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New offering combines superior durability, energy efficiency, and modern design to withstand challenging climates
FULTON, Md., 10/6/2026 – Window Nation, America’s largest residential window and door-only dealer, today announced the launch of its new fiberglass window for homeowners in the Denver and Seattle areas. Designed to deliver exceptional performance while maximizing energy efficiency and natural light, EliteShield™ windows offer a premium solution for homeowners seeking both durability and modern aesthetics.
Featuring frames made with 100% fiberglass, the EliteShield™ collection is engineered to withstand challenging weather conditions while maintaining its beauty and performance for up to 50 years. The new product line expands Window Nation's portfolio of premium replacement window options, complementing the company's existing vinyl window offerings.
“EliteShield™ fiberglass windows were specifically developed to withstand the high humidity, extensive wet periods, and drastic temperature changes many of our homeowners experience,” said Window Nation COO Don Wharton. “We’re excited to offer customers another top-tier window option to support their unique needs and deliver benefits for years to come.”
Unlike other window frame materials, fiberglass is made from a combination of glass fibers and resin, creating outstanding stability. Because fiberglass expands and contracts at nearly the same rate as insulated glass within the window, EliteShield™ windows help reduce the likelihood of gaps forming between the frame and glass during seasonal temperature fluctuations or extreme weather events. This can help improve long-term performance and reduce opportunities for moisture infiltration.
In the Pacific Northwest, EliteShield™ windows are designed to resist warping, rotting, and cracking while standing up to prolonged wet weather and seasonal moisture. In Colorado, the windows are built to withstand the rapid and dramatic temperature swings that homeowners experience throughout the year.
Thanks to fiberglass' superior strength, frames can be manufactured with significantly slimmer profiles. The result is up to 20% more visible glass, allowing homeowners to enjoy more natural light and brighter interiors.
While both vinyl and fiberglass windows can help prevent drafts and leaks, fiberglass windows also typically achieve higher energy-efficiency ratings, helping homeowners maintain comfortable indoor temperatures and lower utility costs throughout the year.
“Every homeowner has different priorities, and our new fiberglass offering is another way we can help homeowners find the perfect window option for their home, climate, and budget," said Wharton.
The EliteShield™ fiberglass window collection is now available for homeowners throughout the Denver and Seattle areas, with plans to expand the offering to other Window Nation locations in the future. For more information, visit windownation.com.
About Window Nation
Window Nation is the largest residential window and door-only dealer in the United States, committed to delivering unmatched expertise and exceptional products to homeowners across the nation. With over 3,000,000 windows installed, 45,000+ glowing reviews, an A+ BBB Rating, and a focus on innovation, sustainability, and customer satisfaction, Window Nation continues to set the industry standard for excellence. To learn more, visit www.windownation.com.