Sliding Sash Windows

There is something timeless and charming about sliding sash windows. They will give you the classic look you dream of paired with a modern design.

Our uPVC sliding sash windows make it effortless to open and close the window, thanks to the spring-balanced mechanism. The vertical sliding nature of our windows means they can slide vertically in either an upwards or downwards motion.

Adaptable for children. Restrictors can be fitted to the windows to prevent the bottom sash sliding fully. This makes it safer both for younger children and their fingers!

They are also are thermally efficient and include advanced features to protect them from the weather, including a “concealed low-level post co-extruded gasket”.

Get Quote Contact us

Product Colours


Black Foil


Irish Oak


Chartwell Green

Light Grey

Golden Oak


Got an incredible project right now?

Use our online quote generator to get an instant estimate on your project!

Why choose Dauntsey Building Plastics

At Dauntsey Building Plastics we offer an excellent range of beautiful and elegant double and triple glazed upvc windows. We take great pride in helping you, our customer choose the right external upvc windows for your home, and we feel that no other upvc window supplier can provide you with a higher standard and specification of upvc windows whilst offering such competitive prices.

Over 20 years experience

We have over 20 years’ experience in the UPVC and Aluminium market.

10-year guarantee

All products are made to order within 7-14 days, and come with a full 10-year guarantee.

Efficient and innovative products

We supply and install the best, most efficient and innovative products the market has to offer.

Related Products

Patio Doors

The classics are classics for a reason: brighten up your home with a custom-made uPVC patio door.

Flush Sash Windows

Traditional design, modern materials, customisable textures: the smart alternative to high-maintenance timber.

Lean-to conservatories

This provides a cost-effective conservatory and is one of the most popular styles. Lean-to conservatories are the ideal solution if you have limited space.

What our customers say

Got an incredible project right now?

Use our online quote generator to get an instant estimate on your project!