Supplying sliding sash windows to tradespeople and homeowners, Advance Building Plastics are based in Hereford and Kingsbridge. Request an online quote for free, or contact us today or find out more about our sliding sash windows.


Sliding sash windows can be fitted with Georgian bars, sash horns, weather bars and a deep bottom rail, to give this window an authentic look.

Equal Sightlines

Both the large and small sash profiles have been manufactured to give equal sightlines to the top and bottom of the uPVC sliding sash window.

Smooth Operation

Balance mechanisms within our sliding sash windows ensure for smooth operation. This makes it easy to open and ideal for all property types.

Colour Options

Glass Options

white chartwell red brilliant-blue steel-blue agate
arctic-2 autumn-2 chantilly-2 charcoal-sticks-2 cortona-2 cotswold-2 digital-2 everglade-2 flemish-2 florielle-2 mayflower-2 minister-2 oak-2 pelerine-2 stipolyte-2 sycamore-2 taffeta-2 warwick-2

Secure Sliding Sash Windows

Security is a priority for Advance Building Plastics when we supply sliding sash windows to homeowners and tradespeople. That is why our windows come with secure locking mechanisms as standard. The locking systems are crafted from the most durable and robust materials on the market. Each durable window is created to last, ensuring peace of mind and value for money.

Our sliding sash windows also come with spring balances, which will stop the door slamming shut and keeps little fingers and the window itself safe. Child restrictors can also be added to stop the bottom sash from being totally opened, adding further safety to the property. All the security upgrades we offer are available in a range of styles to uphold the classic look of sliding sash windows while maintaining the safety of the home.

Each of our sliding sash windows are fitted with double glazed panels. This glass is fitted with lockable catches for added security. If you are concerned the glazing isn’t performing as well as it should, get in touch today and find out more about our double or triple glazed unit replacement service.

Low Maintenance Design

Unlike the vertical sliders of old, our modern uPVC sliding sash windows need very little upkeep to stay looking the best over time. Both sashes of the sliding sash window tilt inwards, allowing for easy cleaning. Gone are the days on having to pay for an external window cleaning or balancing on ladders to keep sash windows looking clean and fresh. Besides generally wiping it down with a damp cloth, all homeowners need to do to keep the handles and moving components working well is to occasionally dust them.

There are a range of colour finishes on offer when choosing a sliding sash window supplied by Advance Building Plastics. Each hue we supply is completely fade proof, meaning they will never need varnishing and won’t flake or peel in the sun. The range of uPVC sliding sash windows come with concealed, low level PCE gaskets as standard. These gaskets will keep the weather conditions at bay, helping the property stay condensation and leak free.

Request a Sliding Sash Window Quote

Request a quote for a set of vertical sliding windows via our online form. Once submitted, we’ll be in touch as soon as possible with a supply only quote. It’s as simple as that.

You can also visit our showrooms in either Hereford or Kingsbridge to discuss supply only quotes in person.


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