Fiberglass
Pella® Impervia®
Incredibly strong fiberglass.
- Duracast® - the strongest, most durable material available in windows.
- Excellent performance.
- The quality look of a painted wood window.
- Exceptional energy efficiency.
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Vinyl
Pella® 350 Series
Distinctive vinyl windows with superior performance.
- Exclusive SmoothSeam® welded corners are virtually invisible.
- Robust, detailed frame profile.
- Stronger and more durable than typical vinyl windows.
- 53% ‒ 83% more energy efficient with triple-pane glass than single-pane windows. 10
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Pella 250 Series®
Exceptional vinyl performance and style.
- Pella’s durable frame design that resists warping and twisting.
- Pella 250 Series products with triple-pane glass are 54% - 77% more energy-efficient than single-pane windows.
- More of our most popular design features and options.
- A higher quality look than ordinary vinyl.
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Encompass by Pella®
(ThermaStar by Pella®)
Competitively priced, easy-care vinyl.
- Quality craftsmanship backed by Pella.
- Styles and options to fit most any budget.
- Low-maintenance vinyl frames. No more painting!
- Exceptional energy efficiency.
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