I have an extractor fan isolator switch on the outside wall(hallway) of my bathroom. The fan comes on when the light is turned on. Now I would like to put in a razor socket(for an electric tooth brush) in my bathroom. Does anyone know if I can wire a cable from the isolator switch through the loft down the inside of the wall and connect the other end to the razor socket that I would put into the wall. I know I've written this in a very basic way and the job itself would be more difficult but I'm new to diy so you'll have to fogive me.
Any ideas and tips would be very much appreciated.
Cheers