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Fuse Board Replacement London 18th Edition Consumer Unit Upgrades

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/ Electrical installation / Fuse board replacement

Consumer Unit Replacement: 18th Edition, RCBO-Protected & Smart-Ready

Your fuse board, or consumer unit, is the most important safety device in your property. Old, outdated units with rewirable fuses are a significant fire risk and offer poor protection against electric shock. Our NICEIC-certified electricians specialise in fuse board replacement across Northwest and Southwest London, upgrading your system to a modern 18th Edition consumer unit. Ensure your home is safe, compliant, and ready for the future.

Why Choose Us & Our Value

NICEIC six-year Platinum Promise warranty badge — consumer unit replacement guarantee London electricalworks

5-Year Guarantee

All our installation work is covered by a 5-year NICEIC Platinum Promise guarantee, giving you complete peace of mind.

NICEIC electrician writing fixed-price fuse board quote — transparent RCBO upgrade London GThink Ltd

Free, No-Obligation Quote

We provide a detailed, fixed-price quote after a thorough on-site survey. What we quote is what you pay.

Certified electrical installation quality seal — BS 7671 testing and Part P notification London

Certified Quality

As NICEIC Approved Contractors, all our work is certified to BS 7671 standards, ensuring maximum safety and compliance.

Our Technology & Equipment Partners

Schneider Electric Acti9 consumer unit brand logo — BS 7671 fuse board upgrades by NICEIC electricalworks
Eaton MEM distribution and protection brand logo — RCBO consumer units for London full rewires
ABB S200 miniature circuit breaker brand logo — premium distribution equipment London electrical installations
Siemens Sentron protection brand logo — commercial distribution boards London electrical contractors
MK Electric wiring accessories brand logo — sockets and switches for London refurbishments
Schneider Electric Acti9 consumer unit brand logo — BS 7671 fuse board upgrades by NICEIC electricalworks
Eaton MEM distribution and protection brand logo — RCBO consumer units for London full rewires
ABB S200 miniature circuit breaker brand logo — premium distribution equipment London electrical installations
Siemens Sentron protection brand logo — commercial distribution boards London electrical contractors
MK Electric wiring accessories brand logo — sockets and switches for London refurbishments
Schneider Electric Acti9 consumer unit brand logo — BS 7671 fuse board upgrades by NICEIC electricalworks
Eaton MEM distribution and protection brand logo — RCBO consumer units for London full rewires
ABB S200 miniature circuit breaker brand logo — premium distribution equipment London electrical installations
Siemens Sentron protection brand logo — commercial distribution boards London electrical contractors
MK Electric wiring accessories brand logo — sockets and switches for London refurbishments

Our 4-Step Installation Process

01

Consultation & Quote

We start with a thorough on-site visit to assess your current setup and discuss your needs.

02

Preparation & Safety

Our team prepares the work area, ensuring safety and minimising disruption before the planned power-off.

03

Installation

The old board is safely removed, and the new 18th Edition unit is professionally installed and wired.

04

Testing & Certification

We conduct a full test of all circuits and provide you with all the necessary NICEIC certification.

Our Consumer Unit Upgrade Process

Initial Safety & System Audit

Before any work begins, we conduct a full audit of your existing installation. This includes testing all circuits to identify any pre-existing faults (like poor earthing) that must be rectified before a new, sensitive 18th Edition board can be safely installed.

NICEIC electrician testing Zs on outgoing circuits — BS 7671 verification before energising LondonPre-installation cable schedule audit — maximum demand for London consumer unit upgrade

Safe Isolation & Removal

We coordinate with you for a planned power outage. Our electrician will safely isolate the incoming supply, disconnect all circuits, and carefully remove the old fuse board, ensuring all surrounding areas are protected.

Isolator off and old fuseboard stripped out — safe removal per BS 7671 London electricalworksCertificate photo of previous fuse board — EICR C2 remediation evidence London

Installation of 18th Edition Unit

We install a new, metal-clad 18th Edition consumer unit from a premium brand (e.g., Schneider, Eaton). We fit the main switch, surge protection (if required), and individual RCBOs or dual RCDs as specified in your quote, ensuring all wiring is neat and secure.

Mounting new metal consumer unit enclosure — RCD and SPD wiring first fix London NICEICCompleted RCBO consumer unit with surge protection — 18th Edition compliant London

Full Testing & Certification

This is the most critical step. We re-connect and test every single circuit to BS 7671 standards, **including testing with an infrared camera to check for any hot spots.** We provide you with a full Electrical Installation Certificate (EIC), register the work with Building Control (Part P), and provide our 6-year NICEIC guarantee.

Megger MFT on new consumer unit — insulation and RCD test results recorded LondonEICR and Electrical Installation Certificate folder — landlord compliance pack London

What Our Clients Say

James & Chloe P.

Richmond, Southwest London

★★★★★

"We needed to upgrade our old rewirable fuse box. The electrician from Electrical Works was fantastic. He explained the difference between RCDs and RCBOs, and the installation was incredibly neat. We feel so much safer now."

David Chen

Hampstead, Northwest London

★★★★★

"Our power kept tripping. The team identified that our old board couldn't cope. They replaced it with a new 18th Edition unit in just a few hours. No more nuisance trips, and the whole process was professional from start to finish."

Aisha Khan

Willesden Green, Northwest London

★★★★★

"As a landlord, I needed to get my property compliant for an EICR. Electrical Works handled the consumer unit upgrade quickly and affordably. They provided all the right certification straight away. A five-star service."

Tom Sterling

Putney, Southwest London

★★★★★

"From the initial quote to the final test, the service was flawless. They installed a new board with full RCBOs and even labelled every circuit clearly. It's the high-quality, professional service you hope for. Highly recommended."

Essential Fuse Board Advice

Vintage rewirable fusebox with ceramic carriers — unsafe for modern loads London replacement priority

Recognise an Old Fuse Board

If your board has a wooden back, cast-iron switches, or round 'pull-out' fuses, it is decades old and lacks critical safety features. It should be replaced as a priority.

Single-pole RCBO device on DIN rail — per-circuit RCD plus overcurrent protection London BS 7671

Understand RCBO vs. RCD

A dual RCD board is common, but an RCBO board is superior. RCBOs protect individual circuits, so if your toaster faults, it won't trip the lights on your entire ground floor.

Consumer unit with Type 2 surge protection module — protects electronics per 18th Edition London

Do You Need Surge Protection?

18th Edition regulations now recommend Surge Protection Devices (SPDs) for most homes to protect sensitive electronics (TVs, computers) from power surges.

Landlord EICR paperwork with pass outcome — five-year electrical safety compliance London

Compliance for Landlords

It is a legal requirement for rental properties to have a satisfactory EICR. A primary cause of a 'fail' (C2 code) is an old fuse board without 30mA RCD protection.

New consumer unit with spare ways for EV and extension — future-proof distribution London electricalworks

Future-Proofing

When upgrading, ensure your new board has 'spare ways' (empty slots). This makes it much easier and cheaper to add new circuits later for an EV charger, garden office, or extension.

Part P and NICEIC electrical certification branding — notifiable consumer unit replacement London

Always Use a Certified Pro

Replacing a consumer unit is 'notifiable work' under Part P of the Building Regulations. It MUST be done by a registered electrician (like NICEIC) who can certify the work.

Frequently Asked Questions

Why should I replace my old fuse board?

Old fuse boards (or consumer units) lack modern safety features like RCDs or RCBOs, which protect against electric shock. Upgrading to an 18th Edition unit is critical for safety, regulatory compliance (especially for landlords), and to support modern electrical demands like EV chargers or new kitchens.

What is an 18th Edition consumer unit?

This is the latest standard (BS 7671) for electrical installations. It mandates features like surge protection (in many cases) and comprehensive RCD/RCBO protection for all circuits, offering a much higher level of safety against fire and electric shock than older units.

How long does a fuse board replacement take?

A standard domestic consumer unit replacement typically takes between 3 to 6 hours. During this time, the power to your property will be off. We test every circuit thoroughly before, during, and after the installation.

What's the difference between an RCD, MCB, and RCBO?

An MCB (Miniature Circuit Breaker) protects against overcurrent (overload or short circuit). An RCD (Residual Current Device) protects against electric shock (earth leakage). An RCBO (Residual Current Breaker with Overcurrent) combines both functions into one unit, providing the highest level of individual circuit protection.

Book Your Fuse Board Replacement Survey in London

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NICEIC approved electrician on site — certified electrical installation and handover London electricalworks

The True Cost of Quality

Safety is an investment, not an expense. We refuse to cut corners because we refuse to compromise your safety.

Our pricing reflects a premium standard designed to protect your property for decades:

  • Safety First: Strict adherence to BS 7671 using only fire-rated materials from tier-one brands like Hager & Schneider.
  • Fixed Pricing: Our "Platinum Promise" means the price we quote is the price you pay. No hidden fees.
  • Expertise: Executed exclusively by JIB Gold Card certified electricians, not unqualified labourers.
  • 6-Year Guarantee: We install robust systems backed by NICEIC protection, increasing your property's long-term value.

"We don't aim to be the cheapest. We aim to be the safest and most reliable choice for your home."

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electricalworks process step — NICEIC electrical installation phase London