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 getting the benefits of a company with a commitment to protecting the environment. All Pella products meet or exceed ENERGY STAR® certification in all states, making your home both comfortable and efficient. Many Pella products also include allergen reduction technology to provide protection from dust, pet dander and other allergens. As a result, you will enjoy healthier air for your family to breath. Pella products: superior energy efficiency Pella products: superior energy efficiency Pella has been around for more than 80 years, and we’ve always been committed to the environment. Every Pella product is ENERGY STAR® certified in the U.S., and we continuously work to provide the most efficient glass options to help you save on your energy bills. More about Energy Efficiency Innovation to reduce allergens in your home Innovation to reduce 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 numerous Pella windows and even some of our doors. View this page to learn just how much cleaner your air could be with Pella. More about Allergen Reduction Schedule Now!