How Much Does a Full House Rewire Cost in London in 2026?

What counts as a "full rewire"?

A full rewire replaces the fixed cabling throughout the property from the meter tails to every socket, switch and light. It typically covers:

• New consumer unit with RCBO protection and SPDs
• Replacement of all lighting circuits with modern LED-ready wiring
• New ring or radial socket circuits with adequate outlets per room
• Dedicated circuits for cooker, shower, immersion, EV, oven, hob
• Modern smoke, heat and CO alarms on mains with battery backup
• Full main and supplementary bonding to comply with 18th Edition

You end up with an installation that will last 30 – 40 years and is fully documented for insurance, resale and lettings.

2026 London rewire cost guide

Prices below are guide totals for a standard fully-fitted rewire, including consumer unit, certificates and making-good to a "paint-ready" finish. VAT included.

• 1-bed flat (~50 m²): £3,800 – £5,500
• 2-bed flat (~65 m²): £4,800 – £7,000
• 3-bed terrace (~85 m²): £5,900 – £8,500
• 3-bed semi (~100 m²): £6,800 – £9,500
• 4-bed semi/detached: £8,500 – £12,500
• 5-bed period property or listed home: £12,000 – £20,000+

Central London and conservation-area properties sit at the higher end because chase routes, floor lifting and reinstatement all cost more.

What drives the price up (or down)?

Several factors have a big impact on the final figure:

• Property age: Victorian and Edwardian properties often have lath-and-plaster ceilings that need extra care.
• Occupied vs empty: Working around furniture and residents adds 20 – 30% to labour.
• Floor coverings: Solid oak and engineered floors need careful lifting or surface-mount cable routing.
• Bathrooms & kitchens: Additional zones, EV chargers and induction hobs push circuit counts up.
• Smart home layer: Adding Lutron, Loxone, KNX or Shelly increases materials and commissioning time.

How long does a rewire take?

Typical clear-property timings from our London jobs:

• 1-bed flat: 4 – 6 working days
• 2/3-bed flat or terrace: 6 – 10 working days
• 3/4-bed house: 10 – 15 working days
• Large period home: 3 – 6 weeks

Living in the property during works? Add roughly 30% and expect two rooms to be worked on at a time.

The unavoidable extras — plan for them

The number-one cause of budget surprises is not electrical work, it is making good. Ask any quote to be explicit about:

• Plaster patching over chases and back boxes
• Ceiling repairs after lighting cable pulls
• Lifting and re-laying carpet or floorboards
• Redecoration after works

We work with a trusted plastering and decorating team and can bundle their fees into a single fixed quote if you prefer.

Certificates you should always receive

At handover, insist on:

• Electrical Installation Certificate (EIC) signed by the NICEIC-registered inspector
• Schedule of Test Results for every new circuit
• Building Control notification via NICEIC (we do this automatically)
• A circuit chart inside the consumer unit
• Photographic records of hidden joints and cable routes

You will need all of these to sell, remortgage or let the property.

Ready to rewire?

Book a free 60-minute survey with a NICEIC engineer. We will walk you through the scope, timings and a fixed-price quote — no hard sell. Request your survey or call 0203 503 1240.