

Consumer Unit Replacement
Carruthers Electrical provides professional consumer unit upgrades across Lisburn, Belfast and surrounding areas. Our standard installation includes a metal consumer unit, individual RCBO protection, surge protection, full electrical testing and certification.
No cheap split-load boards — RCBO protection and surge protection are our minimum standard.
Qualified & Insured
Testing & Inspection Specialists
Clear Professional Reports
Serving Lisburn & Belfast
What’s Included?
Metal Consumer Unit
High-quality metal enclosure for improved safety and durability
RCBO Protection
Individual protection for each circuit, reducing disruption if a fault occurs.
Surge Protection
Built-in surge protection to help protect appliances and electronic equipment.
Full Electrical Testing
Full testing carried out as part of the installation to confirm safe operation.
Electrical Certificate
You’ll receive the correct electrical certificate for your records.
Clear Advice
Straightforward advice if any faults or additional issues are found.
Not All Consumer Unit Quotes Are Equal
Make sure you are comparing like-for-like. A cheaper quote may not include the same level of protection, testing or certification.
Carruthers Standard
Metal consumer unit
Individual RCBO protection
Surge protection included
Full electrical testing
Electrical certificate supplied
Clear advice if faults are found
Cheap Basic Quote
May use a cheaper split-load board
May not include surge protection
Less individual circuit protection
Testing may be limited or unclear
Certification may not be included
Possible extras after the job starts
Carruthers Standard
Simple, Transparent Pricing
Clear pricing for standard consumer unit upgrades, with options for EICR bundles and premium protection.
Standard RCBO Upgrade
From £550 + VAT
for straightforward consumer unit replacements up to 6 circuits.
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Metal consumer unit
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Individual RCBO protection
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Surge protection included
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Full testing and certification
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Additional circuits from £35 + VAT each
Consumer Unit + EICR Bundle
Reduced combined price.
Save money when booking a consumer unit upgrade and EICR together.
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Consumer unit replacement
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Full EICR report
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Reduced combined price
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Ideal for landlords and homebuyers
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Clear remedial advice if required
Best Value
Premium AFDD Upgrade
AFDD protection available from £100 + VAT per circuit.
For customers who want a higher specification installation.
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AFDD protection available
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Additional arc fault protection
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Suitable for higher-spec properties
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Good option for landlords and homeowners
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Quoted based on board size and requirements

Get A Fast Quote By WhatsApp
Get A Fast Quote By WhatsApp
Send us two clear photos of your current fuse box or consumer unit and we’ll aim to provide a quote within 1 hour during working hours.
1. Close-up photo of the consumer unit
This lets us see the breakers, RCDs, labels, condition of the board and number of circuits.
2. Wider photo of the surrounding area
This helps us check space, access and any nearby equipment such as solar PV, isolators or additional boards
3. Property address and job details
Please include the full property address, what you need done, and any known issues such as tripping, failed EICR, no RCD protection or burning smells.

Frequently asked questions
Common questions about consumer unit replacement, testing and certification.
How long does a consumer unit replacement take?
Most straightforward consumer unit replacements can usually be completed in one day, depending on the size of the installation and whether any faults are found during testing.
Is electrical testing included?
Yes. Full electrical testing is included as part of the consumer unit upgrade. This is required to confirm the installation is safe and working correctly after the new board is fitted.
Will I receive a certificate?
Yes. You will receive the correct electrical certificate for the consumer unit replacement once the work has been completed and tested.
What if faults are found during testing?
If any faults are found, we will explain the issue clearly and advise what is required to put it right. Any additional remedial work will be quoted separately before proceeding.
Do you install RCBO consumer units?
Yes. RCBO protection is our minimum standard. Each circuit gets individual protection, which helps reduce disruption if a fault occurs.
Is surge protection included?
Yes. Surge protection is included as standard with our consumer unit upgrades to help protect appliances and electronic equipment.