The Sash Window Repair Company Do you love the period charm of your sash windows but hate the draughts, rattles, rot and expensive heat loss? With over 30 years’ experience we can help! We offer sash window repair, double glazing, draught proofing and replacement windows. Book your FREE no obligation survey and quote today. Discover how we can help with your rotten, draughty, hard to open sash windows.