No matter what kind of weather the South Portland area is experiencing, you can be confident that windows and doors from Pella of South Portland can deal with it. Our products are designed to be energy efficient. In fact, our ENERGY STAR®-certified windows and doors1 can help reduce your energy costs. This ENERGY STAR certification is a result of our energy-efficient features like double- and triple-pane glass, Low-E coating and glass panes designed to perform in specific weather areas across North America. Find out more about our energy-saving glass options and technology.