A. Not necessarily. Windows in your garage door is a matter of preference. You may want to have windows if you are looking to benefit from natural light entering the room but you should also consider that some heat may be lost through the glass panels. On a sectional garage door, it is possible to personalise some of the sections with windows. However, on a roller door, it isn't feasible due to the way that it rolls up into a tube shape as it opens, so if you're looking to install a roller door in Hamilton then you will have to forgo the addition of windows.