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Endorsement as Strong as our Industry

At Custom Glass Products, we recognize our opportunity and responsibility to enhance the beauty, performance, safety, and lasting value of every structure we grace. Accordingly, our own high standards are merely our starting point.

Our conscientious conformance to the standards established by the programs, organizations, and associations listed on this page, ensure that our products consistently provide the highest attainable performance and quality levels.

Certification programs verify that our product designs and implementations comply with government safety and durability requirements.

Compliance with standards and codes ensures smooth sailing for architects, contractors and owners regarding inspections, financing, resale, and related muntin considerations.

Trade associations advance building science through research and member education. We support these efforts at every opportunity.


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You’ll find several catalogs on our website where you might find exactly what you want or will get your imagination sparked, so you can create the wonderous result you want for your home or commercial property. When you want the perfect marriage of functionality and beauty, we are confident our Precision One-Piece Grids® windows will deliver. Contact us today to learn more about the many customization choices that are available to make your windows provide all the benefits you envision.


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  • Custom Glass Products sells exclusively to Millworks, Distributors, Glaziers, Manufacturers, and Contractors.