A Client in Worcester Park contacted us to carry out a fuse box upgrade after noticing their existing electrical installation was messy, outdated and showing signs of wear and tear. The cupboard under the stairs contained old split-load fuse boxes with loose cables and poor organisation, and the setup had begun causing nuisance tripping. When a fault occurred, most of the house would lose power, which was inconvenient and potentially unsafe.
As an NICEIC Approved Contractor and experienced domestic electrical specialist, we always begin a fuse box upgrade by confirming that the existing circuits are safe to connect to a new consumer unit.
Electrical Installation Condition Report Before the Upgrade
Before replacing the fuse boxes, we first carried out a full Electrical Installation Condition Report (EICR).
This important step allowed us to thoroughly inspect the property’s wiring and identify any electrical faults that could cause problems once the new consumer unit was installed.
During the inspection we identified a small number of issues on the existing circuits. These electrical faults were rectified before any upgrade work began. Carrying out these repairs ensures that the installation is safe and compliant with modern electrical standards.
Completing an electrical installation condition report before a fuse box upgrade is considered best practice and helps ensure the safety and reliability of the entire electrical system.
Removing the Old Split-Load Fuse Boxes
The existing setup consisted of older split-load fuse boxes, which are commonly found in properties built or upgraded several years ago. While they were compliant at the time of installation, these units can cause problems by grouping multiple circuits onto a single RCD.
In practical terms, this means that if a fault occurs on just one circuit, several circuits can trip together, leaving large areas of the property without power. This was exactly what the homeowner had been experiencing.
As a fuse box upgrade specialist, our goal was to modernise the system so that each circuit had better individual protection and improved reliability.
Installing a Modern 18th Edition Consumer Unit
Once all circuits had been checked and any faults rectified, we proceeded with the fuse box upgrade.
We removed the old split-load units and installed a double-stack 18th Edition compliant consumer unit featuring:
- RCBO protection on each circuit
- Surge protection device (SPD)
- A neatly organised and clearly labelled installation
- Improved safety and fault protection throughout the property
Using RCBO protection means each circuit now has its own individual protection device. If a fault develops on one circuit, it will only trip that circuit rather than affecting large parts of the house.
This type of upgrade significantly improves both electrical safety and convenience for the homeowner.
A Huge Improvement to the Under-Stairs Cupboard
One of the most noticeable changes after the upgrade was the transformation of the cupboard under the stairs where the fuse box is located.
The previous installation looked cluttered and untidy, with cables poorly arranged and old equipment taking up unnecessary space. After completing the upgrade, the new consumer unit installation is clean, organised and professionally installed, making the area far safer and much easier to access in the future.
A tidy and well-installed fuse box is not only safer but also makes future maintenance and electrical testing far simpler.
Testing, Certification and Building Control Notification
The work was,
- Fully tested
- Certified
- Registered with local building control through the NICEIC scheme
This means the homeowner received official certification confirming that the fuse box upgrade was completed safely and in compliance with UK electrical regulations.
Local Fuse Box Upgrade Specialist
Precision Electrical Services regularly carries out fuse box upgrades, electrical installation condition reports, and fault finding for homeowners in:
Walton-on-Thames, Hersham, Esher, Weybridge, Addlestone, Chertsey, Byfleet, Thames Ditton, Hinchley Wood, Claygate, Cobham and surrounding Surrey areas.
If you are looking for a local electrician, domestic electrical specialist, or fuse box upgrade specialist, choosing an NICEIC Approved Contractor ensures your electrical work is completed safely and to the highest professional standards.
