9 signs your house needs rewiring
A huge slice of Blackpool's housing is Victorian and Edwardian terrace, and plenty of it is still running on wiring installed generations ago. These are the nine signs we look for.
1. Rubber or fabric-insulated cable
If the cables at your light fittings or fuse box are covered in black rubber or braided fabric rather than smooth grey or white PVC, the wiring predates the 1960s. Rubber insulation dries out and crumbles, leaving live conductors exposed inside your walls and ceilings. This is the clearest single sign a rewire is due — no debate, no "keep an eye on it".
2. An old fuse box on a wooden backboard
A fuse box with rewireable fuse wire, a cast-iron switch or a varnished wooden backboard belongs in a museum, not under your stairs. It usually means the circuits behind it are of a similar vintage. Modern consumer units aren't just tidier — they disconnect faults in milliseconds rather than relying on a strand of wire melting.
3. Two-pin or cracked sockets
Round-pin sockets date the installation to before the 1950s. Cracked, loose or paint-clogged sockets are more common and nearly as telling — brittle plastic means old accessories, and old accessories usually mean old cable behind them.
4. A mix of wiring colours
Open a switch and find red and black in one box, brown and blue in another? Mixed colours mean the house has been part-rewired over the years, often by different hands to different standards. The new bits may be fine — it's the surviving old circuits that need checking.
5. Fuses blow or trips keep tripping
Old installations were designed for a couple of lights and a wireless, not a kitchen full of appliances plus an electric shower. If the same circuit gives up weekly, it's telling you it can't cope with modern demand.
6. Buzzing or warm fittings
Switches, sockets and fittings should be silent and cool. Buzzing means arcing; warmth means resistance at a loose or corroded connection. Both get worse, not better — and on the coast, salty damp air speeds the corrosion along.
7. Scorch marks or a fishy smell
Brown scorching around a socket, or that odd fish-like smell of overheating plastic, means something has already been running hot. Stop using that socket, switch the circuit off and get it looked at. If anything is actually smoking or you can see exposed live parts, switch off at the main switch and call us on 01253 835566.
8. Lights dim when appliances start
A brief flicker when the kettle kicks in can be normal. Whole rooms dimming every time the shower or oven runs points at undersized or deteriorating conductors that struggle to carry the load.
9. No RCD protection
RCDs cut the power in a fraction of a second when electricity leaks to earth — through a person, for example. If your fuse box has no test button, you have no RCDs, and your installation is several safety generations behind. It doesn't automatically mean a full rewire, but it does mean the installation needs assessing.
Start with an EICR, not a guess
Spotted two or three of these? Don't jump straight to a rewire quote. An EICR inspection tests every circuit and tells you exactly what's dangerous, what's ageing and what's fine — for £120 to £180 depending on the size of the house. Sometimes the answer is a partial rewire or a new consumer unit rather than the full job.
What a rewire costs
If it does come to a rewire, budget from £2,000 for a 1-bed flat up to £8,000 – £10,000 for a 5-bed house. Full breakdown, including what's in the price, on our house rewiring page.