I'm starting to redecorate a small flat soon, and would like to make some changes as to the electrical installations in it (would like to install pipes for some cables, if possible; would like to install potentiometer light switches, maybe motion detect light switches and place a few more electrial sockets) - and for that I need to know where the current electrical installations go through.
So I'm wondering, what is the easiest way to detect where wires/installations from electrical sockets go and what is the right way to go about this? (Really, grateful for any advice you can give, no matter how useful you may think it may be).
I would like to avoid tearing down the walls, more than necessary.