Keller minimal windows®

maximum view !

Transparency for innovative architecture

Modern, contemporary architecture is all about one thing – focussing on the essentials! Clear lines, balanced proportions and, above all, one element plays a very special role – light. Whether an exclusive villa, detached house, flat or business complex, open-plan living concepts and maximum daylight with uninterrupted views of the outdoors are at the top of the list of priorities for today’s building owners.

Frameless windows & bonding system

Brever ®- windows and more beautifies living spaces and blurs the boundaries between inside and outside. For over 15 years, we have been realising exclusive projects with minimalist, almost frameless fixed and sliding windows. Sophisticated design meets maximum functionality – without compromise. In the Luxembourg and Belgium region, we stand for quality, precision and personalised advice.

Since 2024, we have our own bonding station where XXL glass panes – whether straight or curved – weighing up to 1.5 tonnes per pane are precisely bonded to profile frames. Thanks to our high-quality standards and the expertise of our in-house technicians, we guarantee processing at the highest level. This enables us to realise customised solutions reliably and efficiently, even for the most demanding projects.

Maximum view

In this modern bungalow, floor-to-ceiling, minimalist frames merge seamlessly with the spacious terrace to form an elegant unit. The large glass fronts allow plenty of daylight into the interior, creating a bright, open feeling of space with a pleasant living climate. Thanks to precise profile bonding by Brever ®- windows and more, precisely fit XXL glass panes with maximum stability and aesthetics can be realised. The result is an architecturally sophisticated solution that perfectly combines design and function.

Advantages at a glance

Frameless look

The slim aluminium profiles ensure maximum transparency and allow the interior and exterior areas to merge visually.

High thermal insulation

Despite the minimalist design, the systems offer excellent insulation values and fulfil modern energy standards.

Customised production

Whether large glass surfaces, corner solutions or motorised sliding elements – the windows can be flexibly adapted to architectural requirements.

5 Questions & Answers

What means Keller minimal windows®?
Keller minimal windows® are high-quality, frameless sliding window systems with extremely slim profiles that stand for maximum transparency and a purist design – ideal for modern architecture.
The systems allow exceptionally large glass surfaces with unit sizes of up to 6 x 3.2 metres and a pane weight of up to 1,500 kg – with smooth operation at the same time.
Yes, thanks to triple glazing, thermal break and optional high-end insulation, the windows achieve excellent thermal insulation values and fulfil requirements for passive houses.
The sliding systems are burglar-resistant (e.g. RC2), have concealed locking mechanisms and can be fitted with safety glass – without compromising on design.
Yes, the windows can be optionally equipped with electric drives, smart home integration or sensor technology – for maximum convenience and modern building automation.

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We transform your ideas into works of art

Discover our spacious 1,000 m² showroom in the north of Luxembourg!
Experience a diverse selection of high-quality windows and doors – and that’s not all: we also present exclusive special products and our complete range of modern sun protection solutions.

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Contact us and let your visions come true

Or book your showroom appointment