Doortech System Competitors

For more than 121 years, Andersen has designed, manufactured, and marketed premium windows and doors. We have a strong history of commitment to our employees, community, and environmental stewardship. As a privately held company headquartered in Bayport, Minnesota, Andersen employs more than 13,000 people in North America and Europe, all dedicated to upholding our commitment to excellence and reliability. You can trust Andersen to deliver exceptional quality and craftsmanship.

Allegion (NYSE: ALLE) is a global pioneer in seamless access, with leading brands like CISA®, Interflex®, LCN®, Schlage®, SimonsVoss® and Von Duprin®. Focusing on security around the door and adjacent areas, Allegion secures people and assets with a range of solutions for homes, businesses, schools and institutions.

Based in Cary, NC, Ply Gem is North America's leading manufacturer of exterior building materials, including windows, siding, stone, and 40 other categories. At Ply Gem, we provide the nation's residential builders, remodelers, and architects with access to a comprehensive range of building products. From new construction to repair, remodel and replacement, our full line of windows, doors, siding, stone veneer, and fencing products provide quality and value for all types of projects. At Ply Gem, we're all about you – finding out what you need; responding to your questions; helping get the job done right. After all, we don't succeed until you succeed. DISCLAIMER Ply Gem's social media channels share information about our company, our products and our people. We welcome commentary expressing all points of view – positive and negative – but reserve the right to remove posts that are off-topic, offensive, promotional or illegal or contain inappropriate language, hate speech, proprietary information, personal data or personal attacks.