Therm-O-Lite Windows is a 25-year-old veteran owned small business based in South Bend, Indiana. Therm-O-Lite is a US manufacturer of interior supplemental window systems. As originally designed, the product provides building owners with a cost effective alternative to prime window replacement, while providing significant improvement to the energy efficiency of the building.
In 2001, Therm-O-Lite modified its original design from a vinyl window to an aluminum window and incorporated a patented technology known as “Compression Release Technology” to provide blast resistancy. In August of 2002, the Therm-O-Lite blast resistant window system was independently tested and has received the highest rating conveyed under the GSA Interagency Security Council (ISC) performance criteria.