Flickering lights range from harmless to a genuine warning, and the trick is telling them apart. Often it's nothing serious: an LED bulb that doesn't get on with an old dimmer, a bulb not quite screwed home, or a slight dip as a big appliance like a shower or washing machine kicks in. Swapping to a dimmable LED, reseating the bulb or fitting a compatible dimmer usually settles those. If a single fitting flickers, the bulb or the fitting itself is the likeliest culprit.
What isn't harmless is flickering across several rooms at once, lights that dim and surge together, or flickering paired with a warm switch, a burning smell or browning around a fitting. That pattern points at a loose connection somewhere in the wiring, and a loose connection makes heat, so it shouldn't wait. We trace faults like this across Derby with calibrated test equipment rather than guesswork, from the older wiring in the terraces around Normanton to the estates at Chaddesden and Chellaston. We're NAPIT registered and available around the clock, and there's a fixed price agreed before any repair.
One light or many
A single flickering fitting is usually the bulb or fitting; several at once points at the wiring and needs a proper look.
Warning signs to act on
Flickering with a warm switch, a burning smell or browning around a fitting means a loose connection, so don't leave it.
Traced, not guessed
Calibrated test gear finds the actual cause, so you're not paying to swap fittings on a hunch.
Your questions, answered
Why do my LED lights flicker on a dimmer?
Usually the LED and the dimmer aren't compatible. Older dimmers were built for filament bulbs and don't control an LED smoothly. Fitting an LED-rated dimmer or dimmable bulbs normally cures it, and we can supply and fit the right pairing.
Is flickering ever a fire risk?
It can be. Flickering caused by a loose connection generates heat at that point, which is how some electrical fires start. If a switch is warm, you can smell hot plastic or a fitting is browning, stop using the circuit and have it looked at.
The lights flicker when the shower or washing machine comes on. Is that a fault?
A brief dip as a heavy appliance starts can be normal, but a pronounced or repeated flicker can flag an overloaded circuit or a loose connection. We can test it and tell you whether it's nothing to worry about or worth putting right.
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