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Consumer Unit Upgrades in Shrewsbury

Modern Consumer Unit Replacements & Upgrades

Older fuseboards may no longer provide the level of protection expected in a modern electrical installation.

KJ Electrical Services provides consumer unit replacements and upgrades for homes and businesses across Shrewsbury and Shropshire, including modern RCBO protection, surge protection, full testing, certification and clear circuit labelling.

Whether you are renovating, adding new circuits, installing EV charging or renewable energy equipment, or simply want reassurance about an ageing installation, we can assess the existing system and recommend the most appropriate solution.

Consumer unit installation in progress by KJ Electrical Services
FuseBox consumer unit with surge protection and EV circuit
Electrical inspection inside an existing consumer unit
Modern FuseBox consumer unit with RCBO protection and surge protection
Completed modern consumer unit installation by KJ Electrical Services

When Might a Consumer Unit Need Replacing?

An older consumer unit does not automatically need to be replaced simply because of its age. The important question is whether the installation provides suitable protection and remains safe for continued use.

A replacement may be recommended where:

  • The existing fuseboard has rewireable fuses or outdated protective devices
  • There is limited or no RCD protection
  • The enclosure or internal components show signs of damage or deterioration
  • Additional circuits are being installed and the existing board is unsuitable
  • An EV charger, solar PV system or battery storage system is being added
  • Testing identifies defects or shortcomings within the existing arrangement
  • The installation has been heavily altered over time and requires a more suitable modern arrangement

What Is Included in a Consumer Unit Upgrade?

A consumer unit replacement involves more than simply swapping one box for another. The existing installation must be assessed, circuits tested and the new equipment selected to suit the property and the way the electrical system is used.

Modern Circuit Protection

Individual RCBO protection can provide improved fault protection and reduce the likelihood of one fault affecting several unrelated circuits.

Surge Protection

Surge protective devices help protect electrical and electronic equipment from transient overvoltages within the installation.

Testing & Certification

Circuits are tested before and after installation, with the appropriate electrical certification provided on completion.

The finished installation is clearly labelled so circuits and protective devices can be identified easily in the future.

RCBO Protection & Surge Protection

What is an RCBO?

An RCBO combines overcurrent protection and residual-current protection for an individual circuit. This means a fault on one circuit is less likely to disconnect several other circuits at the same time.

What does surge protection do?

A surge protective device, or SPD, helps limit short-duration voltage surges that could otherwise damage sensitive electrical and electronic equipment.

Do I Need a New Consumer Unit for an EV Charger or Solar?

Not always. An existing consumer unit may be perfectly suitable, depending on its condition, available capacity, protective devices and the requirements of the new equipment.

Before adding an EV charger, solar PV system, battery storage system or other significant new load, we assess the existing installation and determine whether the current consumer unit can accommodate the work safely.

If an upgrade is needed, it can often be planned as part of the overall installation rather than treated as a separate job.

What Happens During the Installation?

Before the existing board is removed, the installation is assessed and tested so any existing defects can be identified.

The electrical supply is then safely isolated while the new consumer unit is installed and circuits are transferred to the new protective devices.

Once the installation is complete, each circuit is tested, protective devices are checked and the consumer unit is labelled clearly.

We aim to keep disruption to a minimum and leave the working area clean and tidy on completion.

Testing, Certification & Labelling

Consumer unit replacement is not complete until the electrical installation has been properly tested.

Testing helps confirm that protective measures operate correctly and that the circuits connected to the new board are suitable for continued service.

On completion, the relevant electrical certification is provided and the consumer unit is clearly labelled for future identification and maintenance.

Why Choose KJ Electrical Services?

NAPIT Approved Contractor

Electrical work, testing and certification carried out professionally and in accordance with current industry requirements.

Over 10 Years’ Experience

Experienced across domestic and commercial electrical installations, upgrades, testing and fault finding.

Local & Reliable

Based in Shrewsbury and providing electrical services throughout Shrewsbury and the surrounding areas of Shropshire.

Professional Fuseboard Upgrades for Homes & Businesses

KJ Electrical Services provides consumer unit replacements and fuseboard upgrades throughout Shrewsbury and Shropshire.

We can assess your existing installation, explain whether an upgrade is actually necessary and recommend the most appropriate arrangement for your property.

We also carry out related work including EICRs and electrical testing, fault finding, EV charger installation, solar PV and battery storage wiring, and general electrical installation work.

Frequently Asked Questions

Does an old fuseboard automatically need replacing?

No. Age alone does not mean a consumer unit is unsafe. Its condition, protective devices and the wider electrical installation all need to be considered.

How long does a consumer unit replacement take?

The time required depends on the number of circuits and the condition of the existing installation. A typical domestic replacement is usually completed within the working day, although additional remedial work can extend this.

Will the power need to be turned off?

Yes. The electrical supply needs to be safely isolated while the existing consumer unit is removed and the replacement is installed.

Will the circuits be tested?

Yes. Testing forms an important part of the work and helps identify any existing circuit issues before the new consumer unit is put into service.

Do modern consumer units need surge protection?

Surge protection is now commonly included in modern consumer unit installations where required or appropriate for the installation.

Can you upgrade the consumer unit before fitting an EV charger?

Yes. If the existing board is unsuitable for the proposed EV charger, the consumer unit upgrade can be planned alongside the charger installation.

Need Advice About Your Consumer Unit?

If you are unsure whether your existing fuseboard needs replacing, KJ Electrical Services can assess the installation and explain the options clearly.

We provide consumer unit upgrades and electrical safety improvements throughout Shrewsbury and the surrounding Shropshire area.