Will the electrician give me a quote before starting work? +
Yes — a professional electrician will diagnose the fault and provide a clear quote before beginning any repair work. For emergency call-outs, they will explain the call-out fee upfront and then quote for the repair once the fault has been identified. You should receive a Minor Electrical Installation Works Certificate or full Electrical Installation Certificate depending on the scope of the job.
What is the difference between an RCD and an MCB? +
An MCB (Miniature Circuit Breaker) protects against overcurrent and short circuits — it is the modern equivalent of a fuse. An RCD (Residual Current Device) protects against earth leakage, which is what can kill you if you touch a live wire. Modern consumer units use RCBOs, which combine both functions into a single device per circuit, giving you the best protection. If your consumer unit still has rewirable fuses, it is overdue for an upgrade.
How long does a consumer unit replacement take? +
A consumer unit replacement in Dundee usually takes 4 to 8 hours, depending on the number of circuits and the condition of the existing wiring. Your electricity supply will be off for most of this time, so plan accordingly — charge phones, fill flasks, and move any frozen food to a cool bag. The electrician will test every circuit before restoring power.
My RCD keeps tripping — what should I do? +
An RCD that keeps tripping is detecting an earth leakage fault, which could be a sign of damaged wiring or a faulty appliance. Start by unplugging all appliances on the affected circuit, then reset the RCD. Plug each appliance back in one at a time to identify the culprit. If the RCD trips with nothing plugged in, the fault is in the fixed wiring and you need an electrician in Dundee to trace and repair it.
Can I do any electrical work myself? +
You can legally carry out minor electrical work such as replacing light switches, sockets (like-for-like), and light fittings without notifying building control. However, you must not add new circuits, work in bathrooms or kitchens (within zones), replace a consumer unit, or install outdoor wiring unless you are Part P registered. DIY electrical work is a leading cause of house fires — if you are unsure, always call a qualified electrician in Dundee.
What is Part P and why does it matter? +
Part P of the Building Regulations covers electrical safety in dwellings. Certain types of electrical work — including new circuits, consumer unit replacements, and work in bathrooms or kitchens — are classed as notifiable and must either be carried out by a Part P registered electrician or inspected by building control. Using a registered electrician saves you the building control fee (typically £200–£300) and ensures the work is properly certified.