Pella Impervia®
Incredibly strong fiberglass
- Duracast® ‒ the strongest, most durable material available in windows.
- Virtually impervious to all weather conditions.
- The quality look of a painted wood window.
- Exceptional energy efficiency.
Pella Single Hung Vinyl Windows
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.
- 54%-83% more energy efficient with triple-pane glass.2
Encompass 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.