Consumer unit (fuse board) upgrades in London
Replace an outdated fuse box with a modern consumer unit, with the right circuit protection, clear labelling and testing. Honest advice and a clear quote first.
What this service covers
The consumer unit, often still called the fuse board, is where power enters your property and is shared out between your circuits. An older unit may not have the protection a modern installation expects. We replace outdated units with modern consumer units that include appropriate circuit protection, such as RCDs and RCBOs, and surge protection where it is required.
Every job starts with an assessment of your existing installation, so the quote reflects what your property actually needs. When the new unit is in, we inspect and test the work and provide the certification that goes with it. If something needs attention first, such as earthing or bonding, we explain it and agree any extra cost with you before going ahead.
Signs you may need a new consumer unit
- You still have a fuse box with rewirable fuse carriers
- Circuits trip often, or will not reset
- The casing is cracked, scorched or warm to the touch
- You are adding circuits for a kitchen or extension
- An electrical condition report (EICR) recommended an upgrade
What the job involves
Tell us about the property
What you have now, what is going wrong and what you are planning. Photos of the unit help.
Assessment and quote
We assess the existing installation and give you a clear quote, so you know the plan before we start.
Replace and reconnect
Power is isolated, the old unit comes out, the new one goes in and every circuit is reconnected and labelled.
Inspect, test and certify
The work is inspected and tested, and you receive the certification that goes with it.
What you can expect from us
Modern circuit protection
RCDs and RCBOs, plus surge protection where required.
Clearly labelled circuits
Every circuit labelled so anyone can find the right switch.
Tested and certified
Inspection, testing and certification appropriate to the work.
A quote that fits the property
Assessed first, so there are no surprises on the day.
For homes, landlords and businesses
Homeowners and tenants
A safer, tidier board for your home, and the right base for a new kitchen or extension.
Landlords and agents
Act on an unsatisfactory EICR and keep rental properties up to date.
Businesses and managers
Upgrade the board in a shop, office or unit as your power needs change.
Questions we hear about this service
How do I know if I need a new consumer unit?
Common signs are a fuse box with rewirable fuses, a cracked or scorched casing, no residual current (RCD) protection and circuits that trip often. An EICR will tell you for certain.
What is an RCD?
A residual current device switches a circuit off very quickly if it detects current leaking to earth, for example through a faulty appliance. Modern consumer units include this kind of protection.
How much does a new consumer unit cost?
Prices start from £450 and are typically £450 to £750, depending on the property and the installation. We assess the existing installation first and give you a clear quote before any work begins.
Will the power be off while you work?
Yes, for part of the job while the old unit is swapped. We agree timing with you beforehand so you can plan around it.
Other work we do
Electrical Installation Condition Reports (EICRs)
Electrical condition reports for landlords, buyers, sellers and homeowners.
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Electrical remedial works and safety repairs
Repairs and improvements after an EICR or electrical inspection.
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Electrical fault finding and repairs
Tripping circuits, dead sockets and flickering lights, traced and fixed.
View serviceRequest a free quote for a consumer unit upgrade
- We have already selected “Fuse board upgrades and replacements” for you, so it takes four short steps
- From £450 (indicative). You receive a clear written quote before any work begins
- Typical time: 4 to 8 hours
Prefer WhatsApp? Message us about a consumer unit upgrade, with photos or a short video if you have them.
What type of customer are you?
This helps us point you the right way.
Need an electrician in London? Let’s talk.
Contact us for a free, no-obligation quote. Tell us what you need and we’ll take it from there.