At Thermal Windows, Inc., our in-house research, design and testing programs enable us to provide continuous quality assurance. Our testing equipment has been calibrated by a certified AAMA laboratory. All testing is conducted by certified AAMA technicians. (AAMA: American Architectural Manufacturers Association). In manufacturing, we monitor quality in our powder coat, pour and debridge, and insulating glass facilities to maintain a high degree of control over critical areas of window production. For example, our insulating glass line, a horizontal G.E.D. linear system, consistently provides Class "A" certification I.G. units. In addition to our commitment to testing and upgrading existing products, we continue to design new products to meet the fenestration needs of the residential, commercial and heavy commercial markets. Our central location enables us to ship economically throughout the U.S.A. Thermal Windows, Inc. - A growing company that understands the importance of providing the highest quality of products and service.