
What sets our frameless windows apart
- Consistently frameless: Frameless does not always mean frameless – even if it is only a narrow aluminium rail. Our FixFrame is consistently frameless on the inside and outside – on all four sides.
- Impressive dimensions: our frameless windows can be up to 4.5 metres high. Design entire walls of your house or even the façade in glass. Any number of fixed glazing units can be connected together in width.
- Flush integration: Other elements from the ONE and Platin product families, such as windows, patio doors and sliding doors, can be integrated flush with the exterior of these frameless fixed glazing systems.
- We set standards: FixFrame, the frameless fixed glazing, was introduced in 2004 and is one of the earliest consistently frameless window systems. It has been continuously developed since then.
Discover our frameless windows
What are frameless windows?
![[Translate to Englisch:] FixFrame rahmenlose Fenster rahmenlose Verglasung Josko Fenster und Tueren Schiebetuer](https://res.cloudinary.com/josko/image/fetch/s--vBzu3zPC--/c_crop,w_2000,h_1125,x_0,y_104/c_fit,w_552/f_auto/https://www.josko.com/fileadmin/LP/Josko-rahmenlose-Fenster-FixFrameErklaerung-Definition-Fenster-ohne-Rahmen.jpg)
What are frameless windows?
Frameless windows are fixed glazing. Where a window frame would normally be visible, there is none. Just a continuous glass surface across the entire window.
This is made possible by a sophisticated, patented system that we developed ourselves. We call it FixFrame. It is so unique that we have been awarded the Red Dot Design Award for it.

Frameless windows fundamentally change the atmosphere of a home by seamlessly connecting indoor and outdoor spaces. They make rooms appear more spacious, open and light-flooded, as there are no visible frames to limit the amount of daylight entering the room. This creates an almost limitless connection to the surroundings, directing the view unobstructed to the outside and visually expanding the living space. Especially in modern architecture, they emphasise a clear, minimalist aesthetic and lend the home a timeless elegance.
At the same time, they create an immediate proximity to nature by making the outdoor area appear like an extension of the living space. This open design not only creates a harmonious sense of space, but also increases well-being, as bright, light-flooded rooms have a positive effect on mood. Whether as floor-to-ceiling glazing or as panoramic windows with flowing transitions, frameless windows create a unique quality of living that radiates openness, spaciousness and lightness.
How much do frameless windows cost?
Yes, frameless windows are more expensive than those with frames. This is mainly due to the higher installation costs.
Of course, it is tempting to save money. However, when you consider that heavy glass surfaces have to insulate and remain airtight for decades without any problems and, in combination with opening elements such as windows and doors, have to function smoothly tens of thousands of times, the low price quickly becomes relative.
Therefore, only trust manufacturers who not only offer competitive prices, but also have experience in technology, service and safety.


Smart Mix – Combine in a cost-optimised way
With our Smart Mix, you can design your home exactly to your taste while making the most of your budget. You choose the style for windows, doors, sun protection and accessories, and we make sure that everything fits together harmoniously – from colours and surfaces to the overall look. The result is a harmonious living environment that meets your individual requirements.
FAQs about frameless windows
Frameless windows are fixed glazing. Where a window frame would normally be visible, there is none. Just a continuous glass surface across the entire window.
This works thanks to a sophisticated, patented system that we developed ourselves. We call it FixFrame. It is so unique that we have been awarded the Red Dot Design Award for it.
If you look closely, you will quickly see that the term ‘frameless’ does not always mean truly frameless when used by other window manufacturers.
Sometimes elements are only frameless on three sides, sometimes a narrow aluminium frame is visible, and sometimes important additional features such as drainage, openable elements or sun protection are not included.
With FixFrame, we guarantee you a completely frameless overall system – mature and well thought-out for almost 20 years. Our frameless fixed glazing is completely frameless on all four sides.
Yes, frameless windows are more expensive than those with frames. Of course, the temptation to save money is great.
However, when you consider that heavy glass surfaces have to insulate and seal effectively for decades and, in combination with opening elements such as windows and doors, have to function smoothly tens of thousands of times, the low price quickly becomes relative.
Therefore, only trust manufacturers who not only offer competitive prices, but also have experience in technology, service and safety.
The system frame for our fixed glazing is installed during the shell construction phase. Once the interior plastering work has been completed, the large, heavy glass panes are installed – complete with all the necessary details such as drainage, sealing and much more.
Up to 4.5 metres in height – the only limitations arise because they are more difficult to transport. In terms of width, you can line up as many frameless fixed parts as you like.



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![[Translate to Englisch:] Kombination von rahmenlosen Fenster mit Hebeschiebetuer von Josko](https://res.cloudinary.com/josko/image/fetch/s--yjf6hqaQ--/c_crop,w_3179,h_3835,x_691,y_-3/c_fit,w_432/f_auto/https://www.josko.com/fileadmin/user_upload/SEO/Rahmenlose_FE/Hebeschiebetuer-mit-rahmenlosem-Fenster-Fixteil-FixFrame-Josko-Fenster-und-Tueren-schwebende-Stiege-Sichtbeton-grosse-Fenster.jpg)
![[Translate to Englisch:] Kombination von rahmenlosen Fenster mit Hebeschiebetuer von Josko](https://res.cloudinary.com/josko/image/fetch/s--AKqWAxEU--/c_crop,w_3460,h_3840,x_1146,y_-5/c_fit,w_396/f_auto/https://www.josko.com/fileadmin/user_upload/SEO/Rahmenlose_FE/Hebeschiebetuer-mit-rahmenlosem-Fenster-Fixteil-FixFrame-Josko-Fenster-und-Tueren-schwebende-Stiege-Sichtbeton-grosse-Fenster.jpg)
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