Blog
The Bertrand expert blog was created so that we can share with you our knowledge and many years of experience in the window industry. Articles containing professional advice from our experts appear regularly here. To learn more about what you should pay attention to when choosing doors or how to properly install windows, just follow the blog.
In our regular series #LudzieBertrand we would like to introduce you to Robert. He has been with us for some time, but recently in a new…
We are probably the first company in Poland to introduce wooden-aluminium windows to our offer. This product is becoming increasingly popular, and…
Bertrand returned to the company after a year. The employees welcomed him as "one of their own". He is coming back to us in a new role, but this...
Fogging of windows is a common phenomenon that we often observe, especially during transitional periods, such as autumn and winter. The main cause of evaporation…
Did you know that millions of birds die every year as a result of collisions with building windows? This problem is becoming more and more…
Summer is in full swing and that means more time spent outdoors, relaxing on the terrace or balcony. So that these…
We are happy to announce that the latest aluminum systems from Cortizo have been added to our offer. These innovative sliding windows and doors…
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…
Wooden windows can delight many people, but despite this, most customers do not decide to buy them. NO…
Real heroes don't wear capes. Although this is quite a cliché, it is so true in this case...