Our fiberglass windows and doors go a long way and so does our customer service. Fibertec's homeowner's lifetime warranty for our fiberglass windows and doors assures that behind our reputation, lies high performance fiberglass windows and doors with unbeatable quality. We have a list of frequently asked question to answer any common questions, a glossary for terms that may be unfamiliar, a general guide to care for your fiberglass windows and doors, along with tips on how to install your windows on your own. Please navigate to one of the sidebar categories on the left to find the information you are looking for. If you have specific questions about your purchased windows and or doors, feel free to call us on our toll free line at 1-888-232-4956. You can also fill out a form for a service inquiry on your products by clicking here.