Electrical Rewiring Cost UK: 2026 House Prices & Guide
A full house rewire is one of the most disruptive, dusty, and expensive home improvement projects you can undertake. However, if your property’s wiring is over 30 years old, it is a critical investment to prevent electrical fires and ensure your home meets modern Part P safety regulations. Whether you are renovating an older property or your sockets keep tripping, this comprehensive guide breaks down exactly what you should expect to pay for a full electrical rewire in 2026.
Before Committing to a Rewire
- Check your consumer unit – If your fuse box has wooden backing, cast iron switches, or rewireable wire (no flip switches), it is dangerously obsolete. It needs immediate upgrading, which usually triggers a full rewire.
- Get an EICR first – Before committing £5,000 to a full rewire, spend £150-£250 on an Electrical Installation Condition Report (EICR). An electrician will test the entire house and tell you exactly what fails safety standards.
- Plan ahead – A rewire is the perfect time to add network (ethernet) cables, smart home wiring, or extra sockets in convenient places. Map out your furniture layout before the electricians arrive.
Average House Rewiring Costs (2026)
The cost of a rewire is dictated primarily by the size of the house, the number of ‘points’ (sockets/switches) requested, and whether the property is occupied or empty. Below are the standard national averages for full, first-and-second fix rewires including a new consumer unit.
| Property Size | Empty Property Cost | Occupied Property Cost |
|---|---|---|
| 1-Bedroom Flat | £2,000 – £3,000 | £2,500 – £3,500 |
| 2-Bedroom House / Flat | £3,000 – £4,200 | £3,800 – £5,000 |
| 3-Bedroom Semi/Terrace | £4,000 – £5,500 | £5,000 – £6,500 |
| 4-Bedroom Detached | £5,500 – £7,500 | £6,800 – £8,500+ |
| New Consumer Unit Only | £450 – £800 (If wiring is safe) | |
Note: “Making good” (plastering over the channels cut into the walls for new wires) is rarely included in the electrician’s quote. Budget an extra £500-£1,000 for a plasterer.
What Affects Rewiring Costs?
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Occupied vs Empty
If you live in the house during the work, electricians must move furniture, lift carpets, and reconnect basic power every single night so you can sleep. This adds days of labor time. Rewiring an empty shell is 20-30% cheaper.
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Number of Sockets and Switches
Quotes are based on ‘points’. A standard room might have 3 double sockets. If you want 8 double sockets, USB charging ports, and spotlights, the material and labor costs scale up rapidly.
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Quality of Finishes
Standard white plastic sockets cost £3 each. Brushed chrome or smart-home enabled switches can cost £15-£40 each. Over a whole house, premium faceplates add hundreds of pounds.
Can a Rewire be an Emergency?
If your house wiring is so degraded that the consumer unit catches fire or refuses to hold any circuits safely, the property may be deemed uninhabitable. While the rewire itself cannot be done overnight, an emergency electrician can perform temporary “make safe” fixes (bypassing dead circuits, replacing a burnt fuse box) for £300-£800 to restore basic heating/light while you schedule the full rewire project.
Regional Price Comparison (3-Bed House)
London & South East
Average Rewire: £5,500 – £7,500+
Birmingham & Midlands
Average Rewire: £4,000 – £5,200
North West & Yorkshire
Average Rewire: £3,800 – £5,000
Scotland & Wales
Average Rewire: £3,500 – £4,800
DIY vs Professional Rewiring
The Law on DIY Electrics
Under UK Part P Building Regulations, installing a new consumer unit or adding new circuits to a bathroom/kitchen are “notifiable works.” If you rewire the house yourself, you cannot legally sign off the certificate.
Without an Electrical Installation Certificate, your home insurance is invalid, and you will not be able to sell the house legally. Do not attempt to wire your own house.
Tips to Reduce Rewiring Costs
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Do the Prep Work: Lifting carpets, pulling up floorboards, and moving furniture out of rooms before the electricians arrive saves them hours of laboring time.
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Do the “Chasing” Yourself: The messiest part is cutting channels into the plaster for the wires. Ask your electrician to draw the lines on the wall, and spend the weekend with a wall chaser tool cutting the grooves yourself.
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Keep to White Plastic Sockets: Upgrade faceplates in the living room if you want, but stick to standard £3 white plastic sockets for bedrooms, hallways, and hidden appliances.
Frequently Asked Questions
Conclusion
Rewiring a house is a massive undertaking, but the safety and reliability it brings are invaluable. By understanding the pricing structure, moving out if possible, and handling the cosmetic cleanup yourself, you can keep the costs manageable. Always ensure your chosen electrician provides an EIC certificate upon completion.