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. Electricians who do consumer unit replacements
£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?
Use these published figures as a guide. Tell us what needs doing to start a quote.
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.