Introducing The Origin Casement Window

Windows completely bespoke to your exact requirements, and delivered with all the benefits of security and style.

The Origin Casement Window

Casement windows are a fantastic way of allowing natural light into your property and
creating a sense of space. Origin Casement Windows are available in
both our OW-70 and OW-80 ranges.

Our OW-70 boasts the thinner sightline, which facilitates more glass and better views.
The OW-80 however can be manufactured in a larger size, up to 7.0 square metres.

Why choose the Origin Casement Window?


Up To A 20
Year Guarantee

High Grade

Tight Seals



150 RAL




OW-80 casement

The OW-80 Casement Window comes with an industry-leading external and internal flush casement.

Your windows can be made up to an impressive 7.0 square metres in area, and you’ll have a vast variety of options to suit your style, with more than 150 RAL colours,  colour-coded gaskets and handles to choose from.




OW-70 casement

Although it may offer fewer customisation options than the OW-80 and a maximum area of 4.8 square metres, the OW-70 has as the advantage of ultra-slim sightlines – at just 65mm.

Constructed from premium grade aluminium, it boasts the same high level of security and is covered by the industry-leading guarantee of up to 20 years.

Thermal efficiency

A polyamide thermal break built into our frames gives our windows an efficiency that exceeds current building regulations.

All OW-80 windows use triple glazing and sophisticated Aerogel technology – also used in space suits – to ensure your home is warm in winter, and cool in summer with the added bonus of lower energy bills.




Highly Secure

Every Origin Casement Window from Lincolnshire Bi-folding Doors comes with peace of mind for you and your family built in. This includes Yale’s renowned Encloser locking system, which offers the highest level of security.

Every window can also be constructed with the highest grade stainless steel hinges as well as hinge guards, crimped frames and locking handles.

Your Colour

Origin windows can be manufactured in more than 150 RAL colours, so you’ll be able to choose a style thats perfect for you. If you choose one of our 11 most popular colours, we will be able to deliver them on an even faster turnaround.

Should you prefer a traditional wood effect, our wood grain options offer a stunning authentic finish.


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