Then you need to inform the managers about your plans — for what reason you wanted to buy a new -sample window, tell him about your ideas and prices that you would like to achieve as a result of the replacement of windows, and then voice the approximate size. Only in this situation, having received all the necessary data, the competent manager will be able to accurately calculate and bring your ideas to life, will give you recommendations regarding materials that can be used during the manufacture of your windows. For example, if you want to pay great attention to the sound permeability of the structure, when a lively road is located near your house, in which case a competent manager will recommend that you install a two -chamber double -glazed window. If you leave the manager in ignorance regarding your plans to replace the windows, then he will have to count on the most economical option for you.