NAPIT Registered · Part P Certified · Consumer Unit Upgrades & Replacements · 12 Month Guarantee
An outdated fuse board without RCD protection puts your property, your family, and your home insurance at risk. Our NAPIT registered electricians provide fully certified fuse board upgrades and consumer unit replacements across Chelsea and South West London — completed to BS7671 18th Edition standards, fully certified under Part P, and backed by our 12 month minimum quality guarantee.
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A fuse board upgrade and a consumer unit replacement are the same thing — two different names for one of the most important electrical safety improvements you can make to your Chelsea home. Your consumer unit is the central hub of your entire electrical installation — it controls every circuit in your property, provides protection against electrical faults, and is the first line of defence against electrical fires and electric shocks.
Most homes built or last rewired before 2000 have a consumer unit that no longer meets current BS7671 18th Edition standards. Older fuse boards with ceramic fuses provide no RCD protection — meaning a single electrical fault can cause a fire or a fatal electric shock before any protection trips. A modern consumer unit fitted by Chelsea Electrical replaces your outdated board with a fully compliant metal clad unit providing RCD or RCBO protection across every circuit in your home.
Every fuse board upgrade and consumer unit installation we carry out is completed to BS7671 18th Edition wiring regulations, fully certified under Part P of the Building Regulations, and backed by our 12 month minimum quality guarantee. As a NAPIT registered electrical business, all work is independently verified and formally notified to building control — giving you the legal documentation you need for your home insurance, your mortgage lender, and any future property sale.
If you have been advised following an EICR inspection that your consumer unit requires upgrading, or if your fuse board is showing any of the signs below, call us today on 02034 886942 for a free fixed price quote.
Many homeowners do not realise their fuse board is outdated until something goes wrong — but there are clear warning signs that your consumer unit needs upgrading before a fault occurs. If any of the following apply to your Chelsea property, call us today on 02034 886942 for a free honest assessment.
If your fuse board is tripping repeatedly and you have an EV charger installed, the fault may lie with the charger rather than the consumer unit — find out more about our EV charger repair service in Chelsea before booking a consumer unit upgrade.
If your fuse board is making buzzing, humming, or crackling sounds right now this may require an immediate emergency callout — contact our emergency electrician team in Chelsea immediately.
If you are unsure whether your consumer unit meets current standards, our NAPIT registered electricians can carry out a full assessment of your existing installation and advise you honestly on whether an upgrade is required — and if so, exactly what specification is right for your property and your budget.
A failed EICR is the most common trigger for a fuse board upgrade in Chelsea — if you need an electrical safety inspection before deciding whether to upgrade, find out more about our EICR service in Chelsea.
One of the most common questions we are asked by Chelsea homeowners is whether their fuse board can be repaired rather than replaced. It is a fair question — and the honest answer depends entirely on the age, condition, and specification of your existing consumer unit.
In some cases a targeted repair is all that is required — replacing a faulty MCB, resolving a loose connection, or replacing a deteriorating RCD within an otherwise serviceable consumer unit. If your board is relatively modern, meets current BS7671 18th Edition standards, and has full RCD or RCBO protection, a repair may be the most appropriate and cost-effective solution. Our NAPIT registered electricians will always give you an honest assessment — we will never recommend a full upgrade when a repair will do the job safely and correctly.
In many cases however a repair is not sufficient — and attempting to repair an outdated consumer unit that fundamentally does not meet current safety standards is neither safe nor cost-effective in the long term. A full fuse board upgrade is required when:
During a fuse board assessment our electrician may discover that the existing wiring is in poor condition, uses outdated rubber insulated cables, or has deteriorated to the point where a consumer unit upgrade alone is not sufficient to bring the installation up to current BS7671 18th Edition standards — and a partial or full house rewire is also required. If you are planning an extension, our electricians assess your consumer unit capacity as part of every free pre-build survey — find out more about our new wiring for extensions service in Chelsea.
In every case Chelsea Electrical will carry out a full assessment of your existing installation before recommending either a repair or a full upgrade — giving you complete confidence that you are only spending what your property genuinely needs.
A fuse board upgrade carried out by Chelsea Electrical is a comprehensive, fully certified installation — not just a like-for-like swap of one box for another. Here is exactly what is included in every consumer unit upgrade we carry out:
Before any work begins, our NAPIT registered electrician will carry out a full assessment of your existing installation — checking your current consumer unit, the condition of your existing wiring, your earthing and bonding, and the number and type of circuits your property requires. You receive a clear, fixed price quote before we start. Nothing begins until you are completely happy with the scope and the price.
On the day of installation, our electrician will safely isolate your electricity supply before removing your existing consumer unit. We work methodically and efficiently — in most cases your property will be without power for the minimum time necessary to complete the installation safely.
Your new fully compliant, metal clad consumer unit is installed and connected — with RCD or RCBO protection configured across every circuit in your property. We position the new unit correctly, ensure all connections are secure and correct, and label every circuit clearly so you know exactly what each breaker controls.
Once the new consumer unit is installed, every circuit in your property is tested comprehensively to BS7671 18th Edition standards — including continuity testing, insulation resistance testing, polarity checks, and earth fault loop impedance testing on every circuit. No circuit is left untested.
Every fuse board upgrade and consumer unit installation carried out by Chelsea Electrical is formally certified and notified under Part P of the Building Regulations. You receive your Electrical Installation Certificate on the day of completion — the legally valid documentation you need for your home insurance, your mortgage lender, and any future property sale.
Every consumer unit installation we carry out is backed by our 12 month minimum quality guarantee from the date of completion. If anything fails to meet the standard we promised within that period, we return and put it right at no additional cost — no arguments, no call-out charges, no excuses.
One of the most common concerns homeowners have before booking a fuse board upgrade is how long they will be without power — and how disruptive the installation will be. The honest answer is that a standard fuse board upgrade in Chelsea is one of the least disruptive electrical projects you can have carried out.
A standard consumer unit replacement on a typical 3 or 4 bedroom Chelsea property takes between 4 and 8 hours from start to finish — including full circuit testing and certification. In most cases the entire installation is completed in a single day. Your property will be without power only during the safe isolation period — typically 2 to 4 hours — while the new unit is installed and connections are made.
An RCBO consumer unit installation takes slightly longer than a standard dual RCD upgrade — typically 6 to 8 hours — due to the additional wiring required to provide individual circuit protection throughout the property. The result however is significantly better protection and is the specification we recommend for most Chelsea homes.
For larger properties with more circuits, or where additional circuits are being added alongside the consumer unit upgrade, the installation may take longer than a single day. Our electrician will confirm the expected duration at the survey stage so you can plan accordingly.
No — in the vast majority of cases you can remain in your home throughout the installation. Our electricians work efficiently and cause minimal disruption. We will let you know in advance when the power will be off so you can plan around it — and in most cases power is restored well within the same working day.
A fuse board upgrade in Chelsea typically costs between £600 and £1,450 depending on the specification of the consumer unit, the size of your property, and whether any remedial work is required to bring your existing installation up to current standards. Every quote from Chelsea Electrical is free, fixed, and fully itemised — with no hidden charges and no variations without your prior agreement.
Dual RCD Consumer Unit — from £650
The standard fuse board replacement for most 3 bedroom Chelsea properties. A dual RCD board provides RCD protection across all circuits — significantly safer than an older fuse board with ceramic fuses and no RCD protection whatsoever.
RCBO Consumer Unit Installation — from £900
Our recommended consumer unit upgrade for most Chelsea properties. An RCBO board provides individual circuit protection — meaning a single fault on one circuit will not cut power to your entire home. This is the specification we recommend for the majority of residential fuse board upgrades across Chelsea and South West London.
High Specification Board with Surge Protection — from £1,150
The premium fuseboard installation — includes integrated surge protection alongside full RCBO protection. The highest level of electrical protection available for your property and appliances, increasingly specified on higher value properties across Chelsea, Knightsbridge, Belgravia, and South Kensington.
Most Chelsea homeowners do not realise that their home insurance policy may already be invalid — and the reason is sitting in their hallway or under the stairs right now.
The vast majority of home insurance policies require your electrical installation to meet current safety standards as a condition of cover. An outdated consumer unit without RCD protection — particularly one with ceramic fuses — is considered a known fire risk by insurers. If you make a claim following an electrical fire and your insurer discovers your consumer unit did not meet current standards, your claim can be rejected entirely.
This is not a theoretical risk. It happens. And it happens to homeowners who had no idea their fuse board was the reason their claim was denied.
Here is what you need to know:
A fuse board upgrade from Chelsea Electrical does not just make your home safer — it protects your insurance, satisfies your mortgage lender, and gives you documented proof that your electrical installation meets current UK standards. Every installation comes with a Part P certificate and an Electrical Installation Certificate — the two documents your insurer needs to confirm compliance.
Once your new consumer unit is installed and every circuit has been tested to BS7671 18th Edition standards, two important documents are issued before our electrician leaves your property — and both are handled entirely by Chelsea Electrical on your behalf.
Your Electrical Installation Certificate is issued on the day of completion — confirming that your new consumer unit has been installed correctly, every circuit has been tested, and your installation meets current BS7671 18th Edition standards. This is the document your insurer needs to confirm compliance, your mortgage lender may request when you come to remortgage, and your solicitor will require when you sell your property. Keep it safe — it is one of the most important documents relating to your home.
Every fuse board upgrade and consumer unit installation we carry out is formally notified to building control under Part P of the Building Regulations. As a Part P registered electrical business, Chelsea Electrical handle this entire process on your behalf — you receive your Part P certificate on completion without having to deal with building control yourself. Uncertified consumer unit work is illegal — and without Part P certification your installation has no legal standing with your insurer, your mortgage lender, or a future buyer.
If your fuse board upgrade was triggered by a failed EICR, a new EICR will be carried out once the remedial work is complete — issuing you with a Satisfactory certificate confirming your entire installation now meets current standards. If your upgrade was not triggered by an EICR, we strongly recommend booking one — particularly for older Chelsea properties where the consumer unit may have been the most visible issue but not the only one. Find out more about our EICR service in Chelsea.
A fuse board upgrade is not a job for the cheapest electrician you can find online. Your consumer unit controls every circuit in your home — and a poorly installed or uncertified upgrade puts your family, your property, and your insurance at greater risk than the outdated board it replaced.
Every fuse board upgrade and consumer unit installation carried out by Chelsea Electrical is led by a NAPIT registered, time-served electrician with a minimum of 10 years hands-on experience — overseen by our lead engineer who brings 26 years of residential electrical expertise to every project. We have been upgrading consumer units across Chelsea, Knightsbridge, Belgravia, South Kensington, and the surrounding areas of South West London for years. We know these properties, we know their quirks, and we know exactly what specification is right for each one.
For all planned residential electrical services across Chelsea and South West London visit our electricians in Chelsea homepage.
We are based in Chelsea and carry out fuse board upgrades and consumer unit installations across South West London. Most of our fuseboard installation work is concentrated across SW3 and SW10 — but we regularly travel further afield for consumer unit upgrades across the wider South West London area. If you are unsure whether we cover your area, call us on 02034 886942 and we will confirm immediately.
Chelsea is our home town and where the majority of our fuse board upgrade work is carried out. We cover every area of the town including the King's Road, Cheyne Walk, Sloane Square, and the surrounding streets. Chelsea has a significant proportion of Georgian and Victorian housing stock where outdated consumer units without RCD protection are still common — making fuse board upgrades one of our most requested services across the town.
South Kensington and Brompton have a mix of Victorian and Edwardian townhouses and mansion block conversions — and with it, a significant proportion of outdated consumer units still in use. We carry out regular fuse board upgrades and consumer unit replacements across both areas. No travel supplement applies for these areas.
Knightsbridge & Belgravia
Knightsbridge and Belgravia are among our most active areas for fuseboard installations and consumer unit upgrades — particularly among homeowners in Georgian and Victorian townhouses where original consumer units are now well beyond their recommended service life. We cover both neighbourhoods and surrounding residential roads.
We carry out fuse board upgrades and consumer unit installations across Kensington and Earls Court. This area has a diverse housing stock — from Georgian and Victorian townhouses where full consumer unit modernisation is frequently required, to mansion block conversions and modern developments.
We cover Pimlico and Fulham. Many properties in this area were built during the Georgian, Victorian, and Edwardian periods and still have their original consumer units — making fuse board upgrades one of the most common electrical projects we carry out here.
We cover Chelsea Harbour across the southern part of our service area. No travel supplement applies for properties within this area.
We also cover West Brompton, Battersea, Parsons Green, and all towns and areas within approximately 15 miles of Chelsea. Travel supplements may apply depending on distance — we will always confirm this at the time of quoting and will never add charges without prior agreement.
Not sure if we cover your area? Call us today on 02034 886942 or fill in our quick quote form below — we will confirm immediately.
We are proud of the reputation we have built across Chelsea and South West London over 14 years. Here is what our customers say about their experience with our fuse board upgrade and consumer unit installation service.
You can also read our latest Google Reviews here
After moving into our home in Chelsea, we realised the existing fuse board was extremely outdated. Chelsea Electrical upgraded the entire consumer unit quickly and professionally, with minimal disruption to our day to day life. Everything was tested thoroughly and certified the same day. I highly recommend them.
We booked Chelsea Electrical for a fuse board upgrade in Chelsea after noticing our existing consumer unit was outdated. The process was smooth from start to finish and the workmanship was excellent. Harrison was very knowledgeable and completed the installation to a high standard.
Our old fuse box in Chelsea had become unreliable and was no longer suitable for modern appliances. Jake from Chelsea Electrical installed a new consumer unit neatly and explained every part of the process clearly. They were great, very tidy, professional and genuinely helpful electricians.
Your questions answered honestly — by a NAPIT registered, time-served local electrical business with over 14 years carrying out fuse board upgrades and consumer unit installations across Chelsea and South West London.
The most reliable way to find out is to book a free assessment with a qualified electrician — but there are clear signs your consumer unit may need upgrading. These include ceramic fuses rather than modern circuit breakers, no RCD protection on any circuit, a board that is more than 25 years old, circuits that trip regularly, a recent EICR recommending an upgrade, or your home insurer flagging your consumer unit as non-compliant. If any of these apply to your Chelsea property, call us on 02034 886942 for a free honest assessment.
They are the same thing — two different names for the same job. A fuse board is the older consumer term for what electricians call a consumer unit. Whether you call it a fuse board upgrade, a consumer unit replacement, a fuseboard installation, or a consumer unit modernisation — it all refers to the replacement of your existing electrical distribution board with a modern, fully compliant unit providing RCD or RCBO protection across every circuit in your home.
An RCD — Residual Current Device — is a life-saving safety device that detects electrical faults and cuts power in milliseconds, before a fault can cause a fire or a fatal electric shock. Older fuse boards with ceramic fuses have no RCD protection — meaning a serious electrical fault can go undetected long enough to cause a fire or injury. Every modern consumer unit installed by Chelsea Electrical provides full RCD or RCBO protection across every circuit in your home as standard.
A dual RCD consumer unit divides your circuits into two groups — each protected by a single RCD. If a fault occurs on any circuit in one group, the RCD for that entire group trips — cutting power to multiple circuits simultaneously. An RCBO consumer unit provides individual protection for every single circuit — meaning a fault on one circuit trips only that circuit, leaving the rest of your home unaffected. We recommend RCBO consumer units for most Chelsea properties as the superior and more convenient specification.
A standard fuse board upgrade in Chelsea is typically completed in a single day. A dual RCD consumer unit installation usually takes between 4 and 6 hours. An RCBO consumer unit installation takes between 6 and 8 hours due to the additional wiring required for individual circuit protection. Your property will be without power only during the safe isolation period — typically 2 to 4 hours — and power is restored the same day in every case.
No — in the vast majority of cases you can remain in your home throughout the installation. Our electricians work efficiently and cause minimal disruption. We will let you know in advance when the power will be off so you can plan around it — and in most cases power is restored well within the same working day.
Yes — positively. An outdated consumer unit without RCD protection is considered a known fire risk by most insurers and can invalidate your cover in the event of an electrical fire. A Part P certified fuse board upgrade from a NAPIT registered electrician satisfies every insurer's compliance requirement and gives you documented proof that your installation meets current BS7671 18th Edition standards.
If your fuse board upgrade has been triggered by a failed EICR, a new inspection will be carried out once the upgrade is complete — issuing a Satisfactory certificate confirming your installation now meets current standards. If your upgrade has not been triggered by an EICR, we recommend booking one — particularly for older Chelsea properties where the consumer unit may not be the only element requiring attention. Find out more about our Homeowner EICR service in Chelsea or Landlord EICR service in Chelsea.
A fuse board upgrade is not a legal requirement in owner-occupied properties unless your EICR has identified your consumer unit as non-compliant with a C1 or C2 observation. However since 2016 all new consumer unit installations must use a metal clad enclosure and any consumer unit that does not meet current BS7671 18th Edition standards may invalidate your home insurance and affect your ability to sell your property. For landlords, a non-compliant consumer unit identified during an EICR must be upgraded within 28 days under The Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 — find out more about our landlord EICR service in Chelsea and your legal compliance obligations.
We can typically survey your property and provide a fixed price quote within 24 hours of your enquiry. Subject to availability, most fuse board upgrades in Chelsea can be booked within 2 to 5 working days. For urgent upgrades — particularly where an EICR has identified a C1 or C2 observation on your consumer unit — call us directly on 02034 886942 and we will do our best to prioritise your installation.
Still have a question we have not answered? Call us today and speak directly with one of our experienced Chelsea based electricians — no jargon, no obligation, just straight honest advice about your fuse board upgrade.
Ready to make your home safer, protect your insurance, and get your electrical installation fully certified? Complete the form below and we will get back to you within 1 hour with a free fixed price quote — or call us directly on 02034 886942 to speak to an experienced local electrician today.
Every enquiry is handled personally by our team. No automated responses, no passing your details to third parties — just a straight, honest conversation with a time-served electrician who knows Chelsea homes inside out.
Prefer to talk? Call us now on 02034 886942
★★★★★ Rated on Google by homeowners across Chelsea