There are a few things to keep in mind before replacing your windows. First, you'll need to decide what type of window you want. There are many different types of windows available on the market, so it's vital to do your research and find the one that best suits your needs.
The most important question you'll want to decide on is whether you're going for a pocket replacement or a full-frame window replacement.
Full frame window replacements are when the entire window, including the frame, is replaced. Pocket window replacements are when only the glass panes are replaced, and the frame is left intact.