uk Home & property emergencies

What to do if…
an outlet or switch sparks, feels hot, is discoloured, or smells of burning

Produced and maintained by PanicStation.org Published: 20 July 2026 Last reviewed: 12 August 2026 Editorial policy UK guide

Short answer

Stop using the socket or switch immediately. If there is fire, smoke, continuing sparking, or a strong or worsening burning smell, get everyone out, stay outside, and call 999.

Do not do these things

Do not touch the socket, switch, plug, or nearby wiring if it is hot, smoking, sparking, melted, damaged, or wet.
Do not use water on an electrical fire.
Do not stay inside to investigate if there is fire or smoke.
Do not repeatedly reset a circuit breaker or replace a fuse to test whether the fault returns.
Do not remove the socket or switch cover or attempt a repair.
Do not use the affected fitting again because the sparks or smell have stopped.
Do not test an attached appliance in another socket until the cause has been checked.

What to do now

Move people and pets away from the affected socket or switch.
If there is fire, smoke, continuing sparking, or a strong or worsening burning smell, leave immediately. Close doors behind you where possible, stay outside, and call 999.
If there is no fire or smoke, switch off the electricity at the consumer unit only if you can reach it without approaching the affected area, touching damaged equipment, or standing in water. Switch off the affected circuit if it is clearly identified; otherwise use the main switch.
Leave the affected circuit off. Do not restore power until the fitting and surrounding wiring have been checked.
Unplug an attached appliance only after the power is off and only if the plug and socket are cool, dry, undamaged, and safe to approach. Otherwise leave it in place.
Arrange a prompt inspection by a registered electrician. Describe the sparks, heat, discolouration, smell, buzzing, crackling, smoke, tripped breaker, or blown fuse you noticed.
If you rent, report the electrical fault to your landlord or managing agent straight away and state that the fitting must not be used.
If someone is still in contact with electricity, do not touch them. Switch off the supply if it is safe to do so and call 999. Call 999 as well if anyone is unconscious, not breathing normally, badly burned, seriously injured, or otherwise in immediate danger.

What can wait

You do not need to identify the exact fault, choose a replacement fitting, decide who will pay, or inspect the rest of the property now. Keep the affected circuit off and focus on immediate safety and arranging a professional inspection.

Important reassurance

Heat, scorch marks, sparks, crackling, and burning smells are recognised warning signs that should not be ignored. Stopping use and isolating the supply where it is safe to do so reduces the chance of disturbing the fault further while you arrange help.

Scope note

This guide covers immediate first steps only. Testing, repair, responsibility for costs, and any wider inspection may require an electrician, landlord, insurer, or other specialist later.

Important note

This is general safety information, not electrical, legal, medical, or other professional advice. Do not take any action that requires you to approach live, hot, smoking, damaged, or wet electrical equipment.

Additional Resources

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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