Our Sliding Sash Windows offer the very best in UPVC window technology…

We have managed to fashion a sliding sash window with an impeccably sculptured frame, bead, and Georgian bar that you can very easily complement with other window styles in our fantastic range. Although traditionally styled, it can be paired with modern designs, and where you would expect it to only slide up and down, this sliding sash window can also tilt inwardly, which makes cleaning it the simplest of household chores.

UPVC Sash Windows

Two sashes feature in our sliding sash windows and can be operated independently, giving you the option of sliding it upwards and downwards.

Sliding sash windows used to be constructed from timber, but our sliding sash designs are all manufactured from UPVC and aluminium for the purpose of energy efficiency and simplified maintenance. It’s a window that has everything going for it.

UPVC Sash Windows
UPVC Sash Windows
Sash windows are best with EXTREME protection

We wanted to make our EXTREME sash windows as secure as they could possibly be, so that’s why the encompass 11 visible locking points. Compared to a standard sash window, they are 3 times more secure. 

  • EXTREME enhanced security with centre VAULTBOLT and multi cam locking technology.
  • EXTREME enhanced durability with UNIQUE superglide gearbox ensures smooth operation.
  • EXTREME enhanced COMPRESSION and acoustics with interlocking hinge bolts and optimum weatherseals.

Sliding Sash Frame

Available in welded joints with 45-degree corner welds for a smooth, sleeker finish and mechanical joints to take the design to another level, the 90-degree welds give a more traditional sash window finish.

Ultimate Glass

High performance next generation glass for superb energy efficiency. With acoustic glass to block out the sound of a bust neighbourhood, or patterned privacy glass for a bathroom, we’ll have the perfect solution for you.

Sliding Sash Locking

Secured using a snail cam that is fitted to the top face of the sash. By turning the lever, the cam is released from its keep, giving you the option of either a key-locking or non-locking system.

Sliding Sash Handles

Our handles come in a range of colours to suit your home, they’re built to last with robust materials and quality finishes.

Weather Proofing

Wool pipe strips that provide an excellent layer of defence against the elements. Available with colour-matching wool pile to ensure that every detail of you window matches perfectly.

Versatile Design

As standard, our Sliding Sash Window also comes with a slide and tilt facility, allowing you to clean both the top and bottom sash from inside your home.
An above average standard of energy efficiency…

We insist on giving our customers A+ energy rated EXTREME sash windows as standard so that they benefit from the highest standard of energy efficiency. The windows will keep out the elements and harness the warmth of the sun only when it’s needed most.

A welcome drop in the cost of your energy bills will come about because of having replacement windows installed by Trent Valley.

White UPVC Windows
Oak Envisage Flush Windows
White UPVC Windows


It’s not just a case of picking a window style. No, the window then needs customising with some hardware, glazing and an appropriate coloured finish. Customise the window in a way that reflects your personality.

Glass that merges style and privacy…

A window can only do what it’s supposed to if it has a strong-performing glass within it. When you come to select some glazing for an EXTREME window, think about the level of visibility that you want it to offer. You can have ultimate privacy glazing or a straightforward clear glass if you have a view that you want to enjoy indoors. Help is on hand courtesy of our advisors if you need it.

Made with the utmost precision…

It takes so much hard work and dedication for our craftspeople to create our traditional and contemporary-styled handles. They are a centerpiece of the window and make operating it the simplest of tasks.

A secure locking system is integrated in the handle which contributes to the overall security of the window and keeps it tightly fastened when locked.


Simply fill in your details for your free, no obligation quotation, and click "Get Quote"

Your details
What would you like a quote for?
Content Block
  • This field is for validation purposes and should be left unchanged.

Want to speak with an Advisor? Give us a call on 0115 959 8000

Our friendly team will be pleased to help with any questions you may have.


Simply select the brochure(s) you would like to browse, fill in your details, and then click ‘Download’.

Step 2 - Your details:
  • Hidden
  • This field is for validation purposes and should be left unchanged.

Visit Trent's Nottingham Showroom

Try before you buy at our new showroom in Nottingham. Browse our many products in person and speak with our team of advisors and designers about your next home improvement project.

Get Details & Directions