Sliding Sash Windows

Our uPVC sash windows combine traditional style with modern technology for outstanding performance

Sliding Sash Windows

Our modern sliding sash windows provide all the character and appeal of traditional sash windows, but incorporate up-to-date technology, for outstanding performance with minimal maintenance. When you’re replacing sash windows, we’ll provide a replacement window that’s just as attractive as your original window. Our double glazed uPVC sash windows are reliable and sturdy, they’re sure to be ideal for your home.


Brush gaskets eliminate draughts and noise, while the clever tilt mechanism on our sash windows allows you to clean the outside of the window from inside. Mark Robbins Improvements Ltd pride ourselves on the reliable and professional service we provide for all of our customers, working to ensure that any uPVC double glazed sash windows you want are fitted swiftly and securely without fuss.
upvc windows

Our sash windows are manufactured locally in factories in Somerset. Available in a range of finishes, so that when installed, they will be perfectly suited to your home. As well as a selection of beautiful finishes, there’s a choice of numerous decorative and practical glazing options that can be included in your window.

We use the very best hardware and top-of-the-range operating mechanisms which ensure smooth operation, and our mock horn and external Georgian bar options make our sliding sash windows virtually indistinguishable from the original windows they may be replacing.

  • Available with a range of finishes and glazing options including lead designs and Georgian or astrigal bar
  • Energy rated options available
  • Reduced noise through multiple brush gaskets and multi-chambered frames
  • Smooth, easy glide operation
  • Clean the outside from in with tilt in sashes
  • 10-year guarantee as standard

Our Sliding Sash Windows are available in 9 standard colours from smooth white to 8 wood grain options. The wood grain colours are foiled on both sides or one side with a smooth white interior. Our woodgrain finishes are designed to mimic the grained texture and appearance of traditional timber on a double or triple glazed sliding sash UPVC window.

Sliding Sash Colours

Easy maintenance and cleaning

You can now avoid the need for costly cleaning chemicals, varnish and paints. Manufactured using the latest modern materials, your new windows will not rot, flake or peel. Your new windows will simply require an occasional wipe down with a damp cloth.

The PVC-U vertical sliding sash windows not only slide up and down like traditional windows, but tilt inwards so that the panes can be accessed making it easy to clean your windows from the inside.

easy clean sash double glazing

Not quite what you are looking for?

Our triple and double glazed windows are available in these other stunning options

Let’s discuss the right product for you. Call a member of our team on 01458 445565

Or simply complete our online form to book an appointment