This cottage in Powys had ill-fitting PVCu windows which detracted from its authentic character so the homeowners chose to suit substitution sash windows. The newly put in sash windows have already been colour matched to tie the two the roof for the outdated cottage and the new glass connection extension. https://eye-liner05814.blogthisbiz.com/42545027/the-5-second-trick-for-sash-window-draught-proofing