0203 835 2007


Expertly-crafted uPVC vertical sliding and sash windows from 6-Day Doors provide the ideal replacement for dated timber sash windows or for new or existing openings needing the benefits of a sliding sash. Available in traditional styles or a more modern look, our uPVC vertical sliding and sash windows are refined and aesthetically appealing. Multi-chamber PVCu frames, excellent sealing, high performance glass and premium-grade sliding sash hardware. Perfect for the fenestration or construction trade and for homeowners wanting to buy direct.

We also offer a range of Rehau vertical sliding windows. Rehau’s vertical sliding windows combine the traditional aesthetics of timber sash windows with the modern benefits of uPVC. They feature a unique compound that guarantees a smooth, high gloss finish, ensuring your new windows retain their pristine appearance for years to come. These windows will never warp or rot and, of course, will never need painting. As with all Rehau products, these vertical sliding windows meet the highest energy-saving standards and comply with BS7412 requirements for the standard of a manufactured window.

These high specification uPVC vertical sliding sash windows come in a standard contemporary design or can be crafted in a more period style with sash horns, foiled finishes and other classic styling features. You can view our uPVC 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, along with competitive pricing and expert support.


6-Day Doors is dedicated to providing installers, construction, and property professionals with top-quality uPVC 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 all uPVC vertical sliding windows are available as individual windows, coupled modules, bay windows and combination sets. Additionally, we can customise your new windows with astragal or Georgian bars and 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 when fitting new windows and doors. That is why we deliver our uPVC sliding sash windows within just 6 days. However, our commitment goes beyond swift delivery:

  • High quality trade supply sash windows.
  • Optional glazing bars, Georgian bars or applied bars.
  • Tilt in facility for easy cleaning.
  • Fast Trade Quotations.

All our uPVC 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.