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

A full rewire of a typical three-bedroom house in London costs roughly £4,500 to £6,500 in 2026 (and up to around £8,000 for larger or harder-access properties) — compare verified local electricians free on Energy North and get quotes direct, with no fees and no commission.

Rewiring is one of the bigger jobs a London homeowner will ever take on, so it pays to understand what drives the price before you start collecting quotes. Below is a clear, 2026 breakdown of typical costs, how long the work takes, the rules you need to be aware of, and how to find a trustworthy electrician near you.

Typical London rewire costs by property size (2026)

Prices in London run higher than the national average — expect a London and South East premium of roughly 20–30% compared with the rest of the UK. As a rough guide for 2026:

One-bedroom flat: £2,800–£3,800
Two-bedroom house or flat: £3,200–£4,500
Three-bedroom house: £4,500–£6,500
Four-bedroom house: £6,500–£9,500

For comparison, the average full house rewire across the UK as a whole currently sits between £5,000 and £8,000 for a typical three-bedroom property. A rewire that might cost £7,000 in the Midlands can reach £9,000 or more in London for the same size of home.

These figures usually include labour, materials, a new consumer unit (fuse board), certification, and the Building Control notification. Always confirm exactly what is and isn't included when you compare quotes.

What affects the price?

Several factors push a rewire up or down the range:

Property size and number of circuits — more rooms means more cabling, sockets, and final circuits.
Age and construction — older period homes with solid walls, lath-and-plaster, or decorative features take longer and cost more.
Occupied vs empty — an empty property is quicker and cheaper to work in than one full of furniture and people.
Ease of access — suspended timber floors and accessible lofts make cable runs faster; concrete floors and finished plaster do the opposite.
Extras — adding extra sockets, smart controls, outdoor power, or an EV charger at the same time will add to the total but is often cheaper to do in one visit.

How long does a rewire take?

For an average London three-bedroom house, the hands-on electrical work typically takes 5 to 7 working days. Flats with easy access often finish in 4–6 days, while a detached period property can take 12–14 days. Remember that fresh plaster needs time to dry, so the overall project — first fix, plastering, second fix, and making good — usually spans a few weeks of elapsed time even though the wiring itself is faster.

The rules: Part P and certification

Rewiring is notifiable work under Part P of the Building Regulations and must comply with BS 7671 (the 18th Edition Wiring Regulations). That means the job must either be carried out by an electrician registered with a government-approved competent person scheme who can self-certify the work, or be notified to your local authority Building Control before it starts. On completion you should receive an Electrical Installation Certificate (EIC), and the work is registered with Building Control. Keep this paperwork safe — you'll need it when you sell or let the property, and landlords are legally required to hold a valid electrical safety report.

How to find a reliable London electrician

The simplest way to get a fair price is to compare several local electricians at once. On Energy North, posting a rewiring job is free — there are no subscriptions and no commission. Verified local tradespeople reply to you direct, so you stay in control of who you talk to.

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Frequently asked questions

1. How much does it cost to rewire a 3-bedroom house in London? In 2026, a full rewire of a three-bedroom London house typically costs £4,500–£6,500, and up to around £8,000 for larger properties or those with difficult access. The exact figure depends on circuit count, property age, and whether the home is occupied.

2. Why is rewiring more expensive in London? London and the South East carry a premium of roughly 20–30% over the UK average, driven by higher labour rates and operating costs. The same job that costs £7,000 elsewhere can reach £9,000 or more in the capital.

3. How long does a full house rewire take? The electrical work usually takes 5–7 working days for a three-bedroom home, 4–6 days for an easy-access flat, and 12–14 days for a large period property. Because plaster must dry, the full project often spans a few weeks.

4. Do I need certification after a rewire? Yes. A rewire is notifiable under Part P and must meet BS 7671. You should receive an Electrical Installation Certificate (EIC), and the work must be registered with Building Control. Keep the documents for selling or letting the property.

5. How do I find a trustworthy electrician near me? Post your job free on Energy North and verified local electricians will reply to you direct — no subscriptions, no commission, and you choose who to hire.

Related guides

Prices are indicative 2026 market ranges and vary by property and specification. Always obtain written quotes. Energy North is a free UK trades marketplace — homeowners post jobs free, verified local tradespeople reply direct, with no subscriptions and 0% commission.

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In North London, Energy North Ltd rewires and issues the certificate directly: see the electrician prices or book online.

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