I stay in Glasgow also but I don't know of any specific mobile engineers. There is a company called Caravan Medic who say they are national mobile based engineers but I have no experience of this company and don't know if they have any Glasgow based engineers. An engineer fitted my motor mover through Powrtouch and he worked for himself but he came through from Fife and said that he covered the whole country, I don't have any details though. Let me know how you get on as I find the dealers are all a fair bit away and the mobile service would be handy.