The name of the window company should be stamped on the window somewhere. On mine, it’s on the locks. That company should be the one you call directly or internet search for warranty information. They have local (could be in Orlando) distributors who will honor warranty and it may or may not be Romac. Most warranties I have seen only cover the window pane so they will ship the pane to the distributor who can install it at their labor cost since labor is not covered under most warranties. I replaced many panes myself on my old home in this manner (Simonton brand) because they were tape glazed and they had how to videos, etc and would send me the tape glaze roll with the pane.
Also, recent discussion on same topic:
Window replacement