

Therm-o-lite Inc.
- 5 Products
- Windows
United States
Residential, Commercial
Midwest
- Active
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.
Explore All Products (5)
About the Brand

Historic Retrofit Windows
A convenient and cost-effective way to improve the energy performance of historic windows while still meeting the requirements of the Federal Historic Preservation Tax Incentives Program is to install interior retrofit windows. Thermolite has worked with numerous government agencies – including the
ESCOs
As a leading manufacturer of energy efficient interior window systems, Thermolite specializes in helping Energy Service Companies (ESCOs) bring greater value to their clients. Windows are one of the most vulnerable points for buildings in terms of energy performance. According to the U.S. Department
Hurricane Protection
Thermolite’s Hurricane Storm Series system utilizes a design that can withstand Category 5 hurricane winds. This system easily installs on the inside of a building’s existing windows and meets the strictest building codes in the country.
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About Therm-o-lite Inc.
www.thermolitewindows.comTheir 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.
South Bend (Corporate Address)
+1 (574) 234-4004
1330 High St, South Bend, Indiana 46601, United States of America




