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 Sunderland.
How long does a consumer unit replacement take? +
A consumer unit replacement in Sunderland 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.
Do I get a certificate after electrical work is completed? +
Yes — for any notifiable electrical work (new circuits, consumer unit replacements, bathroom/kitchen installations), your electrician must issue an Electrical Installation Certificate and notify your local building control. For smaller jobs like replacing a socket or light fitting, you should receive a Minor Electrical Installation Works Certificate. Keep these certificates safe as you will need them when selling your property.
Why do my lights flicker in Sunderland? +
Occasional flickering is usually caused by a loose bulb or a poor connection at the light fitting. Persistent flickering across multiple lights can indicate a loose neutral connection at the consumer unit, a faulty main switch, or an issue with the incoming supply. If all lights in your home flicker simultaneously, this could be a supply-side issue — contact your DNO first. Otherwise, have an electrician in Sunderland check the connections at your consumer unit.
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.