Is a consumer unit the same as a fuse board? Yes.
Consumer unit is the technical name. Fuse board and fuse box are the everyday names. It is the grey or white box everything electrical in your house runs through. If yours has switches, it is a consumer unit. If it has wire fuses, the old fuse box page is written for you.
What a new consumer unit actually gets you
This is not a like-for-like swap. BS 7671 changed what a good board looks like, and the difference is worth understanding before you compare quotes.
When a consumer unit should be replaced
- It is plastic, has no Test button anywhere, or trips the whole house when one thing goes wrong. None of those mean danger today, but an EICR will usually code them.
- Your EICR has come back unsatisfactory with the board coded C2. Replacement is normally the fix the report is pointing at.
- You are about to add a big load like a 10.5kW shower or a 7kW car charger. Most installers will not connect to an old board, so the board comes first.
Most homes land between £449 and £750
The number of circuits sets the base price. Earthing, bonding or meter tail upgrades are the usual extras, and we price them from your photos, not on the day.
See every price →Consumer unit questions
Anything else, call or WhatsApp. A real electrician answers, 8am to 8pm, seven days.
Our WhatsApp is run by SB Electrical Group, the team behind Fuse Box Fitters.
Yes. Consumer unit is the technical name, fuse board and fuse box are the everyday names. If yours has wire fuses it is an old fuse box; if it has switches it is a consumer unit.
An RCBO protects one circuit on its own, so a fault in the kitchen no longer blacks out the whole house. Older split-load boards share one RCD across several circuits, which is why one faulty appliance can trip everything.
BS 7671 now expects surge protection in most homes, and we fit an SPD as standard on our full boards. It protects electronics like boilers, TVs and chargers from voltage spikes.
One visit, usually four to six hours with the power off. We test every circuit before energising and you get the certificate the same day.

