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Advice · 13 October 2026 · 4 min read

Five signs of unsafe electrics

Warm sockets, flickering lights, an ageing fuse board. The everyday signs your home's electrics need a proper look, and what to do about each one.

Illustrative photo of electrical work

Electrical problems rarely announce themselves. Most of the time they build quietly, and by the time something obvious happens the fix is bigger than it needed to be. Here are five signs worth paying attention to. None of them are reasons to panic, but all of them are reasons to get things checked.

1. Your fuse board still has old rewirable fuses

If your board uses wire fuses rather than modern switches that trip, it's likely an older installation with no RCD protection. RCDs are what cut the power fast enough to protect you from a serious shock. A modern consumer unit brings that protection to the whole house, and it's usually a straightforward upgrade. Our fuse box checker tells you in five quick taps whether yours needs a look.

2. Sockets or switches feel warm, or show scorch marks

A socket that's warm to the touch, or any sign of scorching or discolouration, points to a loose connection or a circuit under strain. This is one to stop using and get looked at, rather than wait and see.

3. Lights flicker or dim when appliances kick in

The odd flicker isn't always serious, but lights that dim whenever the kettle or the washing machine starts up can signal an overloaded or ageing circuit. Worth an inspection to find out which.

4. You're always reaching for extension leads

Running the house on extension leads and multi-way adaptors usually means there aren't enough sockets where you need them, and it puts load through circuits that weren't planned for it. Adding proper sockets is safer and a lot less annoying to live with. On older installations, it can also be a sign the whole thing is due a rewire.

5. You don't know the age of the installation, and it's never been inspected

If you've no idea when the wiring was last checked, an EICR is the answer. An Electrical Installation Condition Report is a full inspection of your fixed wiring, ending in a clear picture of what's sound and what needs attention.

For landlords, it isn't optional. Every privately rented home in England needs a valid EICR, renewed at least every five years, carried out by a qualified electrician. For homeowners it's not a legal requirement, but it's the clearest way to know exactly where you stand.

When to call someone

Anything involving burning smells, sparks, or repeated tripping wants a professional sooner rather than later. Electrics aren't a DIY area: the risks are real, and the certification matters. If in doubt, get it looked at.

How we can help

JJS covers homes across Derby and Derbyshire. We're NAPIT registered and TrustMark endorsed, and every quote is free and in writing. If any of the above sounds familiar, get in touch and we'll take a proper look.

Tell us the job. We’ll put a price on it.

Send us the details and the postcode. One of the team gets back to you to book a free visit and give you a written quote.

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