Fiberglass Replacement Windows
Why choose fiberglass?
Fiberglass windows from Pella offer strength and durability with the ability to withstand extreme temperatures. Fiberglass is a low-maintenance material with a quality look. Choose your window style and enjoy the quality look and energy efficiency of fiberglass.
![Fiberglass Replacement Windows](https://images.contentstack.io/v3/assets/blt9493bf2faec6c052/blt0d6d66cdecbd1bb9/659c1cdff3d8773bd9f3f082/Impervia_650x470.jpg?width=650&height=470&format=jpg&quality=90)
![](https://images.contentstack.io/v3/assets/blt9493bf2faec6c052/blte2c53711f4d5d349/659c1ce0ba4e80542eb6cfca/Fiberglass_Window_364x600.jpg?width=364&height=600&format=jpg&quality=90)
Used in a range of commercial and industrial items, fiberglass is a naturally strong material, making it a great option for windows. In fact, Pella’s proprietary fiberglass material is the strongest material for windows.* In addition to its strength, fiberglass is long-lasting, low-maintenance, and resistant to the chipping, chalking, and fading. This window material doesn't expand or contract when the weather changes and acts as an insulator, giving you a long-term energy-efficient window frame.
Fiberglass windows are:
- Durability
- Maintenance-free
- Weather resistant
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Explore Your Options with an Expert
Expert craftsmanship takes expert product knowledge. A Pella windows and doors expert can help you pick out the window that fits your home — and your style. Find your local Pella representative to schedule a free in-home consultation, measurement, and estimate. Or visit your nearest showroom for a guided tour of your options. No pressure. No cost to you.