Insert or full-frame?
Insert windows fit inside your existing frame and are the fastest option when the frames are sound. Full-frame replacement removes everything down to the rough opening, which is the right choice when there's rot or when siding is being replaced anyway.
Best time to do windows
If siding is on your list, do windows at the same time. The windows can be flashed properly into the new house wrap, which is the best long-term protection against leaks.
Typical cost
Most replacement windows run $800 to $1,800 per window installed, depending on size, style, and whether it's insert or full-frame.
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Questions about replacement windows
Do you install bay and bow windows?
Yes, along with sliders, casements, double-hungs, and basement windows.