Menu Home Ideas Windows Fiberglass Windows Fiberglass Windows Why Choose Fiberglass Windows? Trusted in tools, boats, bridges and more, fiberglass is a naturally strong and durable material, making it a superior choice for windows. Pella’s proprietary fiberglass material is the strongest material for windows, engineered for lasting durability.61 Our exclusive fiberglass will never rot or corrode, and it resists dents, bends and breaks. Fiberglass window benefits Durable and Strong The best fiberglass windows for your home are incredibly strong and durable. Resisting dents, bends and breaks, fiberglass window frames have virtually no expansion and contraction to help improve energy efficiency, reduce the risk for seal failure and provide long-term stability for dependable operation. Weather Resistant Maintenance-Free SHOP FIBERGLASS WINDOWS Pella's Fiberglass What makes Pella's fiberglass different from the competition. 1 The Strongest Material for Windows Pella's fiberglass is the strongest material for windows, engineered for lasting durability.61 Our fiberglass windows are designed and tested for a lifetime of everyday use. 2 Won't Dent, Bend or Break Our proprietary fiberglass won’t dent, bend or break as much as the competition. It is a thermoset material, meaning it won’t melt or breakdown when exposed to environmental temperature swings and can handle the most extreme heat and cold.71 3 Heavy-Duty, Powder-Coat Finish Factory-applied and baked on, our long-lasting powder-coat finish resists chipping, chalking and fading – even in dark colors – for enduring beauty. What to know more? Learn more about our proprietary fiberglass material and see how we stack up against the competition. PELLA VS COMPETITORS Fiberglass Windows Fiberglass Window Inspiration There are no results matching your criteria. Please try expanding your search. Fiberglass Window Projects Browse through our projects to view our windows used in real life and see the difference a new window can make on your home. Frequently Asked Questions SEE ALL FAQS Helpful Resources Visualize Your Dream Home See how new windows and doors can improve a home's curb appeal. Tips & Advice Explore our collection of tips and advice articles to learn about all things windows and doors. How to Buy There's always a convenient way to welcome Pella into your home. See Exterior Home Designs Before You Buy Bring your vision to life by seeing your windows and doors on your home before you buy. Limited lifetime warranty Pella products are backed by some of the strongest warranties in the business. LEARN MORE ABOUT PELLA'S WARRANTY JOIN OUR EMAIL LIST Subscribe for updates on Pella innovations, products and offers. Email Address Zip Code --- Please Select --- Replacement Contractor Remodeling Contractor Residential Builder/GC Commercial Builder/GC Architectural / Design Firm Commercial Building Owner Homeowner I am a SUBMIT Find a Showroom Stop by to see and touch a variety of energy-efficient windows and doors. Free Virtual or In-Home Consultation Find the right Pella windows and doors for your home. Get Support Let us help you find a solution to the problem you're having. PRODUCTS Windows Patio Doors Front Entry Doors Storm Doors Product Brochures INSPIRATION Pella DesignWorks Visualize Your Home Luxury Division WHY PELLA About Us The Pella Difference Careers Stories Energy Efficiency SUPPORT For Professionals Installation Instructions Warranties Owner's Manuals Support Center Contact Us Replacement Parts PROJECT CENTER Free Consultation Find a Contractor Find a Showroom Financing Promotions ALSO OF INTERESTImpervia® Fiberglass Patio DoorsImpervia® Fiberglass Windowswindow materials © 2021 PELLA CORPORATION, ALL RIGHTS RESERVED California Supply Chain Act Energy Methodology Privacy Policy Terms of Use Product Performance Website Accessibility Statement California Rights Policy California Collection Notice Do Not Sell My Information Facebook Twitter Instagram LinkedIn Pinterest Houzz YouTube Glassdoor