Electrical faults are one of the leading causes of house fires in the UK. These five warning signs mean you should stop what you are doing and call a qualified electrician now.
Do not ignore these warning signs
Electrical faults are responsible for around 25,000 house fires every year in the UK. Most of them start with early warning signs that were missed or ignored. If you notice any of the following in your home or property, call a qualified electrician as soon as possible.
1. Circuit breakers that keep tripping
A circuit breaker that trips once is doing its job — protecting the circuit from overload. But if the same breaker trips repeatedly, there is an underlying fault: a short circuit, an overloaded circuit, or a faulty appliance drawing too much current. Reset it once. If it trips again, leave it off and call an electrician.
2. Flickering or dimming lights
Occasional flickering when a high-draw appliance switches on is normal. Persistent flickering — especially across multiple rooms — points to loose wiring, a failing connection, or an overloaded circuit. Never assume it is just the bulb.
3. Burning smell, scorch marks, or warm sockets
A burning smell near a socket, switch, or consumer unit is an emergency. Turn off the power to that circuit at the fuse box immediately. Scorch marks or discolouration around a socket mean arcing has already occurred — the wiring inside has been burning. This needs same-day attention.
4. Electric shocks from switches or appliances
A mild tingle when touching a switch or plug is never normal. It indicates current is flowing where it should not be — through the earthing system, through you. This is a serious fault and should be investigated by a qualified electrician before the circuit is used again.
5. Wiring that is more than 25–30 years old
Old wiring does not fail overnight, but it does degrade. If your property has not had an electrical installation condition report (EICR) in the last 5–10 years, or if you have moved into a property built before 2000 and do not know the history of the electrics, a professional inspection is a sensible precaution.
What to do if you spot a fault
Switch off power to the affected area at the consumer unit if it is safe to do so. Do not attempt to investigate or repair electrical faults yourself — even with the power off, capacitors and other components can hold charge. Call a qualified, Part P registered electrician.
Aedis Solutions Ltd
Need help with this in London?
Our multi-trade team covers plumbing, electrical, carpentry, tiling, and general maintenance across London.