The quality of Pella® - The features you want When you purchase Pella® products, you’re not only receiving their coveted quality and durability, you’re gaining the benefits of a company dedicated to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your room both comfortable and efficient. Numerous Pella products also include allergen reduction technology to provide protection from dust, pet dander and other allergens. In turn, you will enjoy healthier air for your family to breath. Our commitment to energy efficiency Our commitment to energy efficiency Our commitment to the environment has been around just about as long as our business. All Pella windows and doors are ENERGY STAR® certified in the U.S., and we continuously are working to develop the most efficient glass options to help save energy and save you money on your energy bills. More about Energy Efficiency Reducing allergens in your home Reducing allergens in your home Our between-the-glass window fashions can greatly cut down the allergens in your home. This one-of-a-kind technology is available on lots of Pella windows and even some of our doors. Explore this page to find out the benefits of Pella’s allergen reduction technology. More about Allergen Reduction Schedule Now!