Yes, they definitely will. Windows can also undervalue a house. Let’s say you live in a nice middle-class neighborhood in Southern California. If you install any window, and it’s not equal to the neighborhood that you live in, you risk devaluing it. If you’re getting vinyl windows, and it has energy-saving properties, it reduces the amount of power you’ll use inside the home, which means you’ll save more on energy bills, which increases the value of the home.