How to Replace an Old Window
In this video Mark Donovan of https://homeadditionplus.com shows how to replace an old window. In the video, he specifically shows you how to remove an old window as well as how to install a new window.
To replace a window, however, it first starts by figuring out what you need for a replacement window. Then, the work actually begins, starting with removing the old window, and then installing the new window.