Vynex Window Systems Inc. is the first manufacturer of the first all vinyl tubular window. We manufacture quality vinyl & wood windows and doors Vynex Window Systems Inc. is the first manufacturer of the first all vinyl tubular window. We manufacture quality vinyl & wood windows and doors Vynex Window Sytems Inc. has been a Pittsburgh-based Window manufacturer since 1975. We offer vinyl & wood replacement windows and doors that are designed and custom-made to fit the quality and character of your home. Vynex Window Systems, Inc. manufactures heavy-duty, multi-chambered, extruded, vinyl windows. Our vinyl windows offer maximum thermal efficiency and provides year-round comfort. At Vynex, we guarantee satisfaction and quality not by standing on our windows or any other gimmick, but by including a lifetime guarantee on all of our vinyl and window parts. Through our years of production, we have become specialists on the repair side of windows as well. We fix ALL makes and models of windows, no matter how old. We are committed to pleasing you - the customer.