Consumer unit and fuse board replacement
Old fuse boxes replaced with modern metal consumer units with RCD or RCBO protection, fully tested, certified and notified to Building Control.
4.9 from 65 Google reviews
Gas Safe registered
NICEIC Approved Contractor
F-Gas certifiedWhat you get
Metal enclosure
Non-combustible consumer units, as the wiring regulations require for homes.
RCD or RCBO protection
Fast-acting protection against electric shock, with the option of individual protection on every circuit.
Surge protection
Protects your electronics from voltage spikes, as current regulations call for in most homes.
Every circuit tested
We test the existing wiring before and after, so faults are found and dealt with properly.
Clear labelling
Every circuit labelled so you know what each switch controls.
Certificate and notification
An Electrical Installation Certificate, with the work registered with Building Control.
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Consumer unit prices
Price assumes your existing circuits pass testing. Any faults we find are priced and agreed with you before we carry on.
Standard
- Metal consumer unit with RCD protection
- Surge protection device
- Testing of all circuits
- Electrical Installation Certificate
- Building Control notification
RCBO board
- Everything in Standard
- Individual RCBO protection on every circuit
- A fault on one circuit doesn't cut power to the rest
Advanced
- Everything in RCBO board
- Arc fault detection (AFDD) on key circuits
- Recommended for HMOs and high-risk properties
Guide prices for typical jobs. Every job gets a fixed written quote before work starts, so the price you agree is the price you pay. All prices include VAT. Prices are for East London, Essex borders and nearby boroughs. Smaller jobs further out (Chelmsford, Southend, Harlow, Bishop's Stortford, Cambridge) carry a travel charge, shown before you book. Installations are priced the same wherever we travel.
Get your fixed quoteThe electrical brands we install and service
We fit the brand that suits your home and budget, and we'll explain the differences before you decide. All installations are registered for the manufacturer's warranty.
Brand names and logos are the property of their owners.
Do you need a new consumer unit?
You should consider replacing your consumer unit if:
- It still has fuses with wire in them, or it's mounted on a wooden board
- There's no RCD protection, or only some circuits are protected
- The whole house loses power when a single appliance develops a fault
- You're adding an EV charger, electric shower, extension or loft conversion and the board has no spare capacity
- An EICR has recommended an upgrade
RCDs, RCBOs and AFDDs explained
- 1Main switchTurns off the power to every circuit in one go.
- 2Surge protection (SPD)Protects electronics from voltage spikes. The indicator shows it's working.
- 3RCDCuts the power in a fraction of a second if current leaks to earth. Test it with the button.
- 4RCBOsProtect each circuit individually, so one fault doesn't turn off the whole house.
- 5Circuit labelsEvery switch clearly labelled, so you know what it controls.
- 6Metal enclosureNon-combustible casing, required for consumer units in homes.
An RCD (residual current device) switches off the power in a fraction of a second if electricity leaks to earth, for example through a person. On a dual-RCD board, the circuits are split between two RCDs, so a fault only cuts power to half the house.
An RCBO combines RCD protection and overload protection for a single circuit. With an RCBO on every circuit, a fault only affects that one circuit, so a faulty kettle won't turn off your fridge or your heating.
An AFDD (arc fault detection device) detects the dangerous sparking caused by damaged cables and loose connections, which is a common cause of electrical fires. The wiring regulations now require AFDDs on certain circuits in higher-risk buildings such as HMOs, and recommend them elsewhere.
What happens on the day
- We safely isolate your incoming supply.
- We test the existing circuits for faults before connecting them to the new board.
- We fit the new consumer unit, connect and label every circuit, and install surge protection.
- We test everything again and switch the power back on.
Most replacements take the best part of a day. Your power will be off for several hours, and we'll tell you roughly when so you can plan around it.
If testing finds a problem
Older installations sometimes have hidden faults, such as damaged cables or shared neutral connections, that an old fuse box tolerated but a modern RCD won't. If we find one, we stop, explain what it is and give you a price to fix it before we continue. That way your new board works properly from day one, without nuisance tripping.
Common questions
Is replacing a consumer unit notifiable?
Yes. In England it's notifiable work under Part P of the Building Regulations. As an NICEIC Approved Contractor, we notify it for you, and you receive a compliance certificate.
Does my plastic consumer unit have to be replaced?
Not automatically. A plastic board in good condition that met the rules when it was fitted isn't necessarily unsafe, but an EICR may recommend upgrading it. If you're having other work done, it's often a good time to change it.
Will my fridge and freezer be OK while the power is off?
Yes, as long as you keep the doors closed. They'll stay cold for the few hours the power is off.
Can you add circuits for an EV charger or shower at the same time?
Yes, and it's usually the most cost-effective time to do it.
Helpful reading
Areas we cover
Based in East London, we cover all of London, Essex, East Hertfordshire and Cambridge.
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One written price before any work starts. If anything changes on site, we agree it with you first.
Job done, paperwork sorted
A qualified engineer completes the work and emails you any certificate the job needs.