Traditional Box Sash Windows

These timber sash windows embrace the all style and function of traditional box sash windows, yet are enhanced with modern construction and materials. Smooth-running and robust, they feature a classic weight-and-pulley mechanism.

Suitable for non-listed buildings and contemporary developments, our sash windows come in a selection of hardwood and softwood frame finishes, plus RAL colours, to provide freedom of design.

With the option of safety glass, obscured glass, acoustic glass or solar control glass, our wooden double-glazed sash windows can be tailored for every situation.

These box sash windows offer impressive technical performance too, demonstrated by wind load testing, water permeability and air tightness test results.

For heritage sash windows for historic and listed buildings, please browse our heritage windows and doors section.