Electrical guide

Signs your consumer unit needs replacing

How to tell if your fuseboard is due for an upgrade — and what a modern RCBO consumer unit adds in terms of safety.

In this guide
  • What a consumer unit does and why the standard changed
  • Rewireable fuses vs MCBs vs RCBOs
  • Common warning signs: tripping, buzzing, scorching, no RCD
  • 18th Edition regulations and the case for a full upgrade
  • What an upgrade involves — timings, isolation and certification
  • Typical price ranges and what affects the quote

The full guide is being written by our engineers. In the meantime, if you have a specific question about this topic, our operations team is happy to help — call us or book a visit and we'll advise on the right approach for your property.