Rewiring Cost UK – 2026 Price Guide
How much does rewiring a house cost in the UK in 2026? This guide uses real pricing data from 519 UK towns to show realistic figures for full house rewires, partial rewires, consumer unit upgrades, EV chargers and EICRs — plus what Part P certification and NICEIC registration actually mean for your quote.
Do you need planning permission for this?
Rewiring doesn't need planning permission, but Part P Building Regs apply to all notifiable work. Listed buildings have stricter rules around chasing walls and visible cabling. 4-minute read.
Read the rewiring planning rules →Rewiring Cost at a Glance
Typical 2026 UK prices for the most common rewiring and electrical jobs, drawn from BestBuilders platform data. A full rewire is one of the biggest-ticket jobs on an older property — budget for 1-2 weeks of disruption and always use a Part P registered electrician.
Complete replacement of all cabling, sockets, switches, consumer unit. Lift-and-relay flooring, re-decorate afterwards. 5–10 days on-site.
Get quotes →Targeted circuits only — kitchen refurbishment, bathroom addition, or ground-floor upgrade. 2–4 days on-site, less disruption.
Get quotes →Replace old fuse box with modern RCBO/RCD consumer unit. Improves safety and is required for most extensions. 4–6 hours.
Get quotes →Rewire cost depends on house size, age, existing cable condition and circuit count. An NICEIC-registered electrician will survey and give you a proper quote.
Get free quotes →Electrical Work Cost by Project (UK 2026)
| Project | Typical Scope | Installed Cost | Timeline |
|---|---|---|---|
| Full rewire (1-bed flat) | 4-5 circuits | £2,200 – £3,500 | 3–5 days |
| Full rewire (2-bed flat/terrace) | 6-7 circuits | £2,800 – £4,800 | 4–7 days |
| Full rewire (3-bed semi) | 8-10 circuits | £3,800 – £6,500 | 5–10 days |
| Full rewire (4-bed detached) | 10-14 circuits | £5,500 – £9,000 | 7–12 days |
| Full rewire (5-bed / older property) | 12-16 circuits | £7,500 – £12,500 | 10–15 days |
| Consumer unit upgrade | Replace + certify | £450 – £900 | 4–6 hours |
| EV charger (7kW) | Wall-mounted, tethered | £800 – £1,400 | 4–8 hours |
| EV charger + fuse board upgrade | If needed | £1,300 – £2,200 | 1 day |
| EICR (periodic inspection) | Rental / pre-purchase | £150 – £300 | 2–4 hours |
| Additional socket | Single point | £80 – £180 | 1–2 hours |
| Additional lighting circuit | New room | £200 – £450 | ½ day |
| Smart lighting install | 5-room retrofit | £600 – £1,500 | 1–2 days |
All figures include materials, labour, testing and Part P certification. Excludes any redecoration or floor refitting after chase-out. Add 10–20% for older properties (pre-1960) with plaster/lath walls or no wiring diagram.
What's Included in a Full Rewire Quote
A typical full rewire breakdown — labour dominates the total because of the chasing, testing and certification time. Materials are a smaller share than most homeowners expect.
Materials (~30%)
- Cabling (twin & earth) — £400–£900 (1.5mm for lights, 2.5mm for sockets)
- Consumer unit + RCBO/RCDs — £200–£450 (BS 7671 compliant)
- Sockets, switches, back boxes — £150–£350 (15–25 sockets + 10–15 switches)
- Light fittings + downlights — £150–£500 (excluding designer fittings)
- Conduit, clips, junction boxes — £80–£150
- Earthing & bonding kit — £50–£120
Labour, Testing & Certification (~70%)
- Electrician labour — £2,500–£4,500 (2-person team, 5–10 days)
- Chasing walls + first fix — included in labour (day 1–4)
- Second fix — included in labour (day 5–8)
- Testing & commissioning — included (full circuit tests, RCD trip tests)
- Part P notification — £80–£200 (Building Control or Competent Person Scheme)
- Electrical Installation Certificate (EIC) — included in Part P
Full Rewire Cost by UK Region (3-bed Semi)
Rewiring has significant regional pricing variation — labour rates move more than material costs. London and South East electricians charge £80–£120/hour more than the Midlands.
Common Questions About Rewiring Costs
How much does it cost to rewire a 3-bed house in 2026?
A full rewire of a typical 3-bed semi in the UK costs £3,800–£6,500 in 2026, including materials, labour, testing, Part P certification and the Electrical Installation Certificate. This assumes 8-10 circuits, standard chasing, RCBO consumer unit and a 5-10 day on-site schedule. Older properties (pre-1960) with plaster/lath walls typically add 10-20%.
How do I know if my house needs rewiring?
Signs you may need a rewire: round pin sockets or old cloth/rubber cabling (pre-1970s), no RCD protection in the fuse box, flickering lights or tripping RCDs, burn marks near sockets/switches, or the last rewire was more than 25-30 years ago. The only definitive answer comes from an EICR — a periodic inspection by a qualified electrician (£150-£300) that categorises faults as C1/C2/C3 and tells you what needs urgent attention.
Do I need Building Control involvement for a rewire?
Yes — rewires are Notifiable Work under Part P of the Building Regulations (England and Wales). You have two options: (1) use an electrician registered with a Competent Person Scheme (NICEIC, NAPIT, ELECSA, ECA) who self-certifies the work and sends you a Building Regs Compliance Certificate, or (2) submit a Building Notice to your local authority before work starts (adds £150-£400 in fees). Option 1 is quicker and cheaper — and 95% of UK rewires are done this way.
Do I have to move out during a rewire?
Usually no, but it's very disruptive. Expect the power off for 6-10 hours each day, walls chased (dust everywhere), flooring lifted in some rooms, and one room/floor done at a time. Some homeowners stay in a spare room as it rotates; others move out for the week. Small children, shift workers or anyone who works from home often find it easier to stay elsewhere for 3-4 days. Budget for redecoration afterwards — a rewire isn't 'making good' in most quotes.
Is an EV charger included in a rewire?
Not automatically — but it's the perfect time to add one. A 7kW EV charger costs £800-£1,400 fully installed, but added during a rewire it's often £600-£1,000 because the electrician is already running cable, doing Part P paperwork and has scaffolding access if needed. If your existing consumer unit is old, upgrading it at the same time avoids duplicating the work later. The OZEV grant ended in March 2022 — there are no UK-wide grants for home EV chargers in 2026.
How long does a full house rewire take?
Typical timelines: 1-bed flat 3-5 days, 2-bed flat/terrace 4-7 days, 3-bed semi 5-10 days, 4-bed detached 7-12 days. The variance within each size depends on plaster vs plasterboard walls (chasing is faster in plasterboard), how much furniture needs moving, access to roof void for lighting circuits, and whether you need additional circuits (e.g. EV charger, extra sockets). Always add 1-2 days to the electrician's estimate — testing and certification usually takes longer than expected.
Why do rewire quotes vary so widely?
Quality of consumer unit (basic RCBO board vs premium surge-protected), number of additional circuits included (is the EV charger circuit in? outbuilding supply?), whether Part P certification is itemised or included, number of sockets and switches specified, fittings (basic white plastic vs chrome/brushed steel), and whether the electrician is Competent Person Scheme registered or not (unregistered electricians are cheaper but you bear the Building Notice fee and risk). Always insist on 3 itemised quotes and verify NICEIC/NAPIT registration on their public directories.
Rewiring & Electrical Costs by Town
Each town page shows local NICEIC-registered electricians, town-specific cost ranges, recent project examples and nearby areas. Compare 3 free quotes from vetted local NICEIC-registered electricians.
House Rewire Cost UK 2026: By Property Size + Bedrooms
The single biggest cost driver for a UK rewire is the number of rooms (each needs new circuits, sockets, lighting) and floors (cable runs). For a typical 3-bed UK semi the rewire takes 5-8 days and costs £4,500-7,500 in 2026. Below is the verified Q2 2026 cost by property size.
| Property | Typical Rooms | Full Rewire Cost 2026 | Time On Site | Days Without Power |
|---|---|---|---|---|
| 1-bed flat / studio | 3-4 | £2,200-3,400 | 3-4 days | 2 days |
| 2-bed flat / terrace | 4-5 | £3,200-4,800 | 4-6 days | 2-3 days |
| 3-bed semi (typical UK home) | 6-8 | £4,500-7,500 | 5-8 days | 3-4 days |
| 4-bed detached | 8-10 | £6,000-9,500 | 7-12 days | 4-6 days |
| 5-bed family home | 10-12 | £7,500-12,000 | 10-16 days | 5-7 days |
| 6+ bed / large detached | 12+ | £9,500-18,000 | 14-25 days | 6-10 days |
Includes new consumer unit (£450-900), new circuits, new sockets (8-12 per room), new ceiling roses + lighting points, new wiring throughout, Part P building notice, EICR certificate. Excludes plastering/redecoration (typically £600-1,500 add-on). London + South-East adds 20-30%.
Partial vs Full House Rewire: When Each Is Right in 2026
A partial rewire (replacing only deficient circuits) costs roughly 35-55% of a full rewire and avoids the major disruption. It's the right answer when your EICR identifies specific circuit failures but the rest of the wiring is sound. Full rewire becomes necessary when overall insulation is degraded, the consumer unit is non-compliant, or wiring exceeds expected lifespan.
Partial Rewire (£1,800-4,500)
When: EICR flags specific circuits (kitchen, bathroom, particular socket runs). Rest of wiring sound.
Cost (3-bed semi): £1,800-4,500 depending on number of circuits.
Time: 2-4 days; only affected rooms without power briefly.
Plus: CU upgrade often needed (£450-900 added).
Full Rewire (£4,500-7,500)
When: Wiring is 30+ years old, mostly rubber/lead/fabric insulated, fuse box has rewireable fuses, EICR is Code 1 or multiple Code 2.
Cost (3-bed semi): £4,500-7,500.
Time: 5-8 days; whole house without power 3-4 days.
Plus: Decoration to walls/ceilings (£600-1,500 makinggood).
2026 guidance: if your house was rewired after 1995 (PVC-insulated cable, plastic consumer unit), a partial rewire driven by a current EICR is almost always the right answer. If wiring predates 1985 (fabric/rubber insulation, BS3036 fuses), a full rewire is the only safe option — partial work won't be certified by most NICEIC/NAPIT registered electricians because of compounded compatibility issues.
Consumer Unit Replacement + EICR Cost UK 2026
A consumer unit (formerly "fuse box") replacement is a smaller standalone job that often pre-empts a full rewire. Combined with an EICR (Electrical Installation Condition Report), these are the two most-asked-for stand-alone electrical jobs in 2026.
| Job | Typical Cost 2026 | Time | When Required |
|---|---|---|---|
| EICR Test + Certificate | £150-280 (3-bed); £200-380 (4-5 bed) | 2-4 hours | Required for all UK private rental (every 5 years), recommended for owner-occupiers every 10 years |
| Consumer Unit Replacement (CU + 6-12 way) | £450-900 | 4-8 hours | CU pre-2008 (BS7671 17th-edition non-compliant), plastic enclosure recall, RCD failure |
| CU Replacement + SPD (Surge Protection Device) | £600-1,100 | 5-9 hours | 2018 IET Wiring Regs (Amendment 2) recommendation for new CUs |
| CU Replacement + AFDD (Arc Fault Detection) | £700-1,400 | 5-9 hours | Recommended for high-fire-risk areas; mandatory in HMOs since 2022 |
| EV Charger Sub-Board + Earth | £200-450 | 2-4 hours | Older CU has no free slot for EV circuit |
All consumer unit work is notifiable to Building Control (NICEIC, NAPIT, ELECSA + Stroma registered electricians self-certify under Part P, included in their day rate). Don't accept un-certified work — it invalidates building insurance and is unlawful to sell with.
How Long Does House Wiring Last? When Is Rewire Required in 2026?
Modern PVC-insulated wiring (post-1995) lasts 30-40 years before insulation degrades enough to need replacement. Older fabric-insulated cables (pre-1970s) and rubber-insulated (1940s-60s) typically need full rewire if not already done — these wirings exceed expected safe life and risk fire, electric shock, or unsafe earthing. Below is the 2026 lifespan + replacement-trigger guide.
| Wiring Type / Era | Expected Life | 2026 Status | Action Required |
|---|---|---|---|
| Rubber-insulated (1940s-1960s) | ~40 years | Expired | Full rewire urgent — insulation crumbles, fire/shock risk |
| Fabric/cloth-insulated (1930s-1960s) | ~50 years | Expired | Full rewire — fabric perished, unsafe earth |
| Lead-sheathed (pre-1950s) | ~70 years (but failure pre-life) | Expired | Full rewire urgent — lead corrosion, no earth bonding |
| PVC twin-and-earth (1970s-90s) | 30-40 years | Approaching end of life | EICR + plan rewire within 5-10 years |
| PVC (1995-2010) | 30-40 years | Mid-life | EICR every 10 years; partial rewire if specific circuits fail |
| PVC LSZH (2010+) | 40+ years | Within expected life | EICR every 10 years — no rewire required |
Visual indicators that rewire is urgent: cloth-covered wires visible at sockets, lead-sheathed wires under floorboards, rewireable BS3036 ceramic fuses in box (replaced by MCBs from 1980s), no RCD protection, brown plastic socket fronts (1970s), recurring tripped breakers.
House Rewire Cost FAQs · UK 2026
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