Established in 1991, Diamond Door & Architectural Metal specializes in producing exceptional tempered glass entrances found in buildings throughout the United States. While we primarily serve Texas and Oklahoma, our long-standing clients extend to California, New Jersey, New York, and Virginia.

With over 30 years of manufacturing experience at our inception, we have a rich history of innovation and advancements across multiple industries dating back to 1960. Our team brings extensive knowledge, experience and expertise in the manufacturing and installation process of tempered glass entrances. 

​​​​​​​We specialize in manufacturing tempered all glass doors used in commercial buildings, but offer several other services:

• Architectural break metal
• Wholesale door hinges, closures, handles, and manual and electronic locks
• Manufacturing of hard to find replacement parts
• Design consultation
• Custom waterjet