Since 1979, Thermolite has been a leading innovator in secondary interior window systems. Thermolite is a GSA-certified federal government contractor serving areas nationwide with notable projects in Washington DC,Philadelphia, New York City, Chicago, Detroit, and more. We work with a variety of industries to improve their building performance through interior window retrofits.
What is the Thermolite Window System?
Our patented Thermolite Window System is a one-of-a-kind alternative to traditional replacement windows. It is a secondary window system – the existing glass and frame is retrofitted on the interior of the building with a simple frame system. This transforms the existing glass into a high performing new window system in a manner comparable to double or triple glazed windows.
What are the benefits of secondary windows?
• Typical installations are 50% less expensive than new glazing and can be performed more discreetly during off-hours
• More energy efficient – commercial building insulation seals the building envelope to increase thermal performance and temperature comfort levels
• Preserve the aesthetic of the original windows – ideal solution for historic buildings
• Available in a variety of customized options, including sound control windows, commercial storm windows for hurricane protection, and blast mitigation security window systems
How do I learn more about Thermolite’s secondary window systems?
Contact us today by filling out our contact form to request more information, or give us a call at (574) 234-4004. We also have a variety of resources demonstrating our product and its performance, including our numerous case studies and a sampling of notable projects throughout the US.