Lights Flickering
Lights flicker, dim, or flash intermittently, sometimes across multiple rooms.
What Is Causing This?
- 1Loose wiring connection at the light fitting or switch
- 2Overloaded circuit
- 3Faulty or incompatible dimmer switch
How Urgent Is This?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
What Needs to Be Done
An electrician will check connections at the affected fittings, the consumer unit, and the supply. They will tighten loose wiring, replace faulty components, or upgrade the circuit if overloaded.
How Much Will It Cost?
National average estimate
Labour: £512 – £1,090 | Materials: £144 – £450
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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.
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Some fixes for this problem may require planning permission or building regulations approval. Check if your project needs permission:
How to Prevent This
Use LED bulbs compatible with your dimmer switches. Avoid daisy-chaining extension leads. Have your electrics inspected every 10 years.
Related Problems
A circuit breaker in the consumer unit keeps tripping, cutting power to part or all of the house.
All lights and sockets in a single room or area have stopped working while the rest of the house has power.
An audible buzzing or humming noise coming from a light switch when the light is on.
Other Electrician Problems
A circuit breaker in the consumer unit keeps tripping, cutting power to part or all of the house.
One or more plug sockets have no power, even though the rest of the room works fine.
A smell of burning plastic or scorching coming from a socket, sometimes with visible discolouration.
An audible buzzing or humming noise coming from a light switch when the light is on.