The quality of Pella® - The features you want When you install Pella® products, you’re not just receiving their coveted quality and durability, you’re receiving the benefits of a company committed to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all 50 states, making your space both comfortable and efficient. Various Pella products also include allergen reduction technology to protect you from dust, pet dander and other allergens. As a result, you will have healthier air for your family to breath. Pella’s dedication to energy efficiency Pella’s dedication to energy efficiency Pella has been around for more than 80 years, and we’ve always been committed to the environment. All Pella windows and doors are ENERGY STAR® certified in the U.S., and we continuously work to provide the most efficient glass options to help reduce your energy bills and consumption. 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. Our one-of-a-kind technology is available on many Pella windows and even some of our doors. Explore this page to find out how much Pella technology can affect your air quality. More about Allergen Reduction Schedule Now!