Fuse Box & Consumer Unit Upgrades in Derby
Replace an ageing fuse box with a modern, fully compliant consumer unit featuring RCBO protection and surge protection, installed by NICEIC Approved Contractors.
Fuse Box / Consumer Unit Upgrades You Can Rely On in Derby
An outdated fuse box is one of the most common safety issues we find in Derby homes. Older boards were never designed for the electrical loads of modern living and offer little protection against electric shock or fire. Upgrading to a current-specification consumer unit brings your installation up to standard in a single visit, with RCBO protection on every circuit and a surge protection device fitted as standard.
“Give a Shit & Do The Right Thing” — our standard for every single customer emergency.
Signs Your Fuse Box Needs Replacing
Older fuse boards were not designed for the electrical loads of a modern home and offer little protection against electric shock. If you recognise any of these warning signs, a replacement consumer unit is the safest solution.
Rewireable Fuses or Old Breakers
If your board still uses rewireable fuse wire or ageing ceramic fuses, it offers little protection against modern electrical loads and faults.
No RCD Protection
A fuse box without residual current device (RCD) protection cannot disconnect the supply fast enough to prevent a fatal electric shock.
Tripping or Overloaded Circuits
Frequent nuisance tripping, overloaded ways, or a board that is full with no room for additional circuits is a clear sign an upgrade is overdue.
Damaged, Warm or Discoloured Board
Heat damage, scorch marks, or a plastic casing that is brittle and cracked indicates the unit is no longer safe to remain in service.
What a Modern Consumer Unit Includes
Today's consumer units do far more than the old fuse box. Every board we install is specified to the current wiring regulations, with protection that guards your family, your appliances, and your property.
Every replacement is fully tested, certified, and notified to building control as Part P compliant.
RCBOs on Every Circuit
Each circuit has its own combined breaker and RCD, so a fault on one circuit isolates only that circuit rather than cutting power to the whole property.
Surge Protection Device (SPD)
An SPD guards your appliances and electronics against voltage spikes caused by lightning or grid switching, extending the life of sensitive equipment.
Main Switch & Dual RCD Backup
A clearly labelled main switch and backup RCD arrangement give you safe isolation and an additional layer of protection.
AFDD Options for High-Risk Circuits
Arc fault detection devices can be fitted to circuits supplying sleeping accommodation or higher-risk areas to detect dangerous electrical arcing.
What to Expect When You Call Definitive Electrical
A structured, transparent emergency response process designed to restore safety and power fast.
1. Survey & Specification
Call our office team on 01332 215002 or request a call back. We assess your existing board, circuit count, and load requirements before recommending the right replacement unit.
2. Planned Power Down
We arrange a convenient time and explain exactly how long your power will be off. Most consumer unit replacements are completed in a single visit.
3. Safe Installation
Our qualified engineer isolates the supply, removes the old unit, and installs your new board with RCBOs, an SPD, and tidy, labelled circuit connections.
4. Testing & Certification
Every circuit is fully tested, the installation is notified to building control, and you receive your electrical installation certificate and Part P notification.
Other Electrical Services We Provide in Derby
Emergency Electrician
Rapid response 24/7 emergency electrician in Derby and surrounding areas for power outages, tripping fuses, sparking sockets, and critical electrical faults.
EICR Electrical Testing
Thorough Electrical Installation Condition Reports (EICR) for landlords, homeowners, and businesses across Derby, carried out by NICEIC Approved Contractors.
Home Rewires
Complete and partial house rewires in Derby, replacing ageing wiring with safe, certified installations carried out by NICEIC Approved Contractors.
Solar Panel Installation
Premium solar PV installations in Derby using AIKO, Longi, and Sigenergy panels, designed and fitted by NICEIC Approved electricians for lower energy bills and greater energy independence.
Solar Battery Storage Installation
Solar battery storage installations in Derby using Sigenergy, Sunsynk, and AIKO systems, sized and fitted by NICEIC Approved electricians to store surplus solar generation and cut reliance on the grid.
EV Charger Installation
Electric vehicle charger installations in Derby using Hypervolt and BG Sync EV units, safely integrated with your consumer unit and solar system by NICEIC Approved electricians.
Lighting Upgrades
Modern LED and architectural lighting upgrades in Derby, designed and fitted by NICEIC Approved electricians using Collingwood, Scolmore, MK and Schneider fittings for better light, lower running costs and a smarter finish.
Fault Finding
Professional electrical fault finding in Derby, diagnosing the root cause of tripping circuits, dead sockets, flickering lights and nuisance faults using calibrated test equipment by NICEIC Approved electricians.
External Lighting
Weatherproof external lighting installation in Derby for driveways, paths, gardens and security, designed and fitted by NICEIC Approved electricians using Collingwood, Scolmore, MK and Schneider outdoor fittings.
Cooker Installation
Safe electric cooker, oven and hob installation in Derby, with a dedicated high-load circuit, cooker switch and certified connection, fitted by NICEIC Approved electricians.
Fuse Box / Consumer Unit Upgrades Frequently Asked Questions
Everything you need to know about fuse box / consumer unit upgrades and what to expect when you choose Definitive Electrical.
Book Your Fuse Box / Consumer Unit Upgrades in Derby
Speak with our dedicated office team to arrange your upgrade and receive clear, professional certification from start to finish.