No matter what type of weather the Boston area is dealing with, you can be sure that windows and doors from Pella of Boston can deal with it. Our products are built to be energy efficient. As a result, our ENERGY STAR®-certified windows and doors1 can help reduce your energy costs. This ENERGY STAR certification is due to our energy-efficient products like double- and triple-pane glass, Low-E coating and glass panes made to stand strong in specific climates across North America. Learn more about our energy-saving glass options and technology.