In shortOlder fuse boards often lack RCD protection, which cuts the power in a fraction of a second if something goes wrong. A new consumer unit brings your installation up to current standards and makes room for new circuits like an EV charger. We test the existing wiring first, so there are no surprises on the day.
What's included
- Testing the existing circuits before the swap
- Fitting a new consumer unit with RCD or RCBO protection
- Clear labelling of every circuit
- Full testing once the new board is in
- An Electrical Installation Certificate for the work
When you might need it
- You still have rewireable fuses with fuse wire
- Your board has a wooden back, cracked casing or scorch marks
- Breakers trip often, or you're adding an EV charger or extension
Examples of our work
Installing new power cables, lighting, sockets, smoke and heat alarms and installing a very impressive new consumer unit, replacing a chaos of old and confusing fittings. I can now be confident that the whole house is professionally and safely wired.Claire W. · Rewire and new consumer unit · ★★★★★ Google review
How it works
- Tell us about the job. Call, WhatsApp or send the form below. Photos help.
- Free estimate. We talk it through, visit if needed and give you a clear, no-obligation estimate.
- Neat, careful work. We arrive in uniform with photo ID and keep the work area tidy.
- Tested and handed over. Everything is tested and explained, with a full invoice and the right certificate.
Planning ahead? Read our guide: Do I need a new consumer unit? Signs your fuse box needs replacing.
Consumer Unit Upgrades: common questions
Do I need to replace my fuse box?
Not always. It's usually recommended if the board has no RCD protection, is damaged, or can't safely take new circuits. An inspection will tell you whether yours is fine as it is.
How long does a consumer unit change take?
Most domestic swaps take around a day, with the power off for much of that time. We'll agree timings with you in advance so you can plan around it.
Why do some new boards trip after they're fitted?
Modern RCD protection is more sensitive, so it can reveal existing faults such as damp in an outdoor socket or a faulty appliance. That's the new board doing its job. Testing beforehand helps us spot these early.
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Last updated 31 October 2026.