Consumer Unit Upgrade Cost
Consumer unit replacement typically ranges from £350 for a small home to £800 for a larger home; a populated ten-way RCBO unit averages about £485 installed.
£350–£800
Typical UK range
Aug 2026
Last updated
What each option costs
| Type | Typical cost | Notes |
|---|---|---|
| Smaller home, about 6 circuitsTypical starting cost | £350 | Typical starting cost |
| 10-way RCBO consumer unitTypical supply-and-install benchmark | £485 | Typical supply-and-install benchmark |
| Semi-detached homeTypical property-size benchmark | £550 | Typical property-size benchmark |
| Larger home, 12 or more circuitsTypical upper benchmark | £800 | Typical upper benchmark |
What would yours cost?
Those are the usual ranges. Tell us what you need done and we'll tell you the price for your home.
on your first booking
What affects the price
- Circuit count and protective-device type
- Existing wiring defects
- Board relocation or incoming-equipment work
- Property size, access, and region
What's included
- Removal of the old board and installation of a suitable consumer unit
- Testing, commissioning, certification, and applicable notification
Good to know
Before you book, read how to check an electrician is qualified.
How to pay less
- Compare the same circuit count and specification
- Confirm testing, certification, notification, and removal
- Resolve known wiring defects before final quotes
Questions people ask
What needs doing?
Tell us what you need done. We'll tell you the price, then find a local electrician to do the job.