How Much Does It Cost to Rewire a House in London? (2026 Guide)

Last updated: June 2026

Rewiring a house in London costs between £3,000 and £18,000 in 2026, depending on the size and age of the property. A one-bed flat typically lands between £3,000 and £5,500, a three-bed semi between £4,500 and £9,500, and a large or period home considerably more. London prices run 15 to 30 per cent above the national average.

A full rewire is one of the biggest single jobs you can commission on a home, and it is one of the easiest to get quoted badly. The figure on the quote depends on the property's age, its walls, whether you are living in it during the work, and what the quote quietly leaves out, such as replastering.

This guide breaks down current London rewiring prices by property size, explains what pushes the cost up or down, walks through the legal side (Part P of the Building Regulations and the certificates you must receive), and shows you how to get fair, comparable quotes from a registered local electrician.

House rewiring costs in London in 2026

Property size	Typical London cost (2026)	Electrical work on site
1-bed flat	£3,000 to £5,500	2 to 4 working days
2-bed flat or terrace	£3,500 to £7,000	3 to 6 working days
3-bed semi-detached	£4,500 to £9,500	5 to 10 working days
4-bed house	£5,500 to £13,000	7 to 12 working days
5-bed or larger	£12,000 to £18,000+	10 to 15+ working days

These ranges come from dated 2026 London cost surveys [1][2][3]. They generally include materials, labour, testing and certification, but usually exclude replastering and decoration, which we cover below.

London consistently sits at the top of the national price bands. Cost surveys put the London premium at roughly 15 to 30 per cent over the UK average [2][4], and one training-industry guide illustrates it concretely: a three-bed rewire that costs around £4,500 in Manchester is closer to £6,500 in London [5]. The premium reflects higher labour rates, parking and congestion costs, and the sheer amount of labour-intensive Victorian and Edwardian housing stock in the capital.

Treat every figure in this guide as a starting point, not a price list. Prices vary with the property and the spec, so always get itemised written quotes, ideally three, before committing.

Rough guides per room and per point

For partial work or sense-checking a quote, smaller units are useful. London electricians commonly price rewiring at around £800 to £1,500 per room, or £60 to £120 per square metre. Adding a standard socket runs £50 to £100 per point, and an LED downlight £60 to £120 per fitting [2].

Full rewires are almost always quoted as a fixed project price rather than per point or per hour. A fixed price protects you if the job overruns, which is common in older properties [3].

What drives the cost of a London rewire

Property age and wall construction

Older properties cost more to rewire because the walls fight back. Lath-and-plaster walls, standard in London's Victorian and Edwardian terraces, are far harder to chase cables into than modern plasterboard, and original cornices and ceiling roses need careful routing to avoid damage. Older London homes typically add 15 to 30 per cent to the base cost, and listed buildings can add a further 20 to 40 per cent on top [6].

Living in the house during the work

An empty property lets the electrician work faster and more freely. Working around furniture and a family slows everything down and adds roughly 10 to 20 per cent to the labour bill [2][3]. If you can move out, or at least clear the rooms being worked on, the saving is real.

Specification level

A standard rewire covers lighting and power circuits with white plastic fittings. Costs climb when you add individual circuit protection (an RCBO consumer unit adds £300 to £400 over a dual-RCD board), smart-home wiring (£1,000 to £5,000 or more), an electric vehicle charger circuit, a garden supply, or premium brushed-brass and chrome accessories [2].

Making good and replastering

Most rewiring quotes include only basic making good of the cable chases, not full replastering or redecoration. Budget an extra £500 to £3,000 for plastering and £200 to £1,000 for floor repairs, depending on how much of the property is disturbed [2][3]. This is the single most common gap between a cheap-looking quote and the real cost of the job.

Parking, congestion and access

London quotes often carry the capital's running costs. The Congestion Charge is £15 per vehicle per day in central London and the Ultra Low Emission Zone (ULEZ) charge is £12.50 per day for non-compliant vans, and inner-London parking can add several pounds an hour on top. How much of this reaches your quote varies by firm, so ask explicitly whether parking and zone charges are included.

Asbestos in older homes

Properties built or altered between the 1930s and 1970s can contain asbestos around fuse board cupboards or in ceiling materials. If it turns up, licensed removal must happen before rewiring can continue, at extra cost. A good electrician will flag the risk during the survey [6].

London electrician rates in 2026

Rate type	UK national	London and South East
Self-employed hourly rate	£45 to £60	£80 to £100
Domestic day rate	£250 to £350	£350 to £450

Source: dated April 2026 day-rate survey [4]. For rewiring specifically, hourly figures of £40 to £75 appear in London cost guides at the lower end [1], with central London rates typically higher.

Day rates matter mainly as a sanity check. If a three-bed rewire is quoted at five to ten working days of labour for two people, the labour element should broadly reconcile with those day rates. A quote dramatically below that line usually means corners, not generosity.

What a rewiring quote should include

A full rewire quote from a registered electrician normally covers:

• Stripping out all old wiring, back boxes and the old consumer unit
• New cables for every circuit (lighting, sockets, kitchen, bathroom, fixed appliances)
• A new consumer unit with modern circuit protection
• Standard white socket and switch plates
• Earthing and bonding brought up to current requirements
• Basic making good of chases
• Full testing, an Electrical Installation Certificate (EIC) and Building Regulations notification [2][3]

Commonly excluded, so confirm each one in writing:

• Full replastering, painting and decoration
• Light fittings beyond basic pendants
• Smart-home or audio-visual cabling
• Parking, Congestion Charge and ULEZ costs
• Any asbestos-related work

Ask for the quote to be itemised so you can compare like for like across electricians. Our guide on how to find a trusted tradesperson in London covers the wider checks that matter before you hire.

How long does a rewire take?

The table above shows working days on site: roughly 2 to 4 days for a one-bed flat and 5 to 10 days for a three-bed semi [1][2]. The calendar time is longer, because a rewire happens in two phases with a pause in the middle.

First fix is the disruptive phase. Floorboards come up, walls are chased, old cables come out and new cables are run from every socket, switch and light back to the consumer unit position. Nothing is live yet.

Between fixes, a plasterer makes good the chases, and the plaster must dry before fittings go on. This typically adds one to two weeks of calendar time and is normally a separate trade and a separate cost.

Second fix is the tidy phase. The consumer unit goes in, faceplates and light fittings are connected, fixed appliances are wired, and every circuit is tested in line with the national wiring standard, BS 7671. You then receive your certificates [3].

In practice, a three-bed London semi commonly spans two to three calendar weeks from start to certified finish, even though the electricians are only on site for five to seven of those days.

Can you live in the house during a rewire?

Yes, but plan for disruption. Electricians can phase the work zone by zone so part of the house keeps power, though expect the whole supply to be off for about a day when the consumer unit is changed, and expect dust and noise throughout first fix [2][7].

For a whole-house rewire, many homeowners conclude that moving out for the noisy fortnight is worth it. An empty house cuts labour costs by roughly 10 to 20 per cent, which often offsets a short stay elsewhere [2][3].

Does your house actually need rewiring?

Age is the strongest indicator. Electrical Safety First, the UK consumer charity for electrical safety, puts it plainly:

"If a property is more than 30 years old and has the original wiring, it is likely to need updating, at least in part, to meet modern standards, including replacing the fuse box."

That guidance, and the warning signs below, come from Electrical Safety First's homeowner guidance [8].

Signs that point towards a rewire:

• Rubber, fabric or lead-insulated cabling (common in homes wired before the mid-1960s)
• An old fuse box with ceramic fuse carriers instead of a modern consumer unit
• No RCD (Residual Current Device) protection, the safety device that cuts power in a fault
• Frequent tripping, blown fuses or flickering lights
• Scorched or warm sockets, burning smells, or buzzing from fittings [8]

The proper diagnostic is an Electrical Installation Condition Report (EICR): a registered electrician inspects and tests the existing installation and grades any defects. In London an EICR costs about £200 to £300 for a three-bed house in 2026, with smaller flats from around £120 [9]. Electrical Safety First recommends an EICR at least every 10 years for owner-occupied homes; for rented homes in England, landlords have been legally required to hold one no more than five years old since June 2020 [10].

Commissioning an EICR before asking for rewire quotes is money well spent. It tells you whether you need a full rewire, a partial one, or just targeted fixes, and it stops a quote being padded with work you do not need.

The rules: Part P, BS 7671 and the paperwork

A full rewire always creates new circuits, so it is always notifiable work under Part P of the Building Regulations in England, the section that governs electrical safety in dwellings [11][12][13]. There are two legal routes to compliance.

Route one: use a registered electrician. An electrician registered with a government-approved competent person scheme, such as NICEIC or NAPIT, can self-certify the work. The scheme notifies building control for you, at no extra fee, and you receive two documents: an Electrical Installation Certificate (EIC) confirming the work meets BS 7671, and a Building Regulations Compliance Certificate confirming Part P compliance [11]. You will need both when you sell the property; conveyancers and mortgage lenders ask for them. Some registered firms also carry the Government-endorsed TrustMark quality mark.

Route two: notify building control yourself. If you use a non-registered electrician, you must notify your local authority building control before work starts and pay for inspection, typically £200 to £300 though fees vary by council [13]. In practice route one is simpler, usually cheaper, and the standard choice for rewiring.

The standard the work must meet is BS 7671, the IET Wiring Regulations. As of June 2026 the current edition is BS 7671:2018 with Amendment 4, published on 15 April 2026, with a transition period running to 15 October 2026 [14][15].

This is not red tape you can skip. Electrical Safety First's guidance on Part P is blunt:

"All homeowners and landlords must be able to prove that all electrical installation work meets Part P, or they will be committing a criminal offence."

That warning appears in the charity's Part P guidance for homeowners [11]. Rewiring is also emphatically not a DIY job: beyond the legal position, the charity's advice to DIYers is that electrical repairs should be left to the professionals [16]. Uncertified work risks your safety, your insurance and your sale.

Rewiring a Victorian or period London home

A large share of London's housing is Victorian or Edwardian, and these homes are where rewiring quotes climb. Lath-and-plaster walls crack if chased carelessly, original mouldings need protecting, joists can be awkward to drill, and any home not rewired since the 1960s may still hide lead- or fabric-sheathed cable. Expect the 15 to 30 per cent period premium noted earlier, and 20 to 40 per cent more again for listed buildings [6].

If your home is listed, consent from your local planning authority is likely to be needed before chasing cables into historic fabric, and carrying out works without required consent is a separate offence from the Building Regulations regime. In conservation areas, internal electrical work does not normally need consent, but check before routing anything externally. Speak to your borough's conservation or planning team before work starts; a good period-property electrician will route cables through floor voids, cellars and risers to minimise damage to original surfaces [6].

Partial rewires and smaller jobs

You do not always need the full job. A partial rewire, such as one floor after a loft conversion, or new kitchen and bathroom circuits, typically costs £1,500 to £5,000 in London [2]. Partial work is still notifiable under Part P when it adds new circuits or touches special locations such as bathrooms [13].

If the cabling is sound and only the fuse board is dated, a consumer unit replacement alone runs about £500 to £900 for most London homes [17]. We cover that job in detail in our fuse box upgrade cost guide.

One caution: rewiring in stages spreads the cost but usually increases the total, because each visit carries its own set-up, certification and making-good costs [3]. If you can do it once, do it once.

VAT on rewiring work

Most rewiring is charged at the standard 20 per cent VAT rate. There is one notable exception: if the property has been empty for two years or more, refurbishment work including rewiring can qualify for the reduced 5 per cent rate, with evidence such as council tax records [18]. Always check whether a quote includes VAT, and remember that smaller sole traders below the VAT registration threshold may not charge it at all, which can make like-for-like comparison misleading.

How to keep the cost down without cutting corners

1. Rewire during a renovation. If walls or floors are already open for a kitchen, bathroom or extension, the labour saving is substantial.
2. Get at least three itemised quotes from registered electricians, against the same written scope, so you are comparing the same job.
3. Clear the rooms, or move out. Labour is 60 to 70 per cent of a rewire, and an empty house is a faster house [2].
4. Bundle future circuits now. Adding an EV charger circuit, outdoor sockets or extra kitchen circuits during a rewire costs a fraction of retrofitting them later.
5. Start with an EICR, so the scope is evidence-based rather than guesswork [9].

And the things never to economise on: always use a registered electrician, never accept work without an EIC and Building Regulations Compliance Certificate, and never defer anything an EICR grades as immediately dangerous.

Frequently asked questions

How long does it take to rewire a three-bed house in London? Expect five to ten working days of electrical work for a typical three-bed semi, but two to three calendar weeks in total. The gap is the plastering stage between first fix and second fix, when chases are made good and must dry before fittings are connected [1][2].

Do you have to move out during a rewire? No, it is not required, but it is often worth it for a full rewire. Staying put means living around lifted floorboards, dust and planned power-offs, and occupied properties cost roughly 10 to 20 per cent more in labour. A phased, zone-by-zone rewire keeps part of the house usable [2][7].

How often should a house be rewired? There is no fixed legal interval. The working rule is every 25 to 30 years, as cable insulation degrades with age. Electrical Safety First recommends a professional inspection (an EICR) at least every 10 years for owner-occupied homes, and rental properties in England legally need one every five years [10].

Can you rewire a house in stages? Yes. Electricians can rewire floor by floor or circuit by circuit, which suits occupied homes and tight budgets. It usually costs more overall, because each stage repeats set-up, testing, certification and making good. A single full rewire is the cheaper route if you can accommodate it [3].

Does rewiring add value to a house? Not as a direct line on a valuation, but it materially helps a sale. Buyers, surveyors and mortgage lenders increasingly expect modern electrics with certificates, and an outdated installation flagged in a survey invites price negotiation or delay. Keep your EIC and compliance certificate safe; they are the proof.

What is the difference between an EICR and an EIC? An EICR (Electrical Installation Condition Report) is a health check on an existing installation and is how you find out whether rewiring is needed. An EIC (Electrical Installation Certificate) is issued when new work, such as a rewire, is completed, certifying it meets BS 7671 [9][3].

Finding a trusted electrician in London

A rewire is a once-in-a-generation job, and the electrician matters more than anything else on the quote. Find a trusted local electrician near you on loacally to compare verified local tradespeople, read reviews and request quotes in your borough. Planning other work while the house is upside down? See our London guides to fuse box upgrade costs and the cost to replace a bathroom tap.

Sources

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2. Route Electrical - House rewiring cost London 2026 - https://route-electrical.co.uk/house-rewiring-cost-london-2026/ - 2026.
3. Total Skills UK - Rewiring a house: the complete guide - https://www.totalskills.co.uk/guides/rewiring-a-house-guide - March 2026.
4. Total Skills UK - Electrician day rates - https://www.totalskills.co.uk/guides/electrician-day-rates - updated April 2026.
5. Logic4training - The cost to rewire a house in the UK - https://www.logic4training.co.uk/insights/the-cost-to-rewire-a-house-in-the-uk-the-homeowners-guide/ - updated 27 May 2025.
6. JH Electrical 247 - Rewiring an old property in London - https://jhelectrical247.co.uk/2025/08/rewiring-an-old-property-in-london-what-you-need-to-know/ - August 2025.
7. TNS Solutions - How much does it cost to rewire a house in London? - https://tnssolutions.co.uk/post/how-much-does-it-cost-to-rewire-a-house-in-london/ - 13 March 2026.
8. Electrical Safety First - Do I need a rewire? - https://www.electricalsafetyfirst.org.uk/guidance/your-questions-answered/questions/do-i-need-a-rewire/ - checked June 2026.
9. Electrical Testing London - EICR certificate cost London - https://www.electricaltestinglondon.co.uk/blog/eicr-certificate-cost-london--2026-prices-by-property-size - June 2026.
10. Electrical Safety First - How often should a house be rewired? - https://www.electricalsafetyfirst.org.uk/guidance/your-questions-answered/questions/how-often-should-a-house-be-rewired/ - checked June 2026.
11. Electrical Safety First - Part P explained - https://www.electricalsafetyfirst.org.uk/find-an-electrician/part-p/ - checked June 2026.
12. Gov.uk - Approved Document P: electrical safety - https://www.gov.uk/government/publications/electrical-safety-approved-document-p - checked June 2026.
13. Total Skills UK - Notifiable electrical work - https://www.totalskills.co.uk/guides/notifiable-electrical-work - updated March 2026.
14. IET - BS 7671, 18th Edition Wiring Regulations - https://electrical.theiet.org/bs-7671-18th-edition-wiring-regulations/ - checked June 2026.
15. Electrical Safety First - Wiring regulations (BS 7671) - https://www.electricalsafetyfirst.org.uk/professional-resources/wiring-regulations/ - checked June 2026.
16. Electrical Safety First - Advice for DIYers - https://www.electricalsafetyfirst.org.uk/guidance/advice-for-you/diyers/ - checked June 2026.
17. Electrical Testing London - Fuse box upgrade cost in London - https://www.electricaltestinglondon.co.uk/blog/fuse-box-upgrade-cost-in-london--2026-price-breakdown - 2026.
18. Crunch - VAT on building work: zero, reduced and standard rates - https://www.crunch.co.uk/knowledge/article/vat-on-building-work-understanding-zero-reduced-and-standard-rates - checked June 2026.