Our Pledge

Thermoseal© Means Value

In our 65th year as a trusted name in Insulating Glass Units, we are guided by one fundamental pledge: Provide value to our customers.

We do this through open and honest communication, mutually-beneficial economics, and by continuing our founding ambition to build a better glass unit. Our pledge is the root of our outstanding relationships with exceptional customers and suppliers. And of course, our extraordinary products are built for superior viewing and performance.

Today, you can feel the Thermoseal© difference in everything we do, from how we treat each other, to our product details, including our:

  • Best in class Thermoseal Pureview LED lighting.
  • Widely compatible for replacement of full-systems and components (Net Clear Openings, door dimensions & shelving hook points)
  • Quick connect pre-wired lighting
  • Smart insulated frame design reduces condensation and energy consumption

65 Years of Obsession

65 years ago, Thermoseal Glass Corporation was founded on the obsession to build a more perfect glass unit.

Irving Newman and his brother-in-law Ira Fine opened Thermoseal© in 1956 in Gloucester City, NJ. Newman's pioneering design would earn Thermoseal's first patent in 1975 for an electrically-energized glass panel and circuit breaker combination.

Today the innovative small glass insulator company has grown to produce more than 200,000 Insulating Glass Units per year—staying committed to the unyielding pursuit of building a better glass unit. Thermoseal's© newest facility in Irving, TX, continues the tradition of providing value by manufacturing new and existing designs utilizing the latest machinery and automation to expand production capacity, further improve quality and shorten lead times.