Branch Locations
Express Trade Windows currently has 1 depot, with more planned before the start of 2022.


Alitherm windows and doors have been designed to reduce heat loss by the use of a thermally broken aluminium frame with a polyamide bridge.

We offer three ranges of aluminium windows and doors:

  • The Alitherm 300 range which offers slim sightlines, chamfered edges and a square bead – available as an A energy rated window.
  • The Alitherm 600 range, offers a more ornate finish with an ovolo finish to the external edge of the sash and outer frame. With a frame width of 59.5mm and frame to bead depth of 84.5mm the window is available as a B rated energy window
  • We also offer the Evolution range of windows which has been specially designed as a thermally broken direct replacement for old steel windows. It is ideal for listed buildings or where planning constraints are to be considered.


Our range of Aluminium windows have been designed to reduce heat loss with the use of a thermally broken frame with a polyamide bridge.  They feature elegant slim sightlines which are enhanced by an ovolo profile edge appearance.


 Available in a wide variety of powder coated finishes and configurations, they are strong and durable, as you would expect with Aluminium.

Colours Available

We have a range of colours available in this product. See below for our colour options:

Energy Rating

Our Windows are measured using the Window Energy Rating Scheme (WER), with an “A” rating being better than a "C". There are various options for glazing your aluminium windows and once you have chosen these we will happily provide you the Energy Rating/u-value information should you require this.