Over the past few years, the staff at the Chicago Window Company has given out more than 9,500 rough estimates in Illinois helping more than 3,400 homeowners determine if it is time for a new IGU unit. Keep in mind that there is a big difference between hiring a local company to replace the glass and replacing the whole window. Typically, the latter would cost significantly more, especially if you are replacing windows in a building. Your main concern is the condition of the windows and the cost to repair or replace the bad hardware on your current sash. No matter what you’re dealing with – flood, wind, hail or even normal wear and tear – we can get your windows fixed. This includes both garage and exterior windows and doors.