A full house rewire typically costs between £3,000 and £8,000 for most UK homes, though larger properties can exceed £10,000. The significant price variation depends on your property size, accessibility, and whether you're living in the home during the work. Whilst it's a substantial investment, rewiring is essential for safety and often unavoidable in older properties.
What Affects the Cost of a Full Rewire?
Property size is the primary cost factor. A one-bedroom flat might cost £3,000-£4,500, whilst a three-bedroom semi-detached house typically ranges from £4,500-£7,000, and a five-bedroom detached property can reach £8,000-£12,000. These figures assume straightforward access and include labour, materials, testing, and certification.
The age and construction of your home significantly impacts the price. Solid walls require more extensive work than cavity walls, as electricians must chase out channels for cables. Period properties with lath and plaster walls often cost more due to the delicate nature of the work and potential repairs needed afterwards. If your home has multiple floors, expect higher costs due to the complexity of running cables between levels.
Whether you remain in the property during rewiring also affects pricing. An occupied home requires electricians to work room-by-room, reconnecting power each evening, which takes longer. An empty property allows faster completion as work can progress simultaneously across multiple rooms. This can reduce labour costs by 15-20%.
Clear Warning Signs Your Home Needs Rewiring
If your electrical installation is over 30 years old, it's likely due for replacement. Rubber or lead-sheathed cables, fabric-covered wiring, or round-pin sockets are definite indicators of outdated wiring that needs replacing immediately for safety reasons.
Other warning signs include:
- Frequent circuit breaker trips or blown fuses
- Scorch marks around sockets or switches
- A persistent burning smell near electrical fittings
- Dimming or flickering lights when appliances are switched on
- Sockets or switches that feel warm to the touch
- An old fuse box rather than a modern consumer unit with RCD protection
Don't ignore these signs. Faulty wiring causes thousands of house fires annually in the UK and poses serious risks of electric shock.
What's Included in a Full Rewire?
A complete rewire involves stripping out old cables and installing new wiring throughout your entire property. This includes new cables to every socket, switch, and light fitting, plus a modern consumer unit (fuse box) with RCD protection and MCBs (miniature circuit breakers).
Electricians will install new sockets, light switches, and ceiling roses. Most rewires also include additional sockets in each room—modern homes typically need far more than older properties were equipped with. You'll receive certification upon completion, including an Electrical Installation Certificate that's required for insurance purposes and when selling your property.
The work happens in two stages or "fixes." The first fix involves installing cables and back boxes before plastering, whilst the second fix includes fitting faceplates, light fittings, and the consumer unit after decorating is complete. Factor in costs for a plasterer and decorator, as rewiring inevitably damages walls and ceilings.
How Long Does a Full Rewire Take?
Expect a full rewire to take between one and two weeks for an average three-bedroom house. Smaller flats might be completed in 5-7 days, whilst larger homes can take three weeks or more. The timeline extends if you're living in the property during the work, as electricians must make the installation safe each evening.
The work is disruptive—floors come up, walls are chased out, and you'll be without power for periods. Planning ahead helps minimise inconvenience. If possible, consider moving out temporarily or at least clearing rooms in advance.
Getting Quotes for Your Rewire
Always obtain at least three written quotes from registered electricians. Every electrician should be registered with a competent person scheme such as NICEIC, NAPIT, or ELECSA—this ensures they can self-certify the work and provide the necessary documentation.
A proper quote should include a site visit where the electrician assesses your property thoroughly. Be wary of quotes given over the phone without seeing the job. Ask what's included—some quotes cover just the electrical work, whilst others include making good plasterwork. Clarify whether moving furniture and lifting carpets is your responsibility or theirs, and confirm whether the quote includes the cost of testing and certification. Getting multiple quotes helps you understand the market rate and ensures you're getting fair value for this essential investment in your home's safety.