No matter what manner of weather the Mt. Pleasant area is experiencing, you can be confident that windows and doors from Pella of Mt. Pleasant can handle it. Our products are designed 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 thanks to our energy-efficient products like double- and triple-pane glass, Low-E coating and glass panes designed to perform in specific weather areas across North America. Discover more about our energy-saving glass choices and technology.