A versatile system for constructing windows, balcony doors, or entrance doors, that stands out not only for its excellent technical parameters but also for its unique, minimalist design. This description applies to Linear, a PVC solution that addresses the needs of contemporary trends.


The advantages of this solution, in addition to its unique design that we will revisit shortly, include excellent thermal insulation (Uw from 0.73 W/(m²K)), achieved in part through the use of three sealing points between the sash and the frame, as well as its statics. Furthermore, Linear achieves the highest thermal parameters among systems with a depth of 74 mm.



The style is based on simple yet distinctive contours, low profile stacking of profiles up to a height of 110 mm, a 4-degree angle of overlap, and the option to choose from a wide range of matching glazing beads.


– Thanks to the system of rectangular beads, we achieve a geometric shape both on the outside and inside of the window – emphasizes Tomasz Budnik, main technologist in Bertrand company. – This is a novelty since the introduction of the Linear system. Previously, there was no solution that provided such possibilities.



Linear also stands out for its compatibility with other solutions offered by the Bertrand company, allowing for greater flexibility in adapting them to individual needs.


Would you like to learn more about this and other solutions? Feel free to contact our sales representatives. Details here.