Crafted by Pella, Certified by ENERGY STAR® ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy to help Americans shield the environment through energy efficient products and practices. Since ENERGY STAR focuses on conserving energy, you’ll likely also save on your energy expenses. All Pella windows and doors meet or exceed ENERGY STAR certification across the U.S. How does this impact you? Not only might you see decreased heating and cooling costs, you’ll also help protect the environment. Moreover, you’ll enhance your home’s comfort since our ENERGY STAR certified glass blocks a large percentage of the sun’s ultraviolet rays. That means almost no fading for your window coverings, carpet, furniture and walls. Look for the ENERGY STAR logo on our products as you browse through our site or Denver Showroom. The logo will be located on the product’s NFRC label. Some of our products significantly exceed U.S. ENERGY STAR guidelines. Contact your Denver Showroom to learn more. Schedule Now!