Minimalist windows and doors, flush inside and out. Radikal is our own development; Slim Line 38 and MasterPatio are from Reynaers.
Less frame, more view. Engineered for wind, water and silence.
Radikal 74 brings the flush, minimal look of our interior doors outside: triple continuous sealing, barrier-free low thresholds and hidden stainless-steel hardware, in marine-grade aluminium with 50 % recycled content.
For panoramic lift-and-slide doors and insulated windows in classic, cubic or steel-look styles, we supply Slim Line 38 and MasterPatio from Reynaers.





Radikal 74Eco-friendly
For exteriors
Hinged system
Max. leaf150 kg
Marine-grade alloy
Click-connect
Weldable
Soundproofing40–48 dB
The flush-closing design and hidden hardware make it special and decorative. This is an innovative development, thanks to which the door or window frame and the sash are flush on the inside and outside. Its appearance is narrow and exclusive.
In addition, it has unique features such as triple continuous sealing, barrier-free low threshold, hidden yet heavy-duty stainless steel hardware, high thermal and acoustic insulation and up to 180-degree opening.
All our products are made from 50% recycled aluminium, making our doors and windows an environmentally conscious choice.
Slim Line 38 · ReynaersEco-friendly
For exteriors
Doors & windows
Max. leaf170 kg
Alloy 6061
Click-connect
PAS24 / RC2
Soundproofing35–45 dB
SlimLine 38’s sleek, user-friendly design makes it a highly insulated system, ideal for both contemporary and classic architectural projects. These narrow-profile aluminium windows and doors offer unlimited design freedom, thanks to their many minimalist variations.
Available in three versions:General information:This system is from Reynaers, not an XS-ALU development. We supply it for projects that need it alongside our own systems.
MasterPatio · ReynaersEco-friendly
For exteriors
Lift & slide
Max. leaf600 kg
Alloy 6061
Click-connect
PAS24 / RC2
Soundproofing35–44 dB
The MasterPatio aluminium sliding door system is the perfect choice for all our customers. With its excellent insulation and high-quality components, it is a truly premium sliding door solution for any style of construction project.
MasterPatio is a versatile lifting and sliding door solution.
MasterPatio is the most versatile lift-slide system to offer, the ideal combination of a clean look and high insulation performance. Although this sliding door system is not the narrowest, its appearance remains clean with fully concealed hardware and optional concealed motorisation, which can move sliding panels weighing up to 500 kg at the touch of a button.
In addition, sliding doors are not only easy to operate but also offer certified security with PAS 24 and RC2 compliant burglar resistance. The +High Insulation+ design even provides passive house-level thermal insulation.
General information:This system is from Reynaers, not an XS-ALU development. We supply it for projects that need it alongside our own systems.
Radikal 170 and Radikal Pivot are not yet on general release. Both are already prepared, with documentation, for selected projects. If you are planning one, talk to us early.
Radikal 170 · in developmentEco-friendly
For exteriors
Sliding system
Max. leaf1000 kg
Marine-grade alloy
Click-connect
Weldable
Soundproofing45–49 dB
Radikal is our newest minimalist sliding exterior door system. Invisible elegance, as the frame almost disappears, leaving only the view. The 38 mm visible ultra narrow aluminium frame provides maximum visibility while supporting glass sashes up to 1000 kg. The minimalist frame highlights the harmonious interplay of natural colours, making it the perfect addition to a modern home.
The system is characterized by extreme durability, as we used premium marine aluminium alloy with stainless steel reinforcements that can withstand industrial loads. The size is limited only by the triple-layer toughened safety glass, allowing it to meet the needs of virtually any space.
In development and not yet on general release. Already prepared, with documentation, for selected projects: ask us about yours.
Radikal Pivot · in developmentEco-friendly
For exteriors
Pivot system
Max. leaf500 kg
Marine-grade alloy
Click-connect
Weldable
Soundproofing35–45 dB
The front door, which not only locks, but opens up space.
Let’s dare to dream big! It is possible to create a monumental door up to 6 metres in length, up to 500 kg, which is beyond anything we have ever imagined. This is not just a door. It’s the face of the house, a work of art of undisputed prestige and taste that will be talked about for a long time to come.
Radikal is where power meets precision, because behind the striking beauty of every Radikal door lies a major innovation: our proprietary 3D adjustable hinge system and magnetic rubber seals. This technology ensures that even doors weighing up to 500 kg operate effortlessly, quietly and elegantly – even when fixed at different angles.
Choose the finish that suits your taste from anodised aluminium, natural stone, glossy or coloured glass, special ceramics, timeless stainless steel or warm wood veneer combined with copper.
The result? A completely unique, unparalleled entrance door.
All our products are made from 50% recycled aluminium, making our doors and windows an environmentally conscious choice.
In development and not yet on general release. Already prepared, with documentation, for selected projects: ask us about yours.
Tell us about the opening, the view and the climate. We help you choose the system and prepare details for your architect.
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