Lift-and-slide frames offer all the advantages of traditional casement windows in terms of thermal insulation, soundproofing, and security. Like casement systems, they use rubber gaskets for sealing and are equipped with multi-point perimeter locking mechanisms that are certified for burglary resistance. They also feature a tilt function.
The key difference lies in their operation: instead of opening inward like casement windows, lift-and-slide systems glide sideways—similar to parallel sliding systems.
In summary, lift-and-slide windows and doors combine top-tier thermal and acoustic insulation with certified security and excellent functionality. They are ideal for large openings such as windows or balcony doors, ranging from 1.6 to 3.5 meters wide.
The main advantage of sliding balcony doors—especially when used for large openings—is that they can be built in substantial dimensions with a minimal number of sashes. These sashes slide alongside each other (typically in two-panel configurations), allowing for larger glass surfaces and fewer visible frames. The result is a more expansive view and a clean, minimal aesthetic.
Sliding frames offer the advantage that the sashes do not open inward like traditional casement windows, but instead slide one in front of the other. This makes them a practical choice in spaces where interior clearance is limited—such as kitchens or very small rooms.
However, when it comes to insulation performance, both thermal and acoustic, sliding windows typically offer only moderate results. This is mainly due to the fact that their sealing is done using brush gaskets, which are less effective and allow for some energy loss.
In terms of security, they provide only basic protection. This is because their locking mechanism is not perimeter-based but operates on a single side, offering limited resistance against forced entry.
Folding balcony doors are the only window and door systems that allow the entire width of the opening to be fully opened. This creates a seamless connection between the interior of the home and the garden or balcony, offering a truly unique living experience.
In addition to their elegant design, they provide excellent thermal and acoustic insulation. Depending on the width of the opening, they can be built with 3 to 7 sashes, which fold neatly to one side when opened.
The robust construction of these thermally broken PVC profiles—ranging from 70 to 85 mm in width—combined with energy-efficient double or triple glazing, ensures exceptionally high levels of thermal and acoustic insulation.
Since thermal insulation is one of the most important features of a window, your new windows can easily be fitted with a variety of glazing options.
You can also enhance them with additional noise protection or select from various types of safety glass. A wide range of decorative glass designs is also available to suit your style.
All these options allow our windows to be fully tailored to meet every need.
The CLASSIC series, with its clean, straight profile lines, guarantees timeless elegance.
In addition, the new ROUND LINE series was created for those seeking greater creative flexibility in their window design. This Aluplast line features a soft appearance and gentle curves. Thanks to its rounded contours, the windows look especially attractive and blend perfectly with the character of modern interiors.
Aluplast uPVC windows come with RC1-level burglary protection as standard. For enhanced security, you also have the option to upgrade to the reinforced Multi-Matic RC2 system, offering a higher level of protection against break-ins.
Glass beads divide the sashes of doors and windows into smaller sections. In essence, they segment the glass, enhancing its visual appeal while also increasing the overall rigidity of the structure.