Full & Partial House Rewiring · London

House Rewire Safe, Certified, Future-Ready

Full and partial rewiring to the current 18th Edition wiring regulations — new consumer unit, circuits, sockets, lighting, data and EV charging — by NICEIC-certified electricians, with floors and walls made good and the whole installation tested, certified and notified. Delivered under one fixed-price contract, on its own or within a wider renovation.

A Single Fixed-Price Contract
Designed, installed and certified in-house
Condition report (EICR)Included
New consumer unit & circuitsIncluded
Sockets, lighting & dataIncluded
Testing & certificationIncluded
Part P notificationIncluded
Making good & aftercareIncluded
103+
Completed Projects
NICEIC
Certified Electricians
18th
Edition BS 7671
Part P
Self-Certified
EICR
Condition Reports
EV &
Smart
Future-Ready
£10M
Fully Insured
RICS
Chartered Surveyors
£3k£35k
Partial to Large
Full Rewire
13
Programme Weeks
Electrical Work
Certified
EIC & Part P
100%
Fixed-Price
No Hidden Cost-Plus

A Rewire Done Once, Properly

The electrical installation is the one part of a house that can quietly become dangerous. Cabling degrades, old fuse boards offer none of the protection modern ones do, and decades of added sockets and spurs leave a patchwork that no longer matches how a family uses electricity. A rewire is how you put that right — not a cosmetic job, but the safety-critical backbone of the home, renewed to the current standard and ready for the next thirty years.

This page is for the house rewire, the full and partial rewire, the consumer unit upgrade and the period-property rewire — carried out to the current 18th Edition regulations by NICEIC-certified electricians. As a design-and-build contractor with directly-employed electricians, we deliver it under one fixed-price contract: the condition report, the new consumer unit and circuits, the sockets, lighting, data and EV provision, the testing and certification, and the making-good afterwards. On its own, or folded into a wider renovation — which is the most efficient time to do it.

A rewire is also the moment to future-proof. With floors up and walls open, adding EV charging, structured data cabling, smart lighting and heating infrastructure, and extra circuits for a kitchen, garden office or heat pump is straightforward and tidy — whereas retro-fitting them later means lifting floors and chasing walls all over again. We design the new installation around how you actually live and how you are likely to live, not just a like-for-like replacement.

What separates a good rewire from a poor one is partly the visible work — tidy chasing, sensible socket positions, a well-labelled board — and partly the invisible: correct cable sizing, proper earthing and bonding, RCBO protection on every circuit, and thorough testing before anything is signed off. These are the things that make the installation genuinely safe, and they are exactly what the certification process exists to verify.

We rewire homes across NW3, NW8, NW1, NW11, N6, W1 and SW London — period houses and flats with ageing installations, properties being renovated, and homes being future-proofed for EV charging and smart-home technology — each tested, certified and notified to Building Control.

Six Kinds of Rewiring Job

From a full strip-out to a targeted upgrade, the right scope depends on the condition of your installation and your plans. These are the six we carry out most.

Complete

Full House Rewire

Every cable, the consumer unit, all sockets, switches and fittings replaced and brought to the 18th Edition. The right choice for an old or never-upgraded installation — a clean slate, safe and certified.

ScopeWhole house
DisruptionSignificant
Targeted

Partial Rewire

Renewing the consumer unit and the most worn or non-compliant circuits, while keeping sound wiring in place. Less disruptive and lower cost — appropriate only where the rest of the installation genuinely tests safe.

ScopeSelected circuits
DisruptionModerate
Protection Upgrade

Consumer Unit Upgrade

Replacing an old fuse board with a modern unit with RCBO protection and surge protection — a significant safety upgrade in itself, where the existing circuits test sound but the board is outdated.

ScopeBoard + protection
DisruptionLow
Heritage Care

Period Property Rewire

Rewiring a period or listed home with care for cornices, panelling, plaster and original features — routing cables sympathetically, lifting and relaying floors carefully, and minimising chasing into historic fabric.

ScopeWhole house
DisruptionCarefully managed
Apartments

Flat Rewire

Rewiring a flat or maisonette, coordinated with the building's communal supply and any freeholder or managing-agent requirements — including the licence-to-alter process where a lease requires it.

ScopeWhole flat
DisruptionManaged
Most Efficient

Rewire With Renovation

The rewire carried out within a wider renovation, when floors are up and walls are open anyway — first fix with the other trades, second fix as rooms are finished. Avoids doing the disruption and making-good twice.

ScopeWhole house
DisruptionAbsorbed in works

What a House Rewire Actually Includes

A rewire is safety-critical, and the detail matters. Every element below is delivered, tested and certified under one fixed-price agreement.

Condition Report (EICR)

Before we touch anything, an Electrical Installation Condition Report tells you exactly what is unsafe, non-compliant or worn — so the scope is based on the real condition of your wiring, not a sales pitch for a full rewire you may not need.

New Consumer Unit

A modern consumer unit with RCBO protection on every circuit, surge protection and (where recommended) arc-fault detection — clearly labelled, properly rated and the heart of a safe installation.

Circuits & Cabling

New cabling sized correctly for each circuit — lighting, sockets, kitchen, boiler, showers, garden — run safely under floors and within walls, with sensible circuit separation so a fault in one area does not take out the house.

Sockets & Switches

Plenty of sockets where you actually need them — with USB-C and USB-A integrated — in the finish you choose, from white moulded to brushed brass, matt black or polished nickel. No more extension leads trailing across the room.

Lighting Circuits

New lighting circuits with LED-ready dimming, multi-way switching and zoning — and the wiring for a layered, scene-controlled scheme where you want it. Designed around how each room is used, day and night.

Data & Networking

Cat6 structured cabling to key rooms, a central network point and Wi-Fi access points — a reliable wired backbone for home working and streaming, designed in while the walls are open.

EV Charging Supply

A dedicated, properly protected supply for an electric-vehicle charge point — installed now or pre-provisioned for the future — sized so it works alongside the rest of the house load.

Fire & CO Detection

Mains-linked, interlinked smoke and heat alarms and CO detection to BS 5839-6 — the life-safety system that a rewire is the right moment to bring fully up to standard throughout the house.

Smart Home Infrastructure

The cabling and provision for smart lighting, heating and AV — Lutron, Hive, Crestron or Control4 — designed in during the rewire, so the system can be added cleanly without lifting floors again.

Earthing & Bonding

Correct main earthing and protective bonding to gas, water and structural metalwork — the fundamental safety provision that an old installation often lacks, and which a proper rewire always puts right.

Testing & Certification

The whole installation tested, an Electrical Installation Certificate issued, and the work notified to Building Control under Part P — the documents that prove it is safe and compliant, for you, your insurer and a future buyer.

Making Good

Floors relaid, chases filled, walls and ceilings made good and ready for decoration — so the house is left tidy, not riddled with the scars of the rewire.

Six Signs Your House Needs Rewiring

A rewire is not always necessary — but these are the signs that it is, and the reason we always start with a condition report rather than an assumption.

i.

An Old Fuse Board

A board with rewireable (ceramic) fuses or no RCD offers none of the shock and fire protection of a modern consumer unit. One of the clearest signs an installation is overdue.

ii.

Old Cabling

Rubber, fabric or lead-sheathed cabling — common in pre-1960s homes — degrades and becomes brittle and unsafe. If you can see it in the loft or under floors, the installation almost certainly needs replacing.

iii.

Frequent Trips or Blown Fuses

An installation that repeatedly trips or blows fuses is telling you it cannot cope or has a fault. It is a warning, not an inconvenience to be worked around with a stronger fuse.

iv.

Scorch Marks or a Burning Smell

Any discolouration around sockets and switches, or a faint burning smell, indicates overheating — a genuine fire risk that should be assessed urgently.

v.

Too Few Sockets

Extension leads and adaptors everywhere mean the installation was designed for a different era of electrical demand. A rewire designs in the sockets and circuits a modern home actually uses.

vi.

Never Upgraded

An installation more than 25–30 years old, or that has never been upgraded, is likely due regardless of symptoms. An EICR confirms the position objectively, so the decision is based on fact.

Eight Stages, From Brief to Handover

A rewire is safety-critical and disruptive, so it rewards a careful, well-sequenced process.

0
Stage 0 · Brief

Free Consultation

We discuss your concerns, your plans and your budget — whether the rewire is standalone or part of a renovation. No charge, no obligation.

Week 0 · Free
1
Stage 1 · Condition Report

EICR & Assessment

An Electrical Installation Condition Report establishing exactly what is unsafe or non-compliant — so the scope and price are based on the real condition of your installation.

Within 1 week
2
Stage 2 · Design

Circuit & Points Plan

A plan of circuits, socket and switch positions, lighting, data, EV and smart provision — designed around how you live, and agreed with you before any cable is run.

1 week
3
Stage 3 · Programme

Sequence & Decant Plan

A week-by-week programme, the sequence of rooms, and a plan for keeping essential power on or decanting — so disruption is managed, not a surprise.

Pre-start
4
Stage 4 · First Fix

Cabling & Back-Boxes

Floors lifted, walls chased, new cabling run and back-boxes set — the bulk of the disruptive work, carried out methodically with the house protected.

Days to 1 week
5
Stage 5 · Second Fix

Board, Accessories & Test

The new consumer unit, sockets, switches and fittings installed, then the whole installation tested rigorously to BS 7671.

Days
6
Stage 6 · Certify & Make Good

Certification & Handover

The Electrical Installation Certificate issued and the work notified under Part P, floors and walls made good, and a handover walk.

Completion
7
Stage 7 · Aftercare

Defects Period & Warranty

A 12-month defects period and a 10-year workmanship warranty on the works.

12 months + 10-year warranty

Four Tiers, Honestly Drawn

What a rewire costs depends on the size, the number of points and the level of future-proofing. Here is how our four tiers differ.

Element
HeritageStandard
ConsideredHigh-End
ConnoisseurPremium
AtelierSuper-Prime
Consumer unit
RCBO board, SPD
RCBO + AFDD key circuits
Full AFDD, sub-boards
Multiple boards, monitoring
Accessories
Quality white moulded
Screwless, USB sockets
Brass / nickel / black
Bespoke designer ranges
Lighting
LED-ready, dimmable
Zoned, multi-way
Lutron Caseta / RA2
Lutron HomeWorks, scenes
Data & network
Provision only
Cat6 to key rooms
Cat6a, central rack
Full structured cabling, AV
EV & future-ready
EV supply provision
EV charge point
EV + heat-pump supply
Solar / battery ready
Detection
Mains-linked alarms
Smoke, heat & CO
Integrated detection
Smart, monitored
Indicative (full, 3-bed)
£8k–£11k
£11k–£16k
£16k–£24k
£24k–£35k+

Where Your Budget Actually Goes

For a representative full rewire of a 3-bedroom house at around £13,000, here is the honest breakdown of where every pound is spent.

First fix labour (cabling)
30%
Second fix labour (accessories)
16%
Cable & materials
14%
Consumer unit & protection
8%
Accessories & fittings
9%
Making good (floors, walls)
13%
Testing & certification
5%
Design & management
3%
Contingency (held by client)
2%

The Standard We Wire To

Every rewire is carried out to the current regulations. Here is what that means in practice.

Regulations & Protection

  • Standard: BS 7671:2018 + Amendment 2 (the 18th Edition wiring regulations)
  • Consumer unit: RCBO protection per circuit, Type 2 surge protection (SPD)
  • AFDDs: Arc-fault detection devices where recommended — e.g. bedroom and lounge circuits
  • Earthing: Main earthing and protective bonding to gas, water and structural metalwork

Circuits & Cabling

  • Cable: Correctly sized twin-and-earth or singles in conduit, de-rated for installation method
  • Separation: Sensible circuit separation so a fault is contained, not whole-house
  • Dedicated circuits: Kitchen, cooker, shower, immersion, EV, garden and boiler as required
  • Lighting: LED-compatible dimming, multi-way and zoned switching

Future-Ready

  • Data: Cat6/Cat6a structured cabling and access points
  • EV: Dedicated, protected supply for a 7kW charge point
  • Smart: Provision for Lutron, Hive, Crestron or Control4
  • Renewables: Provision for heat pump, solar and battery where planned

Testing & Certification

  • Testing: Full dead and live testing of the installation to BS 7671
  • Certificate: Electrical Installation Certificate (EIC) issued
  • Part P: Notified to Building Control via NICEIC self-certification
  • Detection: Mains-linked smoke, heat and CO alarms to BS 5839-6
A rewire is the one improvement nobody sees and everybody relies on. You will never admire the cabling in your walls — but it is the difference between a home that is safe and one that is quietly waiting to go wrong.
— Hampstead Renovations · Studio Statement

Certification, Part P and Why It Matters

A rewire is only finished when it is tested, certified and notified — the paperwork is not a formality, it is the proof your installation is safe.

Rewiring is notifiable work under Part P of the Building Regulations, which means it must be either signed off by your local Building Control or self-certified by a registered competent person. As NICEIC-certified electricians, we self-certify the installation and notify Building Control on your behalf, so you receive both an Electrical Installation Certificate (EIC) — confirming the work meets BS 7671 — and the Building Regulations compliance certificate, without you having to arrange or pay for separate inspections.

These documents matter well beyond the day the work is done. Your home insurer may ask for evidence that electrical work was done by a registered electrician; a mortgage lender's surveyor will look for it; and when you sell, the buyer's solicitor will request the certificates. A rewire without them — done by an uncertified electrician or DIY — is a problem that surfaces at exactly the wrong moment and can hold up a sale or an insurance claim.

We also issue an Electrical Installation Condition Report (EICR) as a standalone service, whether or not you go on to rewire — useful for landlords (who are legally required to have one every five years), buyers doing due diligence, and anyone who simply wants to know the true condition of their wiring. For the wider electrical capability, see electrical services; to rewire as part of a project, see house renovation. For an early budget, use the cost calculator.

A Full Rewire, Week by Week

A representative programme for a full rewire of a 3-bedroom house. Yours will differ by size and whether it is part of a renovation, but this is the sequence.

Stage
Phase
Activity
Pre
Report & Design
EICR carried out, circuit and points plan agreed, programme and decant plan set.
01
First Fix
Floors lifted, walls chased, new cabling run throughout, back-boxes set, data and EV provision installed.
01–02
Board & Second Fix
New consumer unit installed and energised, sockets, switches, lights and detection fitted.
02
Testing
Full dead and live testing of every circuit to BS 7671, faults corrected, results recorded.
02
Certify
Electrical Installation Certificate issued, work notified to Building Control under Part P.
02–03
Make Good & Handover
Floors relaid, chases filled, walls and ceilings made good ready to decorate, handover walk.

What Sets Our Rewires Apart

A rewire is safety-critical, and not all rewires are equal. Here is what ours gives you.

i

NICEIC Certified

Registered, competent electricians who self-certify and notify the work — you get proper certificates, not a verbal assurance.

ii

Condition Report First

We assess the real state of your wiring before recommending scope — honest about whether you need a full or partial rewire.

iii

Future-Proofed

EV, data, smart-home and renewables provision designed in while the walls are open — ready for the next decade.

iv

Directly-Employed Trades

Our core electricians are PAYE staff — continuity of standard, not a rotating crew.

v

Tidy & Made Good

Floors relaid and walls made good ready to decorate — the house left workable, not wrecked.

vi

Part of the Bigger Picture

As a design-and-build contractor, we sequence the rewire cleanly within a renovation — no doing the disruption twice.

vii

£10M Insurance

Professional indemnity and public liability at £10M, well above industry standard.

viii

10-Year Warranty

An insurance-backed workmanship warranty protecting the work long after completion.

Explore Related Electrical & Home Work

A rewire often sits within a wider project. Start here, or speak to us about combining it under one contract.

Rewiring & Renovation Proof

Comparable projects and standards across our work. Browse the case-study hub and the wider portfolio, or contact us to arrange a condition report.

Detailed Answers to the Questions That Matter

What does a full house rewire involve?

A full rewire replaces all the electrical cabling, the consumer unit (fuse board), sockets, switches and light fittings throughout the house, bringing the whole installation up to the current wiring regulations (BS 7671 18th Edition). It typically includes a new consumer unit with RCBO protection, new circuits for lighting, sockets, the kitchen, the boiler and showers, smoke and CO detection, proper earthing and bonding, and full testing and certification. We agree exactly what is renewed and where new points go before work starts, so there are no surprises.

How do I know if my house needs rewiring?

Tell-tale signs include an old fuse board with rewireable fuses or no RCD, cabling with rubber, fabric or lead insulation (common pre-1960s), round-pin sockets, frequent tripping or blown fuses, scorch marks or a burning smell, and not enough sockets so extension leads are everywhere. As a rule of thumb, an installation more than 25–30 years old or that has never been upgraded is likely due. The reliable answer is an Electrical Installation Condition Report (EICR), which we can carry out and which tells you exactly what needs doing.

How much does a house rewire cost in London in 2026?

As a guide for London: a partial rewire runs from around £3,000–£8,000; a full rewire of a typical 2–3 bedroom house £8,000–£16,000; and a larger 4–6 bedroom house, or a high specification with smart home, data and EV charging, £16,000–£35,000+. Cost depends on the size, the number of points, the specification, and how much making-good and decoration is needed afterwards. Use the cost calculator for an early band, then we confirm at survey.

How long does a rewire take, and can I live in during it?

A full rewire of a typical house takes around 1–3 weeks for the electrical work, plus making-good and decoration. You can sometimes remain in the house for a partial rewire, but for a full rewire it is disruptive — floors are lifted, walls are chased and the power is off in stages — so many clients move out or decant room by room. We plan the sequence to minimise disruption and, where you must stay, keep essential circuits live as long as possible.

What is the difference between a full and a partial rewire?

A full rewire replaces the entire installation; a partial rewire renews only part of it — for example upgrading the consumer unit and the most worn circuits, or rewiring a kitchen and bathroom while leaving sound circuits in place. A partial rewire is cheaper and less disruptive but is only appropriate where the rest of the installation is genuinely safe and compliant. We carry out a condition report first and recommend honestly which you need, rather than over- or under-specifying.

Will you need to lift floors and chase walls, and how much mess is there?

Some disruption is unavoidable in a rewire — cables run under floors and within walls, so floorboards are lifted and channels (chases) are cut into walls for cables and back-boxes. We work methodically, protect the house, contain dust as far as possible, and make good the floors and walls afterwards. Where the rewire is part of a wider renovation with floors up and walls open anyway, the disruption is largely absorbed into the bigger project — one reason to rewire during a renovation.

Do I get a certificate, and is the work notifiable under Part P?

Yes. A rewire is notifiable work under Part P of the Building Regulations, and as NICEIC-certified electricians we self-certify the installation and notify Building Control on your behalf. You receive an Electrical Installation Certificate confirming the work complies with BS 7671, plus the Building Regulations compliance certificate. These are important documents for safety, for your insurer and for a future sale, and we provide them as standard.

Will the rewire meet the 18th Edition and current regulations?

Yes — all our rewiring is carried out to BS 7671:2018 + Amendment 2 (the 18th Edition), the current wiring regulations. That means a consumer unit with RCBO protection on circuits, AFDDs (arc fault detection) where recommended, surge protection, correct earthing and bonding, and smoke and CO detection to BS 5839-6. Working to the current standard is not just compliance — it is the difference between an installation that protects your family and one that does not.

Can you add EV charging, smart home and data while rewiring?

Yes — a rewire is the ideal moment to future-proof, because the walls and floors are already open. We routinely add an EV charging supply, Cat6 structured data cabling and Wi-Fi access points, smart lighting and heating infrastructure (Lutron, Hive and similar), AV pre-wiring and additional circuits for the kitchen, garden office or a heat pump. Designing these in during the rewire is far cheaper and tidier than retro-fitting them later.

Should I rewire before or during a renovation?

During — wherever the rewire is part of a wider project. A rewire involves lifting floors and opening walls, which is exactly what happens in a renovation anyway, so combining them avoids doing that disruption and making-good twice. As a design-and-build contractor we coordinate the rewire within the renovation programme — first fix with the other trades, second fix as the rooms are finished — so it is sequenced cleanly and you are not paying to chase the same walls twice.
Client References

What Our Clients Say

★★★★★

“I would like to thank Ross and his team for their consistent commitment to quality and their unerring reliability. They delivered our property to specification and on time, proving to be an extremely effective, experienced, and proactive contractor.”

James Ward — Investment Director, Belgravia
★★★★★

“We have worked with Ross and his company many times. They are extremely professional and hardworking individuals who can work under any circumstances. There was no variation to the works.”

Cirus Rehman — Finance Director, Grosvenor Street, Mayfair

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Begin Your House Rewire

Book a no-obligation consultation at our Finchley Road design studio or in your home. The first meeting is free, lasts 60–90 minutes, and concludes with an honest indication of feasibility, programme and budget band. No salespeople. No pressure.

Call us020 8054 8756
Email uscontact@hampsteadrenovations.co.uk
Visit our studio250 Finchley Road, London NW3

Free House Rewire Consultation

Site visit · feasibility assessment · outline cost estimate · programme indication. No obligation. Saturday appointments available.

Enquire before 2pm — same-day call-back (Mon–Fri).

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