hi everyone,just had a call of the electrician who was due to come and finish the job today to say he has gone away to work for the rest of the week and wont be able to come and finish putting the light switches back on til the weekend we now have no lights in the hall or stairs,i am thinking about putting the switch on myself but looking for some advise first, up stairs switch has a cable with 2 red wires in and a seperate red wire in sleeving already in a switch,downstairs there are 2 sets of red wires and the single wire but there is no switch,the switch that is going there is a 3 way, 1 for outside lights,1 for the hall and 1 for the landing light,there are also 2 pieces of red wire that he said are required to pair up the commons in the switch,any help would be great thanks.