0203 835 2007


With a contemporary or traditional style, supply only aluminium vertical sliding windows, expertly manufactured by 6-Day Doors suit any existing sash window replacement and ideal for newly built openings where the sliding sash design is required. Refined and aesthetically appealing, our aluminium vertical sliding sash windows come with insulated frames, excellent sealing, high performance glass and premium-grade hardware. Perfect for the fenestration or construction trade and for homeowners wanting to buy direct.

Made using the renowned VS 600 system, these high specification aluminium vertical sliding sash windows come in a standard contemporary design or can be crafted in a more period style with sash horns and other classic style features. You can view our aluminium sash windows fully installed in our Brentwood, Loughton, Romford, and Epsom showrooms.

Each window order comes complete with detailed fitting instructions, is securely packaged for delivery, and includes a 10-year guarantee along with competitive pricing and expert support.


6-Day Doors is dedicated to providing installers, construction, and property professionals with top-quality aluminium vertical sliding windows, built to the highest specifications to help you complete your projects with fully compliant and superior windows.

Available in a range of sizes aluminium vertical sliding windows come in a range of sizes, with bay windows also available.  Additionally, we can customise your new windows with astragal or Georgian bars, tilt in facility for cleaning. We also offer window restrictors, and a selection of locking and non-locking fitch catches, and window pull handles in a variety of finishes. Trickle ventilators can be integrated as required, to meet the specific installation requirements.

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


  • Contemporary or period aluminium vertical sliding windows.
  • Optional glazing bars, Georgian bars or applied bars.
  • Tilt in facility for easy cleaning.
  • Prompt quotations.
  • 10-Year Guarantee.


All our aluminium vertical sliding windows come with a full suite of cills, frame add-ons, extras, and ancillary profiles, making us a one-stop-shop for trade suppliers. For more information and pricing details, please contact us today.