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Spacer Bars & Accessories

We supply the largest volume and range of spacer bars to the UK market including our own manufactured highest performance Thermobar and Thermoflex Warm Edge Spacers, a wide range of Aluminium Spacer Bars and also Steel Spacer Bars.  

Thermobar Warm Edge Spacer is our highest performance engineering plastic spacer which is manufactured in Thermoseal Group’s own spacer bar manufacturing facilities.  We also injection mould a wide range of bespoke fittings in our own injection moulding division where we produce approximately 10 million mouldings per year including Georgian products, Interbar and Duplex Fittings used to simulate multipane windows.

Thermoflex Warm Edge Spacer is our highest performance elastomeric foamed rubber spacer compounded by Thermoseal Group including adding desiccant powder to guarantee the moisture absorption capacity of the product. Compounding in-house allows Thermoseal Group to maintain complete control of the content and quality of the product from initial mixture to product processing, packaging and final distribution. 

Thermobar and Thermoflex Warm Edge Spacer have two of the industry's lowest thermal conductivity values. Both are Passive House Certified Components and can achieve a phA+ rating.  They are also highest rated in passive house hygiene requirements. 

Please use the tickboxes below to refine your search for spacer bars and compatible components, then click on the image of the product you are looking for for full product information. 

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0845 331 3950
Intl: +44 121 331 3950
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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 nominated as G23 'Component Supplier of the Year' Finalist
Date Added 03/10/23

Thermoseal Group is a finalist in the Component Supplier of the Year category in the G23 Awards, in recognition of its investment in infrastructure,... > More


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