Geoffrey Edwards
Hello Getting power to out buildings can be tricky. It would depend on where your consumer unit in your house is in relation to the garage. A steel wire armour cable needs to be run from your consumer unit to the garage. Then a small consumer unit could be installed in the garage to handle lights and sockets. If there is a path (outside or inside) then this quite easy. I would suggest a qualified electrician have a look. Most will do an initial survey for little or no cost. Geoff Edwards GJ Electrical