Bertrand Windows and Doors

French balconies

Balkoniki francuskie to wąskie balkony, które nie mają przestrzeni użytkowej na zewnątrz, lecz są raczej dekoracyjnym elementem fasady budynku. Są popularne zarówno w klasycznych, jak i nowoczesnych budynkach, dodając im charakteru i funkcjonalności.

A solution with safety and aesthetics in mind. A product with various glazing thicknesses that can be adapted to the needs of various structures.

Knowledge zone

Get to know us behind the scenes of our activities and stay up to date with the innovations we are preparing for you!


How to choose the right patio doors?

Summer is in full swing and that means more time spent outdoors, relaxing on the terrace or balcony. To these


Cortizo aluminum systems now available at Bertrand!

We are happy to announce that the latest aluminum systems from Cortizo have been added to our offer. These innovative sliding windows and doors


Does glass in windows matter? – Our guide to glass types

Choosing the right type of glass for windows is a key element affecting the comfort, safety and energy efficiency of the building. Additionally, the right selection