Radikal 74 – Outdoor window and door system

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.

The Radikal system is currently under development, but you can pre-order it now for 2026 projects! If you like minimalist, innovative design, are about to renovate or build and could imagine Radikal in your home, ask for our discounted offer.

Construction types: fixed, tilt and turn, single or double leaf, parallel sliding

Glass: 2 or 3 layers
Hinges: stainless steel hidden hinges – 90/180 degrees
opening option
Framing: hinged or click connect
Frame size: W 49*74 mm
Frame + bottom frame size: W 96*74 mm
Double door frame size: W 119*74 mm
Max. door and window sash weight with concealed hardware: 180 kg
Seals: silicone and rubber
Operation: manual or automatic
Sound insulation: approx. 48 dB (under test)
Thermal insulation: Uf 1.63 W/m2K, Uw 0.85 W/m2K

Radikal 170 – A new dimension of space and light

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.

The Radikal sliding door is currently under development, but you can pre-order it now for 2026 projects! If you like minimalist, innovative design, are about to renovate or build and could imagine Radikal sliding doors in your home, ask for our discount offer. Be part of our revolutionary innovation!

Design: push-fix, push-push, push 3 or push 4.

Glazing: 3-TGU
Rollers: stainless steel, hidden
Framing: click connect
Frame size: W170*50 mm, built-in
Frame + bottom sash size: W170*87 mm
Centre leaf connection size: W153*38 mm
Max. door, window sash weight with concealed hardware: 1000 Kg
Gaskets: brushes and rubber
Operation: manual or automatic
Sound insulation: approx. 48 dB (under test)
Thermal insulation: Uf 1.73 W/m2K, Uw 0.8 W/m2K

Radikal Pivot – entrance door system

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 350 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 350 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.

The Radikal system is currently under development, but you can pre-order it now for 2026 projects! If you like minimalist, innovative design, are about to renovate or build and could imagine Radikal in your home, ask for our discounted offer.

Glazing: 2 or 3 layers
Paneling: special panels, ceramic, stone, steel, etc.
Hinges: stainless steel pivot hinges
Framing: hinged or click connect
Frame size: W120*76 mm
Max. Max. door leaf weight: 350 kg
Gaskets: silicone and rubber
Operation: manual or automatic
Sound insulation: approx. 35-45 dB (under test)
Thermal insulation: Uf 1.63 W/m2K, Uw 0.8 W/m2K

Solarisz 20e – sliding exterior door

Sliding door system for a 3-season glass terrace. Our product is a bottom-supported sliding glass wall system that provides complete transparency, meaning that there are no profiles between the glass walls. Similarly to our other products, our load-bearing profiles also follow a modern, narrow design. The advantage of a 3-season, semi-open glass patio system is that overheating will not be an issue, not even on warmer days. In addition, since the glass panels can be slid open almost entirely, the glazed terrace can be transformed into an open space that can be ventilated easily and effortlessly.

50% of all aluminium materials used during the production of this system are from recycled materials, which is a unique feature on the market. The sliding door rollers have a load capacity of 90kg each, allowing the use of glass sashes up to 2.8 m high. In terms of weather conditions, the system can withstand wind speeds of up to 180 km/h.

The design can be built up to 2, 3 or 4 tracks with single profiling or up to 10 tracks with double profiling. It can be installed as a right or left-sliding version and can even be concealed in the wall. Co-extruded rubber seals ensure the smooth movement of the door leaves. The glass panels can be opened with recessed handles made of brushed stainless steel or aluminium in the colour of choice.

Glass: 8-12 mm tempered or laminated
Rail: marine grade aluminium
Design: 2, 3, 4 standard (but up to 10 tracks)
Lock: recessed handle, push rod
Framing: click connect, screwable
Frame size: 20 mm narrow and just under 70 mm high glass profiles, meet in 40 mm wide profiles
Gaskets: co-extruded rubber sponges
Operation: manual

XS-ALU Building Systems Kft.