A
Assessment
Pre-change checks of circuits, earthing and supply arrangements.
Fuse boards & circuit protection
Consumer unit upgrades in London
Modernise an older fuse board, improve circuit protection and organise the installation with appropriate testing and documentation.
Service overview
A consumer unit change is more than swapping the box.
The existing circuits, earthing, bonding, supply arrangement and test results need to be understood before a new consumer unit is selected and installed.
A modern board can provide individual circuit protection and surge protection options, but it cannot correct every defect elsewhere in the installation. Pre-change checks help identify issues that could affect the work.
The quotation explains the intended board arrangement, included protective devices, circuit labelling, testing and any assumptions about existing circuits.
A board change may reveal faults or insulation issues that were previously masked by older protective devices. The approach to unexpected remedials is agreed before work begins.
When should a fuse board be reviewed?
Age alone is not the only factor. Missing protection, damage, poor modifications, limited capacity or unsatisfactory test results may make an upgrade sensible.
An inspection can help distinguish between a board that is simply old and one that creates practical or safety limitations for planned work.
No-obligation enquiry
Ask about this service
Send the basic details. James will review the scope and contact you about availability and the next step.
What the service can include
A properly planned consumer unit upgrade can include:
The final scope is agreed after the existing installation and your requirements are reviewed.
R
RCBOs
Individual protection for circuits where selected in the design.
SPD
Surge protection
Assessment and installation of surge protection where appropriate.
L
Labelling
Clear circuit schedules and identification.
T
Testing
Verification of circuits connected to the new board.
P
Paperwork
Relevant certification and agreed Building Regulations route.
Planning the work
What is checked before work begins.
- Number and type of existing circuits.
- Condition of circuit insulation and accessories.
- Earthing and bonding arrangements.
- Available space and board location.
- Supply isolation and meter-area constraints.
- Notification, certification and remedial contingencies.
Your quotation
What can affect the price?
- Board size and protective-device specification.
- Number of circuits and borrowed-neutral issues.
- Upgrades to earthing or bonding.
- Relocation or enclosure work.
- Faults found during pre-testing.
- Access, parking and isolation arrangements.
A clear written quotation is provided once the scope can be priced reliably. Diagnostic work may be charged separately where the fault cannot be identified in advance.
See domestic price examplesHow it works
A clear route from enquiry to completion.
Share the details
Send the property type, postcode, symptoms or required work, and useful photos.
Assess the scope
The existing installation, access and likely testing requirements are reviewed.
Confirm the basis
A quotation, site survey or diagnostic visit is agreed before work starts.
Complete and check
Work is carried out carefully, then relevant checks and documentation are completed.
You may also need
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Electrical testing
Check the wider condition before planning an upgrade.
View serviceFault finding
Investigate circuits that trip or behave unpredictably.
View serviceConsumer unit guide
Read what to expect before the work.
View service
Helpful answers
Questions about this service
How long does a consumer unit change take?
Many straightforward upgrades can be completed within a day, but circuit defects, access and remedial work can extend the time.
Will my power be off?
Yes. The supply will need to be isolated for part of the work. The expected interruption is discussed in advance.
Does a new consumer unit fix old wiring?
No. It improves the distribution and protective-device arrangement, but defects in the connected circuits may still need separate repair.
What is an RCBO?
An RCBO provides overcurrent and residual-current protection for an individual circuit, helping avoid one fault affecting unrelated circuits.
Is surge protection included?
The specification is discussed and stated in the quotation. Suitability depends on the installation and applicable requirements.
Will I receive certification?
The agreed electrical certification and notification route, where applicable, are included in the scope.
Need help with consumer unit upgrades?
Send the job details and postcode for practical advice and a free quotation.