A.S.
S.,
We just went through shopping for new windows. You do need to do a little research on what kind of window you want. (I am completely not an expert, but)Basically there is wood (the classic choice), vinyl (lower cost), and fiberglass, a newer choice. Not every company does every kind. We decided on fiberglass from Metropolitan Window ###-###-####). They are not in yet so I can't comment on that but so far so good with the company. If you want vinyl, Swingline by Legacy Remodeling might be a good choice. They have a bit of a hard sell (10% discount if you decide tonight!) but a good vinyl window.
Good luck.