The five findings that actually put a rewire on the table.
Age alone does not condemn an installation. These five findings do, because none of them can be repaired in place.
- Rubber insulated cable. The insulation dries out, cracks and crumbles to powder. Pre 1960s, and there is no safe repair, only replacement.
- Lead sheathed or fabric covered cable. Same era, same conclusion, and it deteriorates further the moment it is disturbed.
- Lighting circuits with no earth. Two core lighting was normal well into the sixties, and it rules out metal fittings and most modern accessories.
- A rewireable ceramic fuse board. No residual current protection and no modern discrimination, sitting at the origin of everything else.
- Brittle early PVC. Sixties and seventies PVC that has hardened, giving itself away by cracking at the tails or at a light fitting when touched.
Alongside those, recurring nuisance tripping, warm accessories, scorch marks at a fuseway and absent main bonding all push the same way.



