hidden beauty

Unique spaces impossible to experience before now

INVISIO-S is a high-tech sliding window that guarantees maximum transparency and visibility. BEAUTY WITHOUT BARRIERS.
The INVISIO-S sliding window has a concealed leaf, concealed sill and a central footprint of only 30mm. It offers extraordinary transparency and luminosity as well as exclusive panoramic views that you can enjoy from the comfort of your home.
The sliding system with discreet hardware leaves more space for large windows, contributing to the creation of a space where luminosity and transparency are the key features. The clean, elegant lines are perfectly in tune with modern tastes, which favour luminosity and subtle elegance.


Estimate Request

Contact us to receive a custom offer without any further obligation on your part. Our sales department will contact you and submit the best offer for your home or office.

Thanks to the concealed leaf, you can make maximum use of the spaces in your home without having to worry about the space needed to open the window. It is perfect for windows that lead on to external areas, such as gardens or terraces, making it possible to fully enjoy the access to and the view of these areas.


INVISIO-S makes a real difference thanks to its concealed leaf, floor-flush sill and central footprint of only 30mm, while its modern frame makes it possible to enjoy maximum luminosity. Available in a wide range of RAL colours, wood finishes and oxidised effects, it can be easily adapted to suit any interior design style.

INVISIO-Sinfisso tradizionale


Concealed Sill

The sill remains invisible thanks to the floor-flush solution, eliminating all architectural barriers and allowing maximum access to the space.

Integrated Handle

The handle is integrated into the window and the aluminium section is used as a handgrip.
The INVISIO-S design makes it possible to eliminate traditional closing and sliding accessories by integrating them into the profiles so as to ensure no accessories are visible while also ensuring maximum functionality and security.

Large size windows

The stainless-steel carriages with a 500kg capacity make it possible to install impressively large windows of up to 4m in height.

Solutions and
Technical Details

INVISIO-S is a high-tech sliding window that guarantees maximum transparency and visibility.



The thermal break in the window ensures excellent thermal insulation making it the perfect solution for improving the quality of indoor living and to protect against extreme temperatures in summer and winter.


Thermal insulation


Acoustic insulation


Water tightness




The quality of a window is the result of several factors, not least of which is the fitting and installation, which must be performed by qualified, skilled professionals.


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    ALsistem is present throughout Italy and has a comprehensive network of authorised retail partners specialised in the design, manufacture, sale and installation of ALsistem windows.