Diamond Sea Glaze has been a custom fabricator of windows, doors, hatches and specialty glass products for over 30 years. Our product innovations have been driven by our customers' unique needs in the marine and heavy equipment industries. Our core business is to design and manufacture closures and our focus is to service our customers’ needs with sound technical support and high quality products.

Since our inception in the 1970’s as "Diamond Glass and Aluminum Products” we have expanded our product range and capacity. Diamond moved into a new, purpose–built production facility in 1999. Since then, we started our own powder and wet paint facility (2003), a machine shop (2003) and a flat glass tempering line (2004).

In 2004, we added 35,000 ft² to bring us to 80,000ft² of manufacturing space. In 2010 we added a digital glass printing line to enhance the capabilities of our glass division. DSG now employs a broad range of expertise, in an end–to–end, quality controlled plant. With professional in–house design and engineering specialists and our own glass manufacturing operation, we are well equipped to meet growing market demands. Our products are sold throughout North America, South America, Asia, Europe and beyond.