up in most rooms | Limited to the affected rooms |
| When it makes sense | Original wiring throughout, or major renovation | Mixed-age wiring where some circuits test fine |
The honest answer on which one you need comes from testing, not guesswork. We test each circuit and tell you which ones are genuinely at the end of their life. We have covered the partial option in detail in our guide to partial rewire costs.
One warning: a partial rewire is only good value if the remaining circuits really are sound. Patching new cable onto tired old wiring to save money now usually costs more later.
What drives the house rewire cost up or down
Two three-bed semis can be £2,000 apart on price. These are the things that move the number:
- Age and construction. Solid walls and lath-and-plaster ceilings, common in the Victorian and Edwardian terraces around Fishponds, Staple Hill and Kingswood, are slower to chase and fish cables through than modern plasterboard. The interwar semis we see around Downend and Mangotsfield sit somewhere in the middle.
- Number of points. Every socket, switch and light fitting is a point that needs cable, a box and a termination. A modern spec with double sockets everywhere and downlights in three rooms costs more than a like-for-like replacement.
- Whether the house is occupied. An empty house is quicker, because we can lift floors and leave things staged. Working around furniture, carpets and a family adds time, and time is most of the cost.
- Access. Deep loft insulation, laminate or tiled floors, and fitted wardrobes over cable routes all slow the job down. Tiled kitchen and bathroom floors are the usual culprits.
- Your spec. Extras such as outside lighting, an electric vehicle charger circuit, extra sockets or smart switches are cheapest to add during a rewire, but they still add to the bill.
- Making good. Filling chases is standard. Full replastering and decoration is a separate trade and a separate cost, so check how each quote handles it.
Labour is the biggest single ingredient in the rewiring cost in Bristol. Day rates for electricians here typically run £250–£350, and a rewire is one to two weeks of that plus materials.
How long does a rewire take?
A full rewire on a three-bed house typically takes five to ten working days. Small flats can be quicker, larger or occupied houses slower.
The work splits into two stages:
- First fix. Floors up, chases cut, old cable out, new cable in. This is the noisy, dusty stage, and it is most of the job.
- Second fix. Sockets, switches and light fittings go on, the new fuse board is connected, and every circuit is tested before it is put into service.
An empty house lets the job run straight through. An occupied one has to be done room by room, with power made safe and usable each evening, which stretches the timescale.
Can you live in the house during a rewire?
Yes, most people do, but be realistic about it. You will have rooms out of action in turn, dust in places you did not expect, and short periods each day with the power off. It is easier if you can clear each room before we start on it and keep one room as a refuge.
If you have somewhere else to stay for the first fix week, that is the single best way to make the job faster and cheaper. We have written an honest room-by-room account of what living through a rewire is actually like, including how to prepare.
Signs your house needs rewiring
Age alone does not condemn wiring, but if your home still has its original cables from before the 1970s, it is worth having them inspected. Things we would want to look at:
- A fuse board with rewirable fuses or a wooden backboard
- Rubber- or fabric-insulated cable, or old colours (red and black went out for new installs in 2006)
- Sockets or switches that are warm, discoloured or crackling
- Fuses blowing or trips going frequently with no obvious cause
- Round-pin sockets, braided flexes, or very few sockets per room
None of these on its own proves you need a rewire. The sensible first step is an Electrical Installation Condition Report, which tests every circuit and tells you in writing what is safe, what needs work and what can wait. An EICR typically costs £150–£250 for a 1–3 bed home in Bristol, and it can save you from paying for a rewire you did not need. Electrical Safety First recommends owner-occupied homes have this check done every ten years.
For a fuller list of warning signs, see our guide to the signs a house needs rewiring.
Certification: the paperwork you should get
A rewire is notifiable work under Part P of the Building Regulations in England. In plain English, that means building control must be told about it and the work must meet BS 7671, the current Wiring Regulations.
At the end of the job you should receive:
- An Electrical Installation Certificate (EIC) covering the whole installation, with the test results for every circuit
- A Building Regulations compliance certificate confirming the work was notified
Keep both safe. Solicitors ask for them when you sell, and without them you may be asked to pay for retrospective testing or face awkward questions at the worst possible moment. If someone offers you a rewire with no paperwork, walk away, whatever the price.
All of our work is certified to BS 7671, and we handle the notification as part of the job. Because a rewire includes a new fuse board as standard, you will not need a separate fuse board replacement on top.
Frequently asked questions
Can I rewire my house myself?
Realistically, no. A rewire is notifiable under Part P, must be designed and tested to BS 7671, and needs certification you cannot self-issue without the right registration and test equipment. DIY rewiring risks fire, shock, and real problems when you come to sell. Use a qualified electrician.
Does a rewire include a new fuse board?
Yes, in almost every case. There is little point running new cable back to a worn-out board, and the new circuits need modern RCBO protection to comply with BS 7671. Every full rewire we do includes a new fuse board with RCBOs and surge protection in the price.
Do I need to rewire before selling my house?
Not necessarily. Old wiring often comes up in a buyer’s survey, but the usual outcome is a price negotiation, not a legal requirement to rewire. An EICR gives you an independent report on what the electrics actually need, which puts you in a much stronger position than a surveyor’s cautious one-liner.
How often does a house need rewiring?
There is no fixed lifespan. Well-installed modern PVC cable can last 40 years or more, while damaged or overloaded wiring can fail much sooner. The sensible rule is an EICR at least every ten years, or when you buy a house, and rewire only when testing shows the circuits are genuinely deteriorating.
Is it cheaper to rewire an empty house?
Usually, yes. With the house empty we are not moving furniture, protecting carpets or restoring power every evening, so the job runs days quicker. If you are buying a place that needs rewiring, the week between getting the keys and moving in is the cheapest and easiest time you will ever have to do it.
Ready for a straight answer on your house? Get a free fixed-price rewire quote or call Mark on 07973 782 821 — covering Bristol and the surrounding areas from Downend. Clear price up front, no hidden extras, and no call-out charge for quotes.