No matter what manner of weather the North Carolina area is experiencing, you can be sure that windows and doors from Pella of North Carolina can handle it. Our products are designed to be energy efficient. Because of that, our ENERGY STAR®-certified windows and doors1 can help decrease your energy costs. This ENERGY STAR certification is thanks to our energy-efficient products like double- and triple-pane glass, Low-E coating and glass panes built to stand strong in specific regions across North America. Learn more about our energy-saving glass options and technology.