Do I Need to Replace My Consumer Unit (Fuse Box)?
The consumer unit, or fuse box, is the control hub of your home's electrical system. It distributes power across your property and protects against overloads, shocks, and faults via breakers, RCDs, and other safety devices.
Consumer unit replacements must be carried out by a NICEIC-registered electrician. It's notifiable work under UK Building Regulations and should be tested, certified, and signed off.
What Is a Consumer Unit?
The consumer unit, or fuse box, is the control hub of your home's electrical system. It distributes power across your property and protects against overloads, shocks, and faults via breakers, RCDs, and other safety devices.
Signs It's Time for a Replacement
- No RCD protection (common in older units)
- Outdated rewireable fuses
- Frequent tripping or buzzing sounds
- Adding high-demand circuits like EV chargers or electric showers
- After an unsatisfactory EICR report
What a Modern Consumer Unit Should Include
- RCBOs on each circuit – isolates faults without shutting off the whole board
- SPD (Surge Protection Device) – protects electronics from voltage spikes
- Type A RCDs – compatible with modern appliances
- Metal-clad enclosure – fire-resistant and regulation compliant
Why You Shouldn't DIY a Fuse Box Replacement
Consumer unit replacements must be carried out by a NICEIC-registered electrician. It's notifiable work under UK Building Regulations and should be tested, certified, and signed off.
Professional Installation – What to Expect
- Initial inspection and quote
- Optional pre-check via EICR
- Old unit removed and circuits disconnected
- New unit installed, tested, and certified
- Work registered with Building Control
Need a Fuse Box Upgrade?
Leicester Spark Ltd offers safe, certified consumer unit replacements with no hidden costs. Serving Leicester and surrounding areas.
Consumer Unit Upgrade LeicesterNeed a consumer unit upgrade in Leicester?
NICEIC Approved. Fixed quotes. Certified and Part P notified.