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01293 278326

UPVC Windows

'A' Rated UPVC Windows from Knowles Stained Glassworks

At Knowles Stained Glassworks we understand the importance of having the correct type of windows as they are essential to each home. They further the style and the look that you want to achieve, moreover play a key role in energy efficiency of your property. It is vital that the windows you purchase today will still be performing for you in years after you have bought them. We install UPVC Windows which are Energy 'A' Rated. Each window system is manufactured from materials that are extremely high quality and obey with the British Standards Institute.


UPVC Windows from Knowles Stained Glassworks


Knowles Stained Glassworks make it their priority to help both domestic and commercial customers in feeling safe and secure within their property. We seek to find a UPVC Windows unit that complements the scenery of your home and offers durability and security with high standard security locks and hinges. Over many years, our experience within the glass industry has enhanced and at Knowles Stained Glassworks we are able to deliver excellent UPVC Windows.

For more information about our products
please call us on
01293 278326

It is important to us that every installation that is carried out is attended to with care and expertise. We are Certass approved so you can be assured that your installation complies with all Government regulations.

UPVC Windows Built to last

As our UPVC Windows are built to last year after year you can forget about warping, discolouration, leaks and draughts as our expert team of installers guarantee that each unit installed presents long term performance, so you can be confident that you made the right choice.

Knowles Stained Glassworks offer UPVC Windows with style & security

Our UPVC Windows are available in a host of different styles and designs and are complete value for money as they are aesthetically pleasing, offer long term durability and are energy efficient. Each window is custom made for our clients property and are fitted with hinge claws and multi point locking. We have installed many of these window systems in homes around London, Surrey and Sussex.

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