Frameless window

Our windows and doors with a completely glass surface provide up to 15% more natural light and remove the line between your interior and exterior.

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Clara is a brand of AGC. Based in Louvain-la-Neuve (Belgium), AGC Glass Europe is the European glass branch of AGC (Japan), the world leader in flat glass. The AGC group has 200 companies in over 30 countries with more than 54,000 employees, focusing on 4 main business segments: Glass, Electronics, Chemicals and Ceramics.

photo Frank loyd
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Study nature, love nature, stay close to nature and it will never fail you.

Light should inspire you, and what’s more, vitalise you.

– Frank Lloyd Wright


Panoramic window


Frameless sliding door


Clara rethinks
window design

Architects and builders wish to have modern windows that are large and transparent. They should let as much natural light into the room as possible, minimise heat loss in winter, be soundproofed and, extending beyond that, make life very difficult for burglars.

Thanks to the evolution in window technology, thermal insulation, energy efficiency and sound insulation have long become standard features. Frost patterns and draughty windows are now fortunately a thing of the past. So far so good? That’s not good enough for us yet, so we deconstructed and re-designed the window at Clara.

Evolution is followed
by the revolution

How does every window become a panoramic window? How do we replace frames, mullions and sash bars that break up the view outside and reduce the incidence of light? How do we still manage to create a sturdy, airtight window with excellent rigidity?

The answer was as sophisticated as it was simple, and an absolute innovation: Clara is the world’s first frameless window with a casement made entirely of glass. The filigree, simple design perfectly complements contemporary architecture, fills rooms with more natural light and offers almost unlimited freedom of design. Clara, the window with a view. Made in Switzerland.

Get to know
Clara windows!

You want to replace your old windows or are looking for new windows for your home or your commercial property? Then you are best advised to arrange a non-binding appointment with us or one of our partners.

You will be delighted by the clarity, transparency, elegance and energy performance of the Clara windows, and that’s a promise.

Clara windows:
are 6 times more convincing

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The continuous glass surface of a Clara window allows the boundaries between inside and outside to merge.

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The unique conception of the windows with frameless casements allows up to 15 % more natural light to enter the room.

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Every Clara window is a unique item that adapts perfectly to people’s personal preferences in terms of interior design and architectural style.

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Clara windows are ideal for energy-oriented refurbishment, due to the fact they obviously meet the Minergie standard and passive house standard.

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Clara windows create cosy rooms with the maximum comfort factor, provide excellent sound insulation and are easy to clean.

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Clara windows are made of tempered glass and can be levered out only with difficulty thanks to the continuous glass surface and concealed fittings.

Discover our
latest news

équipes Alva et Clara Fenster

ELVA Group and AGC Glass – Partnership Agreement

AGC, the world’s leading manufacturer of flat glass, and the ELVA Group, a French manufacturer of high-performance multi-material windows, doors and bay windows, are combining their skills to develop “THE” window of tomorrow! Within the framework of this development, where creativity is in the spotlight, the ELVA Group will manufacture and market the “Clara by…

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partenariat agc riche

Partnership agreement : Menuiserie Riche / AGC Glass Europe

AGC, the world’s leading producer of flat glass and Menuiserie Riche, manufacturer of high quality exterior wood and wood-aluminum windows, doors, patio doors, sliding doors and bay windows, sign a partnership agreement. AGC is represented by AGC Glass Europe. As part of this agreement, Menuiserie Riche receives exclusivity in Belgium, Luxembourg and the North of…

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our videos


Are you looking for new windows, would you like to replace your old windows or are you planning the energy-oriented refurbishment of your building? In that case you should get to know Clara windows. The elegance of the windows with frameless casements made entirely of glass will delight you! Of course, all the Clara windows meet the Minergie Standard. We are happy to advise you and completely without any obligation for you in our showroom.

  • Switzerland & France : Duggingerstrasse 24, CH 4153 Reinach BL
  • Belgium : Industrielaan 1, BE – 8501 Heule (Kortrijk)

    Visit one of our 2 Clara by AGC Centers, or contact your local Clara partner to visit a showroom near you.

    Experience in our new showroom CLARA, the world’s first window with a frameless casement completely made of glass and manufactured in Switzerland. Its elegant and refined design gives you limitless creativity freedom. On this occasion, you may also like to take a look at our workshop.

    Whether you want a non-binding consultation or want to experience CLARA windows live, we are here for you!

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    Visit a showroom

    Would you like to see our different frameless glazing models and solutions?