The first step to economy of means - to find an optimum configuration of deaf and mobile parts of your windows.
Further many simplify a task. Having chosen some one combination of a profile for a frame of a window and, actually, the double-glazed window - is ordered by all windows of the same type. And sellers to it urge on: "You have identical windows all will be?".
And whether they are necessary identical? On a loggia with a big area of a glazing it is more reasonable to put double-glazed windows with the improved heat-shielding whereas in kitchen the high heat-shielding to anything - is better to put the window capable to be slightly opened as entirely, and having formed a small crack. In a drawing room you, for example, will want to put usual, and in a bedroom - noise-insulating steklopaketny windows. At the same time owners of cottages can have in general special requirements - that glass of a window was armor a film that had burglar retardant fastening and locks that had the required invoice of external finishing of a frame. Also you should not forget about mosquito grids. They, certainly, will be necessary for you in the summer, and their cost is so insignificant that it is more favorable and simpler to establish them at once! Mosquito grids will cost to you much more dearer if you forget to order them together with windows, both on production, and on delivery.