Fuse Board and Consumer Unit Upgrades for Modern Energy Systems Consumer Unit Upgrades for Modern Homes

A fuse board or consumer unit replacement is needed when the existing unit is outdated, lacks modern RCD or RCBO protection, has no spare ways for new circuits, or has been flagged on an EICR. Typical triggers include rewirable fuses, repeated tripping, landlord compliance failures, or preparation for new circuits such as kitchen, extension or EV-ready wiring. We assess supply capacity, earthing and circuit layout on site, install an 18th Edition metal-clad board with appropriate protection, test every circuit, and issue certification and Building Control notification where required. The next step is a survey for a fixed quotation.

• Old fuse box with rewirable fuses, wooden back or cast-iron switches.
• Lack of 30mA RCD or RCBO protection on circuits.
• Repeated tripping or nuisance loss of multiple circuits from one fault.
• No spare ways for kitchen, extension, garden or EV-ready circuits.
• EICR C1 or C2 observation relating to the consumer unit or main protection.
• Inspection recommendation after rewiring or major renovation work.

• Circuit count - more ways and RCBOs increase material and testing time.
• Existing wiring condition - faults found during testing may need remedial work.
• Board location and access - tight cupboards or external enclosures affect installation time.
• Surge protection and RCBO specification - full RCBO boards and SPDs cost more than basic dual-RCD layouts.
• Main earthing and bonding - upgrades to earthing arrangements add scope where required.
• Testing and certification - Part P notification and EIC issue are included in notifiable replacements.