No matter what type of weather the Kalamazoo area is dealing with, you can be confident that windows and doors from Pella of Kalamazoo can withstand it. Our products are crafted to be energy efficient. As a result, our ENERGY STAR®-certified windows and doors1 can help decrease your energy costs. This ENERGY STAR certification is thanks to our energy-efficient features like double- and triple-pane glass, Low-E coating and glass panes made to perform in specific climates across North America. Find out more about our energy-saving glass options and technology.