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Consumer units · RCBO protection

Consumer unit & fuse board upgrades

Replacement of old fuse boxes and consumer units with modern metal-clad units, RCBO or RCD protection and surge protection, tested and certified with Building Regulations notification.

When a consumer unit upgrade is needed

  • Rewireable fuses or no RCD protection for socket and bathroom circuits
  • A plastic consumer unit showing damage, or an installation flagged on an EICR
  • Adding circuits for EV chargers, heat pumps, solar PV or batteries
  • Nuisance tripping on an old split-load RCD board

Our guides on RCD vs RCBO and rewireable fuses vs modern consumer units explain the options.

What is included

Every replacement includes pre-installation testing of the existing circuits, a non-combustible enclosure, RCBO or dual-RCD protection, surge protection where required, full testing, an Electrical Installation Certificate and Building Regulations notification through our competent person scheme.

Coverage

Consumer unit upgrades across London and the South East

Available at every one of the 4,681 towns, villages and postal localities in our area directory.

Consumer unit upgrades in London723 localitiesConsumer unit upgrades in Hertfordshire267 localitiesConsumer unit upgrades in Essex570 localitiesConsumer unit upgrades in Kent612 localitiesConsumer unit upgrades in Surrey255 localitiesConsumer unit upgrades in Berkshire218 localitiesConsumer unit upgrades in Buckinghamshire295 localitiesConsumer unit upgrades in Bedfordshire178 localitiesConsumer unit upgrades in Norfolk738 localitiesConsumer unit upgrades in Suffolk540 localitiesConsumer unit upgrades in Cambridgeshire285 localities
FAQ

Consumer unit upgrades: frequently asked questions

How much does a consumer unit replacement cost?

Most domestic replacements fall roughly between £450 and £1,200 depending on the number of circuits, RCBO versus dual-RCD protection, surge protection and any faults found during testing. We give a fixed price after survey.

Is a fuse box with rewireable fuses illegal?

No. Rewireable fuses are not illegal, but an EICR will usually record a lack of RCD protection as an observation, and replacement is often the most practical fix.

How long does a consumer unit change take?

Typically a day for a standard house, with power off for most of that time.

Book online

Book consumer unit upgrades today

Choose a date online and we confirm by return, usually the same working day.

Start booking →