Simonton was founded in Pennsboro, West Virginia in 1946, when Fred and Sybil Simonton recognized the need for high-quality exterior aluminum products and founded Pen Vent Awning. Their son would later help take Simonton to the next level. In 1981, he convinced the rest of the family that in order to differentiate the company from its competitors, they would need to begin producing energy-efficient vinyl windows. As a result, Simonton Windows was born. Today, the Simonton portfolio of products includes 12 different window and patio door lines with varying structural and stylistic features, all of which can be ordered to meet ENERGY STAR® guidelines.