COVID 19 - Diamond Glass & Windows LTD.

Diamond Glass & Windows LTD. will remain open following the 3rd Lockdown and we aim to operate as close to ‘normal’ but our Showrooms in Brighton & Shoreham will be closed.
Our sales team are available to provide you with a timely quotation based on you providing pictures and approximate measurements of windows, doors etc.
ORIGIN Aluminium Windows and Doors | Bi-Fold Doors | Slimline, Premium Windows

Looking for the door of your Dreams? Use our Door Designers and create your own, personalised door now >>

Looking for your dream door? Use our Door Designers now

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01293 522533

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ORIGIN Aluminium Windows and Doors

Designed and manufactured in Great Britain and made from the highest-grade aluminium, perfect for any type of home. Whether incorporated into a new-build, an extension or an older period-style property, you can enjoy your home and its surroundings all year round.

A window designed just for you, from the size of your window to the colour of your handle, all of our orders are completely bespoke so that you can design a window that’s perfect for your home.


The OB-49 exceeds British Building Regulation requirements for optimum thermal efficiency. New for 2019 this slim line door has been re-engineered from the industry-renowned OB-72. Origin OB-49 Bi-Fold Door with 49mm profile provides an unbeatable panoramic view of your surroundings.



Designed and manufactured in Great Britain and made from the highest-grade aluminium, the Origin Bi-Fold Door is an expertly crafted door system, perfect for any type of home.


The Origin Slimline Window (OW-70) is our slimmest window yet, combining strength with sleek design to create the finest aluminium window on the market today.


Origin OW-80 is a casement system encompassing fixed or sashed casement configurations, bays, gables and French windows, perfect for bringing the traditional design to the 21st century.