Sunflex Windows and Doors by Diamond Glass & Windows of Crawley | Bi-Fold | Internal Bi-Fold
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SUNFLEX Aluminium Bi-folding Doors


Aluminium is an ideal material as it’s light, strong and stable with slim profile sections to minimise the visible framework and maximise the glass area. Gain reassurance in the most exposed locations with this virtually maintenance free material.

SUNFLEX folding doors lead the way in innovation and design setting the standards for other companies to follow. Rather than emphasising on only one or two elements that make the SUNFLEX doors stand out there are countless features that makes the SF45, head and shoulders above the rest. Slim sight-lines, contemporary, square edged profiles throughout and colour matched furniture in line with the frame make SUNFLEX doors the best looking on the market.

Our Sunflex Range


SUNFLEX SF55 & SF75 aluminium bi-fold doors lead the way in innovation and design, setting the standards for other companies to follow.


When thermal performance is not important you can save money by using our internal and commercial bi-fold doors. The SF45 Bi-folding Door could be the ideal Bi-folding door for you.