Bertrand Windows and Doors

Revolutionary Windows
Master Quality

We specialize in window production, combining professionalism and modern technologies. We deliver the highest quality products. We focus on innovative solutions and precision of workmanship, guaranteeing our customers not only aesthetics, but also durability and functionality for years.

Manufacturer of windows and doors
A company with traditions

The BERTRAND company has been building its reputation continuously since 1969.
Since then, we have fulfilled the dreams of many clients in Poland, European countries and even in the USA, Australia and New Zealand.
BERTRAND is a respected manufacturer of windows, doors and facades.

We enjoy wide recognition among investors in individual, investment and historic construction, as well as in the most restrictive energy-saving and passive construction.

Years of experience
0 +
Completed projects
Satisfied customers

Bertrand is your unique choice!


Find the perfect solution for you: windows, terrace systems, doors, blinds and roller blinds, facades.
Check out our product categories.

Our projects

See our projects, each of them is unique and implemented with passion and heart!


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Window manufacturer

street Wejherowska 12

84-242 Luzino, Poland