Emperor Concealed Bi-Fold

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Concealed Hinge Bifolds

Passes With Flying Colours!

Introducing our patented Concealed Hinge Bi-folding Doors. These doors recently passed PAS24 testing for security and the low threshold option is now weather rated. We are pleased to announce they are also now Secured by Design specified. These bifold doors have no unsightly hinges breaking up the clean lines of the doors. The specially engineered hinges are fully concealed when the doors are closed, resulting in a clean look. Why not come and see them for yourself?

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Our Products - Quality & Innovation As Standard

Our ever improving product range is manufactured at our factories here in the UK to the highest standards and is at the forefront of product development and innovation. We have been manufacturing aluminium windows and doors for the domestic market since 1985. All our products are bespoke and made-to-measure, manufactured to your exact specifications.

We have an extensive product range, from some of the biggest names in the industry. Many of these products are available to see in our Grand Design Exhibition Centre. We are your aluminium one-stop-shop, providing for all your aluminium window and door needs.

Why Choose Duration Windows?