Revisions log for Answer #1341

— White is the cheapest for plastic windows.

— Then, depending on the manufacturer, there are so-called "standard" or "preferred colors" that cost a little more than white. These are usually anthracite, brown, light gray, etc. Д.

— And only if there is nothing in these preferred colors, then you can go to a custom RAL special color and use whatever color you want. However, this, of course, is even more expensive. You may have to use that special color for the garage door and front door if everything has to be the same color.