How much does a house rewire cost in London? In 2026, a full rewire of a London home typically runs from around £3,500 for a 2-bed flat to £10,000+ for a 4-bed house, with 3-bed terraces — the classic Tottenham and Haringey Victorian stock — usually landing between £4,500 and £8,000 on the open market. The honest answer, though, is that no two rewires cost the same: the age of the property, the plaster, whether you’re living in it during the work, and the finish you want all move the number, which is why F & A Electrical quotes a fixed labour price after a free survey, with materials supplied at cost — no day rates, no creeping extras.
House rewire cost London 2026 — typical market prices by property type
The table below shows typical London market ranges for 2026, compiled from current published cost guides (MyJobQuote, Checkatrade and London electrical contractors’ own price pages). London and the South East carry a 20–30% premium over the national average, so ignore any UK-wide figure you’ve seen — it won’t survive contact with an N15 terrace.
| Property type | Full rewire — typical London market range | Partial rewire — typical London market range |
|---|---|---|
| Studio / 1-bed flat | £2,800 – £4,000 | £1,000 – £2,000 |
| 2-bed flat or small terrace | £3,500 – £5,500 | £1,200 – £2,500 |
| 3-bed terrace or semi | £4,500 – £8,000 | £1,500 – £3,500 |
| 4-bed house | £6,500 – £10,000 | £2,500 – £5,000 |
| 5-bed+ house | £9,500 – £14,000+ | £3,500 – £6,000+ |
Those are all-in market figures — labour and materials bundled together, which is how most firms quote. We do it differently. F & A Electrical prices the labour as a fixed figure after a free survey of your property, and supplies materials at cost with the receipts to prove it. You see exactly what the copper, the consumer unit and the accessories cost, and exactly what the workmanship costs. On a job the size of a rewire, that transparency routinely saves customers the marked-up-materials padding that hides inside a bundled quote.
One caveat on partial rewire figures: “partial” means wildly different things — rewiring one storey is not the same as replacing two damaged circuits. Treat the partial column as indicative and get the scope surveyed before you compare quotes.
What drives the price of a rewire in London
Two identical-looking 3-bed terraces can come in thousands of pounds apart. Here’s what actually moves the number:
- Victorian and Edwardian construction. Most of Tottenham, Harringay and the surrounding N postcodes were built between 1880 and 1910. Solid brick walls, deep skirting runs, suspended timber floors that have been overlaid three times — every one of those adds hours of access work before a single cable is pulled.
- Lath-and-plaster walls and ceilings. Original lath-and-plaster crumbles when you chase into it and is expensive to make good. If your ceilings are original, expect the making-good allowance to rise, or discuss surface-mounted alternatives in low-visibility areas.
- Occupied vs empty property. Rewiring an empty house is the fast, cheap version: floors up, cables in, done. Working around a family means sequencing the job room by room, keeping power on overnight, protecting furniture and re-laying flooring as we go — typically adding 20–40% to the labour compared with an empty property.
- Chased-in vs surface-mounted. Chasing cables into the wall and replastering gives the invisible finish most homeowners want, but it’s the most labour-intensive route. Surface trunking or mini-trunking costs significantly less and is a sensible compromise in cellars, garages, lofts and rental properties.
- Number of circuits and points. A modern rewire isn’t a like-for-like swap. A 1970s house might have had 6 circuits; a 2026 specification for the same house is often 10–14 once you add a dedicated kitchen ring, electric shower circuit, smoke alarm circuit and outdoor supply. More points, more cable, more hours.
- Extras rolled into the job. Rewires are the cheapest possible moment to add EV charger supplies, garden power, data cabling or extra sockets — but each addition adds to the total, so decide the wish-list before quotes go out, not after.
Signs your house needs rewiring
Wiring doesn’t last forever. If your installation shows any of the following, a rewire — or at minimum a professional inspection — should be on the list:
- Rubber- or fabric-insulated cable. Black rubber (pre-1960s) and fabric-braided cable perish from the inside out. If you can see it at light fittings or in the loft, the insulation is likely brittle throughout and the installation is living on borrowed time.
- No RCD protection. If your fuse board has rewirable fuses or old-style breakers with no RCDs (the wide switches with a “Test” button), it predates modern shock protection. Sometimes a fuse board replacement solves this on its own — but if the board is that old, the cabling behind it often needs looking at too.
- Frequent tripping, buzzing or warm accessories. Circuits that trip regularly, sockets that feel warm, discoloured switch plates or a faint fishy/burning smell all point to deteriorating connections or overloaded, ageing cable.
- Round-pin sockets, dolly switches or sockets mounted in skirting boards. These are period features in the worst sense — reliable indicators the wiring behind them is 50+ years old.
- An unsatisfactory EICR. A condition report peppered with C1 and C2 codes is the formal version of everything above. If you’re not sure where your installation stands, an EICR is the cheap, definitive way to find out before committing to rewire money — and for rental properties it’s a legal requirement anyway (see our landlord EICR guide).
Full vs partial rewire — which do you need?
A full rewire replaces every cable, every accessory and the consumer unit — the whole installation back to bare copper, done once, certified, and good for decades. It’s the right call when the wiring is uniformly old (rubber or early PVC throughout), when you’re renovating anyway, or when an EICR has failed the installation across multiple circuits.
A partial rewire replaces only the circuits that need it — say, the upstairs lighting that’s still in rubber while the downstairs ring was replaced in the 1990s. It’s cheaper and less disruptive, and it’s a legitimate option when the rest of the installation genuinely tests well. The trap is using it as a false economy: if 70% of the house needs doing, doing it in three separate phases over five years costs more overall (floors up three times, making good three times) than one properly planned full rewire. A survey and test results — not guesswork — should make the decision.
Honest middle ground exists too: some houses need a full rewire of the power circuits but the lighting, rewired more recently, can stay. That’s exactly the kind of thing a free survey establishes before anyone quotes.
What’s included in a full house rewire
A properly quoted London rewire should include all of the following — check every quote against this list, because “cheap” quotes usually get cheap by leaving items off it:
- All new cabling to every socket, switch, light and fixed appliance, on a modern circuit layout designed for how the house is actually used
- A new 18th Edition consumer unit with RCD or RCBO protection on every circuit and surge protection where specified
- New accessories throughout — sockets, switches, pendants — to the finish you choose
- Hard-wired smoke and heat alarms where required
- Full dead and live testing of every circuit on completion
- An Electrical Installation Certificate (EIC) — the document your solicitor, insurer and any future buyer will ask for
- Building Control notification. A rewire is notifiable under Part P of the Building Regulations. Because F & A Electrical is an NICEIC Approved Contractor, we self-certify the work and notify Building Control on your behalf — you’ll receive the compliance certificate in the post without lifting a finger or paying a council application fee.
- Making good — chases filled and left ready for skim/decoration (confirm the level of finish in writing; this is the single most common gap between quotes)
How long does a house rewire take?
Typical durations, assuming reasonable access:
- 1–2 bed flat: 3–5 working days
- 3-bed terrace or semi: 5–10 working days
- 4-bed house: 10–15 working days
- Partial rewire: 1–4 days depending on scope
Add time if the property is occupied (room-by-room sequencing), if ceilings are lath-and-plaster, or if plastering and decoration are part of the package — plaster needs drying time before paint. First fix (cables in, floors up) is the disruptive phase; second fix (accessories on, board live, testing) is much calmer. If you’re living in during the works we keep essential power and lighting running overnight, every night.
How to keep the cost of a rewire down
- Empty the property if you possibly can. Even decamping for the first-fix week cuts real hours off the labour.
- Lift and re-lay your own carpets and flooring, and clear lofts, cupboards and furniture before day one. Every hour we spend moving wardrobes is an hour of electrician time you’re paying for.
- Rewire before you decorate, never after. The worst-value rewire in London is the one done twelve months after a full renovation.
- Accept surface-mounted runs in hidden areas — cellars, garages, inside cupboards — and save the chased-in finish for the rooms you live in.
- Fix the accessory spec early. Standard white accessories vs brushed-brass designer plates can swing the materials bill by four figures on a large house. Because our materials are supplied at cost, you pay the trade price for whichever you choose — not trade price plus a mark-up.
- Get everything on the wish-list into the first quote. Extra sockets cost little while the floors are up and a lot once they’re back down.
- Compare quotes on scope, not just the bottom line. Ask each firm: is the consumer unit included? Making good? Certification and Building Control notification? A quote that’s £1,000 cheaper and missing all three isn’t cheaper.
House rewire cost London — FAQs
How much does it cost to rewire a 3-bed house in London in 2026?
The typical London market range for a full rewire of a 3-bed terrace or semi is £4,500–£8,000 including materials, with Victorian properties, occupied houses and high-spec finishes pushing towards the top end. We quote a fixed labour price after a free survey, with materials charged at cost, so you can see exactly where your money goes.
Does a rewire include a new fuse board?
It should — a full rewire without a new 18th Edition consumer unit is a contradiction, since the old board can’t legally or safely protect the new circuits. If only your board is outdated but the wiring tests well, a standalone fuse board replacement is a far cheaper job than a rewire.
Can I live in my house during a rewire?
Yes — most of our customers do. We work room by room, restore power and lighting each evening, and keep the kitchen and bathroom usable throughout. It adds some labour time compared with an empty property, but for most families it beats the cost of moving out.
Do I legally have to rewire an old house?
No law says “rewire by a certain age”. The legal tests are safety-based: the installation must be safe, and rental properties must hold a satisfactory EICR. An old installation that genuinely passes inspection can stay; one riddled with C1/C2 defects can’t. Start with an EICR and let the test results make the case one way or the other.
Will a rewire add value to my house?
Indirectly, yes — surveyors flag old wiring, buyers use it to negotiate thousands off, and mortgage lenders occasionally retain funds against it. A certified rewire removes that entire line of attack and gives you the paperwork (EIC plus Building Control notification) to prove it at the point of sale.
Get a fixed-price rewire quote — free survey, no obligation
F & A Electrical rewires flats, terraces and houses across Tottenham, Haringey and north and east London — see our full London service areas. Rated 9.69/10 from 237 Checkatrade reviews, we survey for free, quote a fixed labour price in writing, and supply materials at cost. Call 07407 627542 or 07500 721453 to book your free rewire survey.
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