Windows contain clues to a building's history.
Caring for Your Old Windows O riginal and old windows are the most threatened element in preservation today, despite the fact that they are character-defining features of both the exterior and interior of a historic building. The replacement window industry aggressively markets to owners who don't know what to do with their rattling windows. Replacing an old window with a factory-made model destroys the rich variety of window details that makes each old house unique. Fortunately, there exist sensitive, cost-effective solutions for the owner to consider before plunking down hundreds of dollars to buy a modern replacement. Cold air blows in around the sash because they have to be loose enough to operate.