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Sliding Sash Windows

Using the latest technology, we can offer the authentic look of a period sliding sash window combined with the energy performance, security and low maintenance of a modern window. We can achieve A energy ratings and centre pane U-values as low as 1.4W/m2K. Designs can vary – including arched-top windows – and you can choose between traditional cords and weights or the modern spacesaver spiral balance type. There’s even an easy-clean version, where the sashes tilt in as well as slide up and down, and a dual swing window that can give the appearance of a sliding sash.

Traditional Cords and Weights

  • Meets planning requirements for sensitive locations
  • Range of mouldings and fenestration styles to suit the period of a building
  • Range of traditional or contemporary hardware designs
  • Factory glazed and finished.

Spiral balance

  • Meets planning requirements for sensitive locations
  • Adjustable spiral balance reduces width of sash box
  • Range of mouldings and fenestration styles to suit the period of a building
  • Range of traditional or contemporary hardware designs
  • Factory glazed and finished.

Tilt and Slide

  • As Spiral Balance
  • But with a unique track tilting mechanism that allows cleaning and decoration to be carried out from inside the room
  • Secured by Design (Optional).

Dual Swing

  • Meets planning requirements for sensitive locations
  • Fully reversible
  • Easy handling of all sash sizes – even by people with reduced mobility
  • Built-in child-proof safety restrictors
  • Secure night vent position
  • Outstanding foul weather performance to both BS6375 parts 1 and 2.

‘Cords and Weights’ traditional sash windows

Image of Westport Affliates