Introduction
If your fuse board is old or keeps tripping, you may wonder whether you need a full replacement or just an upgrade. Here’s how to tell — and why it matters for your safety.
What’s the Difference?
An ‘upgrade’ usually means adding protection (such as RCDs or surge protection) to an existing board, while a ‘replacement’ means fitting a brand-new consumer unit. Older boards with rewireable fuses or no RCD protection almost always need full replacement to meet modern standards.
- Modern RCBO protection
- Usually a one-day job
- Certificate included
- Local, friendly, certified electricians
Signs You Need a New Consumer Unit
Old rewireable fuses, no RCD protection, a wooden backboard, scorch marks, or frequent unexplained tripping are all signs your board is unsafe and due for replacement with a modern metal consumer unit.
What a Replacement Involves
We isolate the supply, fit a new metal consumer unit with RCBO protection, test every circuit, label everything clearly and issue your certificate — usually in a single day.
Talk to London Sparky
Got a question or need a quote? London Sparky offers free, no-obligation advice and quotes across Ruislip and Greater London.
