Windows distinguish the architecture of a home – both inside and out – and have to meet a broad range of modern demands.

We believe, the aim to make architecture a mirror of your personality is reflected not least in the design of the house door.

Modern architectural glazing façades in perfect handcrafted mullion-transom-construction With walls and roofs made of glass: from the ground floor up to the eves, from the gables to the ridge of the roof – with clear gains of in terms of living quality and aesthetics.

Effective protection against burglary: a task that a modern window or door must meet today – also at OST.

The views or glimpses that a window affords are not always desirable. Intense summer sunlight can also affect the living climate.

No summer without them: Insects – whether stinging, sleep-robbing or simply annoying. But there are ways to protect buildings from these intruders.