0203 835 2007


Trade Supply aluminium casement windows manufactured and supplied by 6-Day Doors suit replacement or new window projects and are designed to provide the benefits of thermally efficient, secure and stylish windows for the trade or homeowner wanting to buy direct and arrange their own installation.  Available with a choice of frame, vent  and transom sections, our aluminium casement windows are infinitely customisable.

6-Day Doors has grown to become one of the country’s leading producers of aluminium casement windows.  Benefit from our fast and reliable supply only or supply and installation service.  You can view our entire range of aluminium casement windows in four large and convenient showrooms in Brentwood, Loughton, Romford and Epsom Surrey.

All come with full fitting instructions, fully protected for site delivery, competitive pricing, and dedicated expert support, making us the preferred supplier for aluminium casement windows.


6-Day Doors provide installers, construction and property professionals with quality-made aluminium casement windows, with the best specifications and features, letting you complete your property projects with fully compliant and high quality windows.

Tested to the latest security, insulation and weather performance requirements, our aluminium casement windows come with high quality friction stays, with optional fire-escape, egress or easy clean facility.  Also available are window restrictors and a choice of locking and non-locking handles in various styles and colours.  Trickle ventilators are neatly position on extended frame heads or add-on sections to meet the installation requirements.

We can help you configure the right windows for your project, whether you need to meet a particular specification, functional requirement or design.

We recognise the importance of efficiency in your line of work, which is why we deliver bespoke designs within just 6 days. However, our commitment goes beyond swift delivery:

  • A complete range of aluminium windows.
  • Contemporary, classic and steel-look designs.
  • A choice of frame profiles.
  • Fast turnaround on quotations.

All our aluminium casement windows are accompanied by a full range of cills, frame add-ons, extras and ancillary profiles giving you a one-stop-shop trade supplier.  Contact us today for prices and more information.