From their website: Simonton Windows® is one of the nation’s foremost vinyl window and door manufacturers. For more than 60 years, Simonton has led the industry with innovative products designed to make homes more comfortable, energy-efficient and beautiful. We’ve always believed that great windows and doors start with great people, and a great company. Since 1946, we’ve built our reputation one window and door at a time by offering the type of care and commitment every home deserves. Without question, every Simonton window and door represents the highest standards in the industry. When you choose Simonton, you choose a company that understands your needs, and is committed to exceeding your expectations. That’s because we make more than windows and doors. We make lasting impressions®. On your home. On your family. On your life.