Quick answer: average rewire costs
£2,000–£10,000+
How Much Does It Cost to Rewire a House in the UK? (2026 Price Guide)
Planning electrical upgrades and wondering about rewiring house cost UK estimates? This guide explains realistic 2026 prices, what full and partial rewires include, timescales, warning signs and certification requirements.
Before rewiring starts
- Ask whether making good and replastering are included.
- Confirm certificate handover at project completion.
- Agree room-by-room socket and lighting positions in advance.
- Plan temporary accommodation if disruption will be high.
1) Average rewiring costs by house size
When homeowners ask how much to rewire a house, size is usually the biggest first indicator. More rooms means more cable runs, accessories, labour and testing. Access levels and finish expectations then determine where your project sits within the range.
- 1-bed flat: £2,000–£3,000
- 2-bed house: £3,000–£4,500
- 3-bed semi: £4,000–£6,000
- 4-bed detached: £5,000–£8,000
- 5-bed property: £7,000–£10,000+
These figures are based on typical domestic rewiring scopes and include core electrical labour and materials. Decorative upgrades, complex smart-home integrations, premium faceplates, additional data cabling or major making-good work can increase totals.
Older properties can also introduce hidden complexity, especially where previous alterations were undocumented. A proper survey and detailed quote are essential before committing.
A clear room-by-room specification at quote stage helps prevent costly changes once chasing and first-fix work has begun.
2) What does a full rewire include?
A full rewire generally means replacing core electrical infrastructure rather than patching isolated issues. The exact scope varies, but comprehensive domestic rewires often include the following:
- New consumer unit (modern fuse board) with updated protection devices.
- New electrical cables run through key circuits across the property.
- Replacement sockets, switches and standard lighting points.
- Main earth bonding upgrades where required for compliance.
- Full testing and certification on completion.
- Making good work, often including some replastering after chases.
Some quotes include only electrical work, while others include making good and decoration-ready finishes. Always confirm this in writing so there are no surprises later.
For households planning future technology upgrades, rewiring can be the ideal time to add extra data points, improved Wi‑Fi backhaul routes and dedicated circuits for modern appliances.
3) Partial rewire costs
Not every home needs a full rewire. In some cases, targeted upgrades in selected rooms or circuits provide a safe interim solution while controlling budget. Partial rewires in 2026 often fall around £1,500–£4,000, depending on scope.
Common partial rewire scenarios include kitchen rewires, consumer unit upgrades with selected circuit replacement, or extensions where old and new wiring must be integrated safely.
Partial work can be good value when completed as part of wider renovation phases, but it should be planned carefully to avoid repeated disturbance and duplicated labour later.
If your property wiring is very old or failing across multiple circuits, a full rewire may be more economical long-term than repeated partial upgrades.
4) How long does a rewire take?
Timescale depends on property size, access, occupancy and finish standards. As a practical guide:
- 1-bed property: around 3–5 days
- 3-bed property: around 5–10 days
- 5-bed property: around 2–3 weeks
You can sometimes remain in the home during rewiring, but expect significant disruption. Floors may be lifted, walls chased, power isolated in stages and rooms temporarily out of use. For many families, temporary relocation shortens programme time and reduces stress.
Programme planning improves when decisions are made early: socket locations, lighting design, extractor routes, cooker supply points and data requirements should all be agreed before first-fix work starts.
5) Signs your house may need rewiring
Electrical systems do not always fail dramatically; many warning signs appear slowly over years. If you notice several of the following, seek professional inspection:
- Old round-pin sockets or visibly outdated accessories.
- Rubber or fabric-insulated cabling in older sections of the home.
- No earth wire present on key circuits.
- Frequent tripped fuses or breaker trips without clear cause.
- Burn marks, hot outlets or unusual smells near fittings.
- More than 25 years since the last significant rewire.
An electrician can assess condition and advise whether remedial work, partial rewiring or full replacement is the safest route.
If you are buying an older property, arranging an inspection before major renovation decisions can prevent expensive surprises. Early testing gives you a clearer picture of safety priorities and helps sequence rewiring alongside plastering, kitchen refits and other trades more efficiently.
6) Electrical certificates explained
Certification is not optional paperwork — it is proof that work has been tested and meets applicable standards. Three documents homeowners commonly encounter are:
EIC (Electrical Installation Certificate)
Issued for major new installation work, including full rewires. It confirms design, construction and verification testing.
Minor Works Certificate
Issued for smaller additions or alterations to existing circuits where full installation certification is not required.
EICR (Electrical Installation Condition Report)
A condition report from inspection and testing, often used for safety assessment in existing properties, rentals and pre-purchase checks.
Keep all certificates safely with your property records. They are often requested during sales, remortgages, insurance queries and landlord compliance checks.
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It is also wise to request a final handover pack at completion. This should include test results, certificate copies, circuit schedules and notes on any areas left for later decoration. Having these documents organised makes future maintenance easier and gives reassurance to buyers, surveyors and insurers. A tidy handover is a good sign the installation has been completed professionally from start to finish.
Practical planning tips before a house rewire
A successful rewire starts long before the electrician arrives with tools. The first step is mapping how you actually use each room. Think about furniture layout, work-from-home setups, bedside charging, kitchen appliances, broadband equipment and outdoor power needs. Planning this early helps avoid last-minute socket additions that increase labour and disruption.
Next, decide your specification level. Standard white accessories keep costs controlled, while decorative metal finishes and upgraded lighting controls can increase budget. Neither is right or wrong — the key is to price options clearly at quote stage so you can make informed decisions.
Occupancy planning is equally important. Rewires involve lifting floorboards, chasing walls and staged power shutdowns. If you remain in the property, agree a room-by-room schedule and temporary power strategy in advance. Families with children or people working remotely often find partial temporary relocation makes the process easier and faster.
Also consider future-proofing. During rewiring, adding extra socket points, dedicated appliance circuits and data cabling routes is usually far cheaper than retrofitting later. If you are interested in smart-home upgrades, this is the best time to prepare infrastructure while walls and floors are already open.
Finally, keep a written record of all agreed positions and changes. A simple plan showing sockets, switches, lights and special circuits can prevent misunderstandings and costly rework. Good electricians welcome this level of organisation because it improves quality and handover outcomes.
Where possible, schedule a pre-start walkthrough on site to mark final accessory positions in person. Small location changes can make a major difference to everyday usability, especially in kitchens, home offices and bedrooms. Taking one extra hour to confirm these details before chasing begins can save multiple correction visits later. It also helps ensure your finished rewire supports how your household actually lives, rather than forcing workarounds after decoration is complete.
7) Frequently asked questions
How much does it cost to rewire a house in the UK?
Typical costs range from around £2,000 for a one-bed flat to £8,000 or more for larger detached homes, with very large properties sometimes exceeding £10,000.
How long does a full house rewire take?
As a guide, one-bed homes take about 3–5 days, three-bed properties 5–10 days, and five-bed homes around 2–3 weeks.
Can you live in a house during rewiring?
Yes, in some cases, but it is often disruptive. Many homeowners prefer temporary accommodation for speed, safety and comfort.
What certificates should I receive after rewiring?
You should normally receive an Electrical Installation Certificate, and additional documents such as Minor Works Certificates or EICR paperwork where relevant.
What are signs a house needs rewiring?
Watch for old sockets, ageing cable types, frequent tripping, burn marks and wiring systems that have not been updated for 25 years or more.
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Tools & Materials You Might Need
A house rewire is the perfect opportunity to future-proof your home while walls and floors are already open. Many homeowners add Cat6 Ethernet cabling at this stage for reliable wired broadband throughout the property — far cheaper during rewiring than retrofitting later. Once work is complete, upgrading to smart light switches is straightforward with a freshly wired system, adding app and voice control without further electrical work. If you are also updating heating controls, a smart thermostat integrates cleanly with a newly rewired property for maximum efficiency and convenience.