Aluminium windows – casement windows

Aluminium casement windows are a very popular choice in homes. They combine the traditional opening outward British window, with the modern slim lines of an aluminium framed system.

Strong and durable, large opening sashes are possible, with a choice of opening mechanisms. Matching fixed frame windows are also available – plus other opening options. We also have a range of handles to suit every taste and every home!

Please read on below for more information.


Our aluminium windows are suitable for all residential installations and general light use commercial applications.

An enhanced system designed to comply with the latest revisions of Document L. Our casement window system can achieve window energy ‘A’ rating.

Profiles feature an extended polyamide thermal break to enhance thermal performance
Fabrication method is by crimped mechanic corners
Air – Class 4, 600pa
Wind – Class E, 700pa
Water – Class 5, 2000pa
Frame depth (‘thickness’) of 70mm
28mm toughened double glazed or upgrade to 36mm triple glazed units.

Our standard profile can achieve the sash dimensions below – but if you upgrade to our heavy duty sash and you can have even bigger windows!

  • Side hung maximum width 700mm
  • Side hung maximum height 1400mm
  • Top hung maximum width 1400mm
  • Top hung maximum height 1500mm

Outer frame and sashes are in a contemporary flat and square style
Dummy sashes available – a very popular option to achieve uniform glass dimensions and a sleek aesthetic.
Full range of windows including angled bays and square bays
Fixed picture windows and tilt only or tilt & turn windows available – for tilt/turn windows please see this page
Full range of RAL colours available.
Dual colour options also available.
Option for metallic textured finish.
Option for woodgrain finish.

Suitable for manual, solar and in-glazed Venetian blinds.
Handles available in black, white, brushed chrome, polished chrome and anthracite grey.
Option with or without external cill, we also manufacture bespoke aluminium sill pressings.
External cills available in 85mm, 125mm, 150mm, 190mm or 225mm

For bifolding doors to match our aluminium windows, please see this page

For sliding doors to match our aluminium windows, please see this page