Thermoseal Group is the largest specialist Insulated Glass (IG) component manufacturer and distributor in the UK. With over 40 years of experience, we supply over 2,500 components and a wide range of Thermoseal Group Equipment (TGE) for manufacturing IG sealed units, also known as double glazing or triple glazing. Our core products, Thermobar and Thermoflex Warm Edge Spacers, are some of the highest performance warm edge spacers available.

They have achieved a Passive House phA+ component rating for Arctic Climates and are highly rated for hygiene. We export our products worldwide, making us the go-to supplier for IG sealed unit manufacturers, window fabricators, and double glazing installers globally. Additionally, we manufacture self-adhesive lead strips, fused tiles, bevels, and color films for glass decoration.

Our products are preferred by manufacturers and are highly competitive in the international market. With distribution centers in the UK and export operations to 40 countries, we are dedicated to providing reliable, high-quality products and outstanding customer service. Join us in our mission to be an international leader in the IG industry