Sash Windows

About Our Sash Windows Service

Sash windows are a defining feature of Georgian and Victorian properties across Lincolnshire's market towns — from the period terraces of Boston and Louth to the townhouses of Horncastle and Spilsby. When original sash windows are beyond economic repair, or where poor-quality replacements have been fitted that do nothing for the property's character, a well-specified replacement sash window can restore both performance and appearance. At Red Lion Windows, we supply and fit UPVC sliding sash windows that replicate the vertical sliding operation and slim sight lines of traditional timber sashes, while delivering the low-maintenance performance and energy efficiency of a modern double-glazed frame. Profiles are available in white and in a range of painted finishes, including heritage colours that complement conservation area settings in many Lincolnshire towns. Unlike some suppliers, we specify double-glazed sash windows with appropriately slim sealed units to avoid the bulky, heavy appearance that thicker glass can create in a traditional-format frame. Georgian bar patterns and horn detailing can also be incorporated where the original window carried those features. If your property is in a conservation area or a listed building, we will advise on the local requirements before ordering — some conservation areas have specific policies on sash window replacements, and in some cases secondary glazing may be the appropriate solution rather than replacement. We will be straightforward about what is and is not suitable before you commit to any work. Contact us for a free survey and quote on sash window replacement anywhere across Boston and Lincolnshire.