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The successor to W20, W40 allows Architects a 24mm glass specification with Secured By Design locking.

Installed into many Dockland type warehouse conversions where its strength, good looks and versatility have made it a popular choice.

Life expectancy
Clement steel windows and doors are manufactured from the highest quality hot rolled recycled steel to ISO 9001. They are strong and robust. With regular maintenance the anticipated life expectancy generally exceeds the industry norm. Click here for pdf.


For full W40 details click here
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EB24 | EB14 | W20 | W40 | Brooking | Fire Resistant | Conservation Rooflights

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To find out what Sarah Beeney and some of our other clients have to say about us click here. Sarah Beeney says: ‘Clement Windows make the prettiest bespoke steel-framed windows. To read more about us on channel 4's website click here.

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We are pleased to support Charles Brooking with Britain's only comprehensive collection of architectural detail originating from buildings, domestic and commercial, ranging from castles and palaces or the grandest country house to the smallest artisan cottage.