Felt seals on windows and doors eliminate dust, rattles and whistles from the wind. They also operate as a draught seal which reduces cooling and heating costs for your home or business. Over time felt seals deteriorate from exposure to ultraviolet light and friction. Perished felts are brittle with insufficient hair, and in turn prohibit them from functioning correctly. If required we will replace any worn felt seals with premium grade mohair felts for smooth airtight windows and doors.