Ventrolla do a great job!

My house is estimated to have been built in the 1780s, and has two sash windows, one on the ground floor, and one in the bedroom. they were not in good condition – in fact, Ventrolla recommended replacing the lower sash in the upper window, to which I agreed, as I could only move this (old) window with great difficulty. Part of the outer frame was rotten as well, and Ventrolla replaced this too. I now have two fully working windows, which are draught and rattle proof, and I hope that my house will be much warmer next winter, thanks to Ventrolla!