Thermoseal Group Limited is the UK glazing industry’s leading supplier of machinery and insulated glass sealed unit components.

We export world-wide, so whether you’re a sealed unit manufacturer, a window fabricator or a double glazing installer in any location, we are the one-stop-shop for machinery and tools for all levels of sealed unit manufacture.

We also supply over 2,000 insulated glass components, including: spacer bar and accessories; sustainable warm edge solutions; grille and georgian style window components; molecular sieve desiccant; sealants, lead and decorative glass bevels and accessories and most other items required for sealed unit manufacture.

Thermoseal Group was founded in 1979 and quickly developed into an industry leader. Our original business was the sale of a limited amount of machinery from our small factory in Birmingham.  Thermoseal Group now operates from four rapidly expanding branches in Birmingham, Wigan, Kent and Northern Ireland.  We now stock and manufacture a wide range of machinery and insulated glass sealed unit components.

Aside from our Kent-based Lead plant where we produce our exclusive range of decorative Perma Led, most of our manufacturing processes have always taken place from our Birmingham factory.  However, as the business is expanding, we will manufacture more from all of our UK branches.

With innovation and a willingness to develop our industry as a priority, we offer a guaranteed quality of product and a reliable and timely delivery of goods by our dedicated team of drivers.