Im hoping I'm just been silly but how do you know when?
My house is 22 years old. Small new build style. The only thing I have noticed is a slight wire burning smell around 2 sockets where an extension lead is plugged in to each socket, one upstairs one downstairs. Nothing is plugged in to them or switched on on the lead apart from the socket in the wall. I have no discoloured walls or sockets. I have no flickering lights or the fuse box doesn't trip. I can only smell it occasionally too. It's really annoying me. Surely 22 years is early for a house to be rewired? Could the extension leads need replacing? They are easily 7 or more years old.
Just wondering how do you know when your house needs rewiring? Or what the smell could be?