Signs your house needs rewiring
You can’t tell for certain without testing, but these are the most common signs that a home’s wiring is at the end of its life:
- Old cable types — black rubber, fabric-covered or lead-sheathed cables were used before the 1960s and the insulation becomes brittle with age.
- An old fuse box — a board with pull-out rewireable fuses and no RCD protection.
- Round-pin sockets, sockets in skirting boards, or brown and black bakelite switches.
- Warning signs — burning smells, scorch marks, warm sockets, flickering lights or regular tripping.
- Not enough sockets for modern life, with extension leads in every room.
Red and black wires on their own aren’t a problem — those were the standard colours in the UK until 2006, so plenty of sound installations still have them.
How old is too old?
There’s no fixed expiry date, but PVC-insulated wiring installed from the 1960s onwards typically lasts a long time if it hasn’t been damaged or overloaded. Wiring from before then, and any installation that has never been tested, is worth checking. An EICR is the way to find out for sure.
Rewire or just an EICR?
If you’re not sure, start with an Electrical Installation Condition Report. It tells you the condition of the whole installation and whether anything needs fixing. Sometimes the answer is a new consumer unit or a few repairs rather than a full rewire. If a rewire is needed, the report shows why, and you can use our rewire quote builder to plan it.