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Thermoseal Group Limited

  • Over 2,000 double glazing components
  • Leading UK supplier
  • Machinery and Components
  • Supplying to the insulated glass industry


Gavin Way, Nexus Point , Off Holford Drive
West Midlands
B6 7AF

Visit Full Website
Phone: 0121 Reveal Click Here

Todays Opening Hours

Thursday : 8:30-1:00 & 2:00-5:00


Warm Edge Spacer

Thermoseal Group Limited - Warm Edge Spacer

Thermoseal Group Limited is dedicated to Insulated Glass. With over 30 years’ experience in the window industry, Thermoseal Group is the largest specialist insulated glass component manufacturer and distributor in the UK.

We supply the largest combined sales volume of spacer bar into the market in the UK, as well as over 1,500 other insulated glass components and glass manufacturing machinery.’

What We Do

Thermoseal Group supply insulated glass components including: Spacer Bar and Accessories (Aluminium; Thermobar, Thermoflex and Thermix Warm Edge; as well as Steel); Gas fill fittings and machinery, Georgian Bar and Accessories; Molecular Sieve Desiccant; Decorative Lead, Bevels, Films and Accessories, as well as Sealants and Integrated Blinds (residential and commercial).

Click the 2 images below to visit that section of our website:

Glass machinery includes:

Gas filling machines
Hot Melt Extruders
Edge Deletion machines
Water Treatment Plants
Production Lines
Glass Washers
& most other equipment

Injection moulding has also become a focus of the business so that we can offer our own range of quality products developed in-house including: Corner Keys; Georgian Edge Keys and Cruciform Fittings or Centre Keys as they are sometimes referred – The Combi Cross mix and match Georgian Cruciform is a new development in this area.

As a Group, we put innovation at the heart of what we do and we have 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. We are the only UK manufacturer of IG components with a fleet of 30 vehicles to guarantee a reliable timely service.

We have a fully interactive website offering the most comprehensive range of insulated glass (IG) sealed unit components and glass machinery, as well as industry news, technical information and marketing material to help and support IG manufacturers. Please log onto our website to see details of the full product range we supply. You can also request sales information and prices by adding products to a shopping list and e-mailing us direct -

Image Showcase

About Us

We are dedicated to improving standards and shaping the future of the insulated glass industry, and are members of the Glass and Glazing Federation (GGF) and Bundesverband Flachglass (BF). Our dedicated UK teams in Birmingham, Wigan, Kent and Belfast provide a bespoke service to deliver nationwide on our own vehicles, while international sales are directed through our European sales team and worldwide network of sales agents.

In recent years we have begun large scale in-house manufacturing of flexible and rigid warm edge spacers, and injection moulding of compatible fittings.

We have invested in excess of £5 million to develop our manufacturing capability, and also have our own Innovation Centre with the latest equipment for research and development of next generation products. As the only insulated glass component supplier in the UK with in-house EN1279 testing, we are able to conduct ongoing quality testing for both our own products and those bought in. We operate to ISO 9001:2008 and ensure that we comply with CE Marking requirements.

We make it our business to ensure that we provide a tailored supplier support system for customers. As an Investor in People for over 10 years, people are important to us, both within the business and our customers and suppliers alike.

Warm Edge and IG Component Manufacture


Warm Comfortable Home Video Thermoseal Group


To view this video in different languages Click Here

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News & PR

Thermoseal Group Sponsors the G17 Awards Champagne Reception

Thermoseal Group - the leading manufacturer of warm edge spacer bars - will be sponsoring the Glass and Glazing Industry's G17 Awards Champagne Reception for the 8th year in a row.

Thermoseal Group Purchases the Assets of North Western Lead

Thermoseal Group, leading UK insulated glass (IG) component manufacturer and supplier to the window industry for over 37 years, has purchased the stock and assets of North Western Lead adding its DecraLed decorative product range to its already comprehensive range of IG components on offer.

Thermobar 4mm for High Performance Heritage Windows

Thermoseal Group has developed a new warm edge solution for insulated glass (IG) manufacturers looking to construct double glazing units with narrow cavities for Heritage-style windows.

Thermoseal Group Wins The Queen’s Honoured UK Award

Thermoseal Group have been publicly announced by Her Majesty The Queen on Friday 21st April 2017 as winner of The Queen's Awards for Enterprise: International Trade 2017.

Get your Free Reel of Thermoflex Warm Edge Spacer Now!

A free trial of Thermoflex Warm Edge Spacer is now being offered by Thermoseal Group, giving potential customers the opportunity to sample the UK’s highest performance flexible spacer with a lowest thermal conductivity rating of 0.135W/mK.

Thermoseal Group Wins Amazon Growing Business Award ‘Export Champion of the Year’

Thermoseal Group has been announced as the Winner of the ‘Export Champion of the Year’ at the 18th annual Amazon Growing Business Awards.

Thermoseal Group Multiple Award Winners

For the second year in a row, Thermoseal Group have won the coveted 'Component Supplier of the Year' G-Award, additionally taking away further awards for their export business.

Morley Glass 2-Part Investments for Future Growth

Morley Glass & Glazing Ltd has loaded its new premises with equipment to manufacture its highest quality insulated glass (IG) sealed units with Kommerling 2-part Polysulphide from Thermoseal Group.

Glasstec Düsseldorf Success for Thermoseal Group

Thermoseal Group reports a successful attendance at the Glasstec Exhibition in Düsseldorf, both through enquiries at the Group’s booth and also at their highly successful ThermoBAR aftershow party.

Thermoseal Group Finalists for Multitude of Prestigious Awards

Thermoseal Group has again been shortlisted for the Glass and Glazing Industry G-Awards 2015 for the ‘Component Supplier of the Year’ and ‘Training and Development Initiative of the Year' categories.

New Heritage Thermobar Interbar for Multipane Windows

Insulated glass (IG) component manufacturer and UK leading supplier to the IG industry, Thermoseal Group, has added a new 6mm x 18mm Black Thermobar Interbar (Muntin) and fittings to its range of specialist bar designed to simulate traditional Multipane windows. This slim profile bar is now in stock for UK nationwide delivery and is ideal for use in heritage double glazing units and also high performance slim triple glazing units which are now more popular in New-Build Housing.

'Warm Comfortable Home' Video to Showcase Warm Edge Technology Worldwide

Leading UK insulated glass (IG) component manufacturer, Thermoseal Group, has launched its ‘Warm Comfortable Home’ video in 7 different languages showcasing the benefits of warm edge technology.

Thermoseal Group Reveals New Warm Edge Products at Glasstec 2016

The UK’s leading Insulated Glass (IG) component specialist, Thermoseal Group, is set to reveal new products to be added to its highest performance spacer system ranges at the Glasstec International Trade Fair in Dusseldorf, 20-23 September 2016.

The Champagne’s on Thermoseal Group at the G-Awards 2016

Champagne will again be on free-flow with compliments of the 7th-year-in-a-row Glass and Glazing industry G-Awards Champagne Reception Sponsor - Thermoseal Group.

Simulate Multipane Windows in Triple Glazing with New Thermobar Interbar

Thermoseal Group, the UK’s leading manufacturer of warm edge spacers and accessories is soon to add a 6mm x 18mm Interbar (Muntin) and fittings to its current Thermobar Interbar range. This new narrow profile is designed to simulate traditional multipane windows in high-performance triple glazed solutions.

Ooh! Ah! ThermoBAR! Join Thermoseal Group in Düsseldorf!

Thermoseal Group invites all customers and industry contacts to see their team on stand B15 in Hall 17 at the Glasstec International Trade Fair in Düsseldorf from 20-23 September 2016.

NEW Chartwell Green and Anthracite Grey Georgian Bar & Accessories

Thermoseal Group has added to its broad range of Georgian Bar and Accessories with its new Chartwell Green and Anthracite Grey products.

Thermoseal Group masts the UK flag for British Products!

Thermoseal Group introduced its highest performance warm edge spacers at China Glass in Shanghai while simultaneously showcasing its UK industry-leading products at the Fit Show Exhibition in Telford.

NEW Thermoseal Group Video Showcasing its Bespoke Warm Edge Production

Thermoseal Group has introduced its first official video showcasing its award-winning innovation centre and warm edge production, as well as its international IG component supply business.

Events & Shows

Glasstec 2014

Glasstec 2014

Key Contacts

Mr. Dietmar Maginot

Mr . Dietmar Maginot
Export Sales Manager

Email: export

Mr. Mark Hickox

Mr . Mark Hickox
Sales Director

Email: sales

Opening Hours

Monday -   8:30 to 1:00 & 2:00 to 5:00
Tuesday -   8:30 to 1:00 & 2:00 to 5:00
Wednesday -   8:30 to 1:00 & 2:00 to 5:00
Thursday -   8:30 to 1:00 & 2:00 to 5:00
Friday -   8:30 to 1:00 & 2:00 to 5:00
Saturday -   Closed
Sunday -   Closed