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High-quality windows

Wood and wood-aluminium windows by OST

Design and function in perfect balance

Windows distinguish the architecture of a home – both inside and out – and have to meet a broad range of modern demands. In addition to the proper design and high quality standards the functional aspect is of utmost importance: exceptional insulating properties, high-quality safety technology and the right level of protection from the cold, sun and noise are critical product features.

Perfect Design for every project

  • Single-family and multi-family houses
  • Large projects
  • New buildings and renovations
  • Restoration and conservation
  • Low energy, passive and beyond
  • Modern and architectural
  • Classic and elegant

Premium solutions to meet all demands.

Quality, no quantity: windows are not a mass-market product to us. Instead, they are made to measure – planned individually and crafted individually, to fulfil the wishes and expectations of our customer. It begins with selecting the highest quality materials and components.

The window range from OST includes various product series, each of which allows for a broad array of variations. The spectrum ranges from classic wooden windows to modern combinations of wood and aluminium, naturally made to measure and available in many custom shapes.

Be it a renovation or new building: energy specifications have become decisive. Our selection of window designs is able to meet all energy needs – be it for low-energy houses, passive houses, or even above and beyond. We are not only optimally positioned for fitting new buildings. We also provide made to measure, individual solutions for finding and eliminating weak spots in the energy efficiency of renovation projects or listed buildings.


The nature of architecture – wooden windows by OST

Wooden windows, made according to the finest traditions and premium standards of quality: a stylish and perfectly designed choice – to suit your wishes. The design possibilities are basically limitless due to the wide assortment of profiles and wood types available, as well as the virtually endless selection of colors, stains and varnishes – with the option of different finishes inside and out.


An excellent combination – wood-and-aluminium-windows​

Enjoy the combination of an easy-care aluminium exterior and a cosy wood interior. Both elegant and functional: exclusive woods such as larch, meranti and oak provide a stylish and exceptionally pleasant indoor ambience. The aluminium outer shell not only provides the highest degree of weather resistance, but also makes it possible to use exquisite woods for the interior. The aluminium shells are available in any desired RAL colour.

The right glass is what counts

When selecting windows, glazing plays a crucial role. Here too, our large selection of glass is able to satisfy the most varied of tastes and requirements.

Our standard option: insulation glass with warm edge spacers, with the option of inert gas filling to achieve optimal Ug-values – with double or triple glazed construction. It can all be combined to suit your needs and wishes, with the option of safety glazing, noise protection glass or solar protection glass. 

Product range

Not least, our products embody consummate style and an all-embracing aesthetic. Our range of products has therefore expanded accordingly over the years:

The broad range of options for design and function allows us to provide made to measure solutions. Be it for new buildings, renovations or conservation, for single-family or multi-family houses or large properties – we implement every project to suit your individual preferences. For a detailed consultation, get in touch with us using our contact form or call us on (+352) 71 90 91-1.

We look forward to answering your questions!

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