We design, test and make slim aluminium doors, glass walls and windows: our own systems, from the first sketch to the last screw.
As beautiful as design furniture, tested to strict EN standards.
Our Modulusz 50 hinged doors, sliding doors, fixed glass walls and Twin frames carry CE marking. Almost all of our products have been sound-tested in an accredited laboratory, in sizes larger than the usual test door, because large doors are harder to keep quiet.
Our newest systems, pivot, bi-fold and Secreto, are next in line for testing.
Profiles, hinges, sliding mechanisms and pivots are developed in-house. Every door is drawn, cut, machined, assembled and checked by the same team, in Győr, between Vienna and Budapest. Our showroom is in Neusiedl am See.

Our own 3-axis sliding mechanism, pivot hardware and 3D hinges, developed with partners like Dr. Hahn.

Sliding loft door over 40 dB, hinged doors around 39 dB at only 50 mm depth, Twin 61 at 45 dB and more.

Extruded from marine-grade aluminium with 50 % recycled content: the share at which quality and strength stay uncompromised.
A young company with a long view: more light, less noise and lower carbon in the buildings we work on.
XS-ALU is founded by Botond István Csősz, with an idea for slimmer aluminium systems, backed by three investors from the fenestration sector.
Two colleagues join, one of them dedicated to drafting and CAD drawings, and a fourth investor from the fenestration sector comes on board.
The first Modulusz systems go through testing, and our first warehouse opens in Nagykanizsa.
Three more people join, and the team grows to six.
We move to a larger warehouse in Csorna, closer to our main office.
Our own extrusion dies reach fifty, and with them the range and the team start to grow.
We buy our first CNC machines: Fenstek machining in our own workshop makes custom profiles and special projects possible.
We start bringing all our systems into LogiKal (Forterro), the software used by leading window and door makers.
Among the top 150 innovative brands of the MagyarBrands award. Radikal, our flush exterior system, was the development of the year.
We start producing our own plastic parts by injection moulding: hardware components, end caps and more.
Two colleagues join for pricing and quotations, and one for parts production and the warehouse.
We start developing new systems in the Modulusz and Radikal families.
Ten people now work at XS-ALU, from our bases in Sopron and Győr.
We presented Modulusz at one of the world's most important architecture fairs.
We order our next CNC machine and rolling machines for thermally insulated exterior profiles.
A new investor joins XS-ALU, and our headquarters moves to Győr, where office, production and warehouse now come together.
We start building our first showroom in Austria, in Neusiedl am See, between Vienna and Budapest.
We order a new 4-axis table CNC machine and start developing Secreto, our hidden door system.
We tested at a higher sound pressure than the industry standard, in larger than standard door sizes. Our Modulusz products reach 30 to 45 dB; a standard door typically offers 20 to 30 dB.
Hinged doors, sliding doors and glass partitions were tested by a third-party NAH and CERTOP accredited laboratory. Special 3D movement mechanisms and silicone seals make the difference.
Powder coating follows Qualicoat: firm adhesion, corrosion and UV resistance, and uniform colour along the whole profile.
Every system is developed in-house and fully compatible with renowned German hardware, for durability, safety and a beautiful finish.
All XS-ALU systems are available in LogiKal by Orgadata (Forterro), from the first sketch to the production list.
Create every element reliably, with constant checks that everything fits.
Answer enquiries and tenders faster, with full flexibility.
Review orders with your clients and keep several planning versions.
LogiKal CAD creates the drawings for each element quickly.
Order exactly the profiles, gaskets and hardware you need.
Start production with a single click.
Our office and showroom serve clients across Europe and overseas. Projects have been completed in many countries, with local partners for sales and installation wherever our clients are.
Send us your sizes, a sketch or a photo of the space. We reply personally, with a proposal made for your project.
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