hey people jus wondering if i could get some advice regarding my double glazing basically i live in a terraced house 1950,s , my windows are double glazed and relatively new a few years i suspect but the sills on the outside are really old and just terrible looking also the the whole house inside has wooden frames inside , i suspect whoever owned the house put the double glazing in without changing the rest simply to put the price up , what are my options i want rid of the wooden frames inside with just pvc cills and ideally would like all new sills on the outside but keep the double glazing units as they are in fine order , is this possible or whats the options , many thanks