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minimal windows®

Open living spaces for maximum natural light

Our minimal windows® double-glazed window system is an almost frameless, smooth-sliding aluminum sliding window system with a delicate sash profile of just 21 mm. Thanks to the large sliding sashes with a height of up to 4 meters and practically invisible frame profiles, you can fully enjoy an unobstructed view of the outdoors. Let yourself be enchanted by breathtaking panoramic views of the sea, dream under the sparkling night sky, or enjoy the beauty of natural landscapes and gardens.

In modern contemporary architecture, the use of minimalist materials is at the center to create a seamless transition between indoor and outdoor areas. Clear lines, balanced proportions, and above all, one element play an important role - natural light. Whether it's an exclusive villa, single-family house, apartment, or commercial space, open room design with an unobstructed view of the outdoors and maximum daylight is at the top of the priority list in architectural design today. Flush floor-to-ceiling glass fronts seamlessly blend into any environment.

Thanks to our over 15 years of meticulous adaptation work, we have perfected the technology of concealed floor track systems, making the sliding elements effortlessly easy to operate.

  • Technical Details

Security



Security

Our systems are equipped with multi-point locking, providing excellent burglary protection. They are certified according to standards for burglar-resistant components and meet resistance class RC 2. The minimal windows® sliding systems are custom-made and individually tailored to the preferences and installation requirements of our customers. Optional additional features include a linear drive, lock monitoring with magnetic contacts, or security sensors. To ensure maximum security, our products are also compatible with a wide range of security accessories.

Pocket Sliding Doors



Pocket Sliding Doors

Specially designed pocket sliding doors allow the minimal windows® sliding panels to fully disappear into the wall, making the automatically or manually operated sliding elements completely invisible and creating an even larger space. The barrier-free transition to the outside is also ensured.

Stainless Steel Track and Roller Guide



Stainless Steel Track and Roller Guide

Our stainless steel track, fully integrated into the bottom edge of the outer frame, ensures optimal sliding performance and silent operation of the transparent sliding panels. The system is completely maintenance-free. The roller guide resting on the track fits perfectly and is designed to match the track.


The self-centering integrated stainless steel roller guide is concealed and mounted in the lower profile of the sliding panels. With this special design, dust or dirt that could affect the sliding performance is kept away from the operating system as much as possible. The high-quality stainless steel rollers ensure high stability under load and effortless operation of the sliding panels weighing up to 500 kg.

Drainage



Drainage

For reliable drainage, a specially designed PVC hollow chamber profile is used. This drainage profile is installed below the lower aluminum frame profile.



Alternatively, a concealed drainage channel with a stainless steel cover is also available. Regardless of which minimal windows® system or combination of systems you have chosen, we customize the drainage system according to your needs to ensure reliable water drainage.

Flush Installation



Flush Installation

The outer frame can be fully integrated into walls, ceilings, and floors, creating a flush finish. In the open position, this creates a seamless transition between the interior and exterior areas without any thresholds. The integrated stainless steel track is installed flush into the floor, without any protruding elements. Another advantage is the maintenance-free nature of the system.

Threshold-Free Transition



Threshold-Free Transition

The flush-mounted minimal windows® freeway track provides a threshold-free passage to the outside, making it fully accessible. The outer frame is fully integrated into the floor, so the track is level with the floor, eliminating any obstacles to trip over. The freeway system is tested, certified, and maintenance-free.

Insect protection



Insect protection

For effortless, long-term protection against unwelcome guests, Keller minimal windows® offers integrated, tailor-made insect screens within the system. The insect screens are nearly invisible, ensuring minimal obstruction to the view. The color of the insect screens can be matched to the frame color. When not needed, the protective screens can be fully recessed laterally or upwards into a niche in the wall. The following systems are available :


  • Pleated insect screens : available for minimal windows® and minimal windows® 4+
  • Insect screen sliding door : available for minimal windows® and minimal windows® 4+
  • Roll-up insect screen : available for minimal windows® 4+ and minimal windows® NGS

Glass railing



Glass railing

For floor-to-ceiling window openings, fall protection is necessary. Strength, stability, and suitability of the material are crucial in designing railings. The minimal windows® guardline glass railings* combine outstanding quality and safety with elegant design. Thanks to modern techniques for seamless installation, the components seamlessly integrate into the respective architectural design.



*Country-specific regulations must be observed.

Motorization



Motorization

We offer the option to customize our systems with a range of concealed drive and locking systems, increasing ease of operation. The motorized sliding panels can be effortlessly controlled with a remote, and the control can be equipped with infrared sensors or a manual dead man's switch. With just a single drive, multiple sliding elements weighing up to 2,400 kg can move silently into the desired position. The automatic control via a telescopic rail allows for easy movement of large areas.

Downloads

As a registered user, you have access to your personal area in our minimal hub. There, you will find current news, exclusive live streams, work materials (such as specifications, BIM objects, CAD data, technical documentation), and direct contact to Keller.

Click here to access our minimal hub.

Your contact person

Keller Minimal Windows S.A.

Wim Robberechts

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I agree that Keller Minimal Windows S.A. stores my personal data provided in this inquiry for a duration of 6 months from the date of consent. I consent to Keller Minimal Windows S.A. using this data to contact me later. I can withdraw my consent at any time for the future by sending an email to contact@keller-minimal-windows.com or by sending a written request to the following address: Keller Minimal Windows S.A. – 38-40, route de Wilwerdange, 9911 Troisvierges, LUXEMBOURG.

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I agree that Keller Minimal Windows S.A. stores my personal data provided in this inquiry for a duration of 6 months from the date of consent. I consent to Keller Minimal Windows S.A. using this data to contact me later. I can withdraw my consent at any time for the future by sending an email to contact@keller-minimal-windows.com or by sending a written request to the following address: Keller Minimal Windows S.A. – 38-40, route de Wilwerdange, 9911 Troisvierges, LUXEMBOURG.