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History

Thermoseal Group Limited has extensive experience in manufacturing and supplying premium products to the window industry.  We pride ourselves in producing our insulated glass components and glass machinery using customer insight.  Having worked closely with our customers for many years to trial products and gain feedback at every level of service, we have seen continual growth.

1979

Founded in 1979

The business began manufacturing the first Hopper-fed Hot Melt Extruders.  From the outset, much of Thermoseal Group’s custom came from referral from manufacturers who appreciate a premium product produced with an insight into the insulated glass manufacturing process.  We still manufacture these machines to order.

1982

Began Supplying IG Components

Having negotiated supply agreements with leading International Insulated Glass (IG) component manufacturers, Thermoseal Group became a UK distributor to manufacturers of double glazing units.  This became the Group’s core business with over 2,000 components now on offer from its 4 UK sites.

1999

Purchased Perma Led Company

Thermoseal Group’s first component manufacturing venture was the purchase of this successful business making self adhesive Lead strip used for decorative glass units.  This proved a popular addition to the Group’s component offering and is today still part of our product portfolio.

2004

Set up Injection Moulding Division

The first injection moulding machines were purchased to make the Group’s own bespoke corner keys and Georgian components.  This division has been a huge success and has grown with the business.  We now have 9 injection moulding machines running twenty four hours a day producing approximately 10 million mouldings per year, with a tenth machine arriving March 2019.

2010

Warm Edge Spacer Manufacturing & Technical Centre Set Up

Following an extensive research and development project, we began manufacturing industry-leading spacers; Initially Thermobar Warm Edge Spacer Tube, closely followed by Thermoflex Warm Edge Spacer silicone rubber alternative – two different production methods – both highest performance spacers.  This came hand-in-hand with the set-up of our own Technical Centre and EN1279 test facility.

2013

A Gear Up for Export

The Group invested significant additional funds to develop and increase its warm edge product range and capacity whilst developing its export team to pursue further International business.  We have a dedicated export team trained to ensure that we meet customer requirements for export to a worldwide customer base.

2017

Won Multiple Awards

Her Majesty The Queen announced us winner of The Queens Award for Enterprise – International Trade 2017.  We also ranked no.41 in the 9th Annual Sunday Times HSBC International Track 200 League Table in the league of businesses with the fastest-growing International Sales.  Another prestigious award in 2017 was the 'Derek Bonnard Award for Excellence' which was nominated by the Industry at the Glass and Glazing Industry's G-Awards.  This followed an accolade of awards including: ‘Amazon Growing Business Award – Export Champion of the Year’; Wigan Business Award for Export’; EEF Future Manufacturing Award for North West Region for Export and ‘Component Supplier of the Year’ at the glass and glazing industry G-Awards two years in a row.  

2017

Purchased DecraLed Stock and Assets

Following the purchase of all stock and assets of North Western Lead Company, we have made significant investments in a new state-of-the-art design studio to enable us to produce bespoke designs for our customers to incorporate into their own insulated glass products. Lead production has also seen significant investment to digitise, add tooling and update procustion which now allows us to electroplate and powder coat lead for a wide collection of colours and sizes. The DecraLed range now benefits from the full support and expertise of our Technical Centre.

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Thermoseal Group

Our business is dedicated to the manufacture and supply of highest performance components and machinery used in the manufacture of insulated glass. Our particular focus Is on the development of components designed to help meet the changing requirements for more thermally efficient windows. We are a multiple award-winning organisation with almost 40 years in the industry.

Latest News

Thermoseal Group to Celebrate a Decade of Sponsoring the G-Awards
Date Added 23/07/19

For the 10th year in a row, are sponsoring the Glass and Glazing Industry’s G- Awards Champagne Reception, hosted at the prestigious... > More

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