Consumer unit replacement in London
Old fuse boxes without RCD protection don't meet modern standards and leave faults unprotected. A modern consumer unit with RCBOs protects every circuit independently — installed, tested and certified in a day.
Request a verified professionalTypical London price: £55–£110 per hour
Sound familiar?
- Old rewireable fuses or no RCD protection
- No spare ways for new circuits (EV charger, extension)
- Nuisance tripping from shared RCDs
- EICR flagged the unit as C2
What your Hero will do
- 1Survey the installation and quote a fixed price
- 2Replace the unit with RCBO protection per circuit
- 3Test every circuit and issue the Electrical Installation Certificate
- 4Notify building control through their competent person scheme
When to call
Before an extension, EV charger or major appliance addition — upgrading the unit first avoids paying twice. Expect the power off for most of the working day.
Common questions
Why RCBOs instead of a cheaper split-load board?
With RCBOs each circuit has its own protection, so a fault in the kitchen doesn't black out the home office. The cost difference has narrowed to the point where most electricians now fit RCBOs by default.