Windows & Doors World
Leading Manufacturer

EU & US Tested and Certified
Top Benefit-to-Cost Ratio

50 years
of tradition

Bertrand have been building
up their brand since 1969.
In that time we have quenched the dreams of our numerous customers in Poland, Europe and worldwide. Bertrand is a renowned manufacturer of windows, doors and curtain walls.

We are very proud to have earned the respect of investors in a variety of sectors: residential, commercial, historical restoration, and even the most demanding field of passive and energy efficient architecture

Ideas & Inspirations

Our products are characterized by the highest quality, confirmed by certificates.
The company uses modern technologies for the production of woodwork and uses a wide range of materials: various types of wood, PVC and aluminum profile systems, as well as wood-aluminum and PVC-aluminum materials.

Bertrand E-catalog

See where and when you want only
We invite you to browse and download our e-catalog. It allows you to familiarize yourself with our offer. You can check the offers of our current products, compare the colors of veneers and match the perfect material.

After hours

Here you will find various interesting information. Learn more about our products, technology and other curiosities from the world of windows and doors.