GlassBase is an independent U.S. platform focused on windows, doors, and glass. It helps homeowners and buyers evaluate window performance and find companies, while giving manufacturers, suppliers, and industry professionals a place to present their products and services.

Its Window Performance Simulator estimates potential energy savings using a ZIP code, window type, performance level, and climate zone. Users can compare U-factor and solar heat gain coefficient (SHGC), review climate-optimized configurations, and explore window brands and systems. The platform also offers a directory for finding local window and glazing companies, with company profiles and options for professionals to list their businesses and systems.

GlassBase’s industry hub covers accessories, doors, glazing, facades, suppliers, and industry news. Its resources include guides, case studies, white papers, and explanations of topics such as Energy Star ratings and low-emissivity glass. With a database of more than 400 systems and information on thousands of companies, GlassBase connects product research, performance comparisons, and business visibility in one platform.