Consumer Unit Upgrades in Aberdeen: Why Older Homes Need Them
Key Takeaways
- Older fuse boxes and consumer units without RCD protection do not meet current safety expectations
- Modern consumer units for domestic premises are required to have a non-combustible (metal) enclosure
- A change should be tested and certified, and the rest of the installation should be checked at the same time
- It is also usually a prerequisite for adding an EV charger, a new circuit or a loft conversion
The consumer unit is the heart of a home's electrics. In many older Aberdeen properties, it is also the oldest and least protective part of the system. Upgrading it is among the most common jobs we do.
What is a consumer unit?
The consumer unit, often called the fuse box, houses the switches or fuses that protect each circuit and the main isolator. In a modern one, RCDs or RCBOs also protect people from electric shock and reduce fire risk.
Signs yours is due for an upgrade
Rewireable fuses, a wooden or plastic backplate, no RCD, switches that trip regularly, hot or scorched areas and a unit that is simply decades old are all signs. Check also whether it has labels for every circuit. A consumer unit without them is harder to work on safely.
Why RCD protection matters
An RCD detects small leaks of current and disconnects in a fraction of a second. That can be the difference between a tingle and a fatal shock. Our guides on RCDs and RCBOs explain the different types.
Metal enclosures and current rules
Current wiring regulations expect new domestic consumer units to have a non-combustible enclosure. That reduces the fire risk if a connection fails. The installation should be designed, installed, tested and certified to BS 7671.
What does the job involve?
We isolate the supply, replace the unit, reconnect and label each circuit, then test everything. The power is usually off for part of a day. Along the way we test the existing circuits and report any that are not suitable for reconnection. Our consumer unit cost guide shows what affects the price.
When an upgrade comes first
If you are planning an EV charger, a loft conversion, a new kitchen or a heat pump, the consumer unit may need to be upgraded first. It is worth asking at the planning stage, not once the work has started.
Consumer Unit Upgrades
Modern, RCD-protected consumer units to replace old fuse boards.
Electrician in Bucksburn →Frequently Asked Questions
Do I have to upgrade my consumer unit?
How long does a consumer unit change take?
Do you cover Aberdeen and Aberdeenshire?
Related Guides
Consumer Unit Upgrade Cost Guide: Fuse Box vs Modern Board
Still running an old fuse box? Here's what a modern consumer unit actually costs, what you get for it, and when it's genuinely worth doing.
What Is an RCD and Why Does It Matter?
RCD gets mentioned on every electrical report but rarely explained. Here's what it actually does, how it differs from a fuse, and why it's the single biggest safety upgrade in most older homes.
What Is an RCBO? RCD vs RCBO Explained
RCBO is one of the more confusing acronyms in home electrics — mostly because it's doing the job of two older devices at once. Here's what it means in practice.
What Is Surge Protection, and Do You Actually Need It?
Surge protection gets offered on almost every consumer unit quote now. Here's what it actually protects against, and how to judge whether it's worth it for your home.
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