An egress window in a basement dramatically brightens an otherwise dark, dingy room, but it also has a more serious purpose. It’s large enough to offer a safe exit from the basement in the event of a fire or other emergency. Installing an egress window where there is currently a small window is the most economical option. That said, an existing window opening can be enlarged or a new opening created to accommodate a new egress window. If a window does not exist then the professional will need to cut through your home’s foundation wall. That newly cut opening will be placed appropriately to maintain your foundation’s structural integrity.