We had our bathroom renovated about 10 years ago and the original builder had left the shower wire too short and i didnt bother to get it fixed right away as we had another shower in the new loft extension done by the same builder around the same time. A few years go by and i then decided to ask someone to have a look and suprisingly no one had a simple answer i dont know if the electricians in my area are no good or it genuinely is a difficult or risky thing to do. to this day i have not found anyone who wants to do it so i have come here to get a better idea of what i could do or what is the best option. The bathroom has been tiled and there is a bath tub under where the shower is meant to be. Sorry if ive not given enough information im not very clued up when it comes to bathroom wiring or any wiring really.