#1 Homeowner Preferred Glass Block Supplier.

The Glass Block Supply Company has built a superior reputation by providing quality products and exceptional service to Homeowners. A knowledgeable technical support team will assist you every step of the way. From helping you plan your project, verify measurements and dimensions, to selecting just the right products to get you the look you desire. The preferred One-Source supply destination for everything you need to complete any glass block project. We have the largest selection of premium Pittsburgh Corning Glass Block products, and the best selection of window sizes, patterns, frame colors and vents.