Consumer unit and fuse board upgrades

Replace an old fuse box with a modern consumer unit that protects every circuit and is ready for solar, batteries and EV charging.

New consumer unit installed by Solsure Electrical

What is a consumer unit?

The consumer unit, often called the fuse board, is where your electricity supply is split into circuits. Modern units use RCDs and RCBOs that cut the power in milliseconds if there is an earth fault, giving far better protection against shock and fire than old fuses.

RCBO protectionEach circuit protected on its own, so one fault does not cut everything.
Surge protectionProtects electronics from voltage spikes.
Renewable-readySpace and protection for solar, battery, heat pumps and EV circuits.

When to upgrade

If any of these sound familiar, we can help.

  • Old fuse box with rewireable fuses
  • No RCD protection
  • Signs of thermal damage or safety concerns
  • EICR recommended an upgrade
  • Extra capacity for future works

What is included

Every job is carried out to BS 7671 and certified by a NAPIT-registered electrician.

  • Pre-installation test of existing circuits
  • Non-combustible metal consumer unit
  • RCBO protection for individual circuits
  • Surge protection device (SPD)
  • Clear circuit labelling
  • Installation Certificate and Part P notification
Consumer unit wiring during installation

Tested before we start

Modern protective devices are more sensitive than old fuses, so hidden faults can show up after an upgrade. We test your existing circuits first, so you know about any issues before the day.

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Consumer unit and fuse board upgrades: your questions

Straight answers to the things people ask us most. Anything else, just call.

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How long does a consumer unit upgrade take?

Usually one day, with the power off for part of it.

Why might a consumer unit change find other faults?

Modern protective devices are more sensitive. Existing faults that old fuses ignored can show up, and we test circuits first so there are no surprises.

Do I need a new consumer unit for solar or an EV charger?

Not always, but many older units do not have the space or protection required. We check at survey.

Need help with consumer unit and fuse board upgrades?

Free, no-obligation quotes from people who will do the work.

Solsure electrician beside a newly installed battery and inverter