Active job

Replace Window sill on double sash window

EEEK this is a biggy. The windowsill on my double sash window is rotten. I have been told the whole windo must come out and them a new sill made and then all fitted together again. Depending on the cost (as the window is in the loungeroom) I may decide to replace the window with french dorrs - so would like to get an idea of price for that at the same time. 1920s villa - the photo is not the actual window but gives you an idea of the house.