Innovative aluminium fenestration for Architects

Achieve ground-breaking architectural designs with the extensive range of Sieger Systems.


The next generation of luxury aluminium glazing systems

Sieger are expert designers and fabricators of award-winning fenestration, advanced aluminium door systems and roof glazing. Based from state of the art fabrication facilities in South East England, Sieger offer the latest designs in modern architectural glazing manufactured bespoke to each project. The in-house design and installation team have worked on hundreds of projects throughout the UK from multi-million commercial and residential projects through to high specification residential renovations and extensions.

The worlds tallest and slimmest thermally broken aluminium bifolding doors are available exclusively from Sieger, pushing the boundaries of architectural design. These advancements in building envelope design have been born from the markets call for bigger glass units, slimmer sightlines, taller doors and larger openings. These modern systems are revolutionising the industry, allowing architects to achieve the design they want without compromise.

 The innovative systems from Sieger are designed and manufactured bespoke to each project to cater to all architects requirements. Sieger ensure that all their systems are manufactured to the highest quality to offer outstanding aesthetics as well as performance levels that achieve and excel the necessary performance. If you are interested in Sieger Aluminium Systems for your architectural projects or would like to view the systems in person at the showroom then please get in contact with our team.

The Full Package

You can find a window or door to suit every opening in your build from the Sieger product range. Ensure you achieve a cohesive and connected design by using Sieger products throughout your design.


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The Sky House Design Centre

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