Pella’s fiberglass windows are made of the strongest, most durable material available in windows.17 Our patented, low-maintenance fiberglass is scratch-resistant and can withstand extreme heat and subzero cold temperatures, so you can trust our fiberglass windows to perform in your home.
Pella® Impervia® fiberglass windows offer superior strength and durability. Enjoy the enduring beauty of fiberglass awning, casement, sliding, single-hung and double-hung windows — backed by one of the strongest warranties in the business.
Superior strength and durability with patented fiberglass material
Withstands the most extreme temperatures
Long-lasting powder-coat finish, including Black
Sleek, timeless profiles
Meets the rigorous performance requirements of a commercial building
Optional foam insulation for better energy performance
Exceptional energy efficiency
Innovative locking system for improved security and a stronger seal
Patented unison locking system, with one easy-to-use lock-lever
INSIDE PELLA IMPERVIA
Made from our patented five-layer fiberglass material, Pella Impervia windows are on average 100x more impact-resistant than a leading wood/plastic composite product. Tested from -40ºF to 180ºF, these windows can withstand some of the harshest conditions, making them strong and incredibly energy efficient.
Very good experience with roof replacement. Comfortable to work with.
We are so pleased with Brandon and his crew. They are very respectful, courteous. and committed to doing an excellent job. I would recommend Core Exteriors with 100 percent confidence that they will do a great job.
Very easy to work with. Quality job Was done on time as promised. I would highly recommend!