The UK's leading manufacturer and supplier of insulated glass sealed unit components including market-leading, highest performance, passive house approved spacer systems - Thermobar and Thermoflex Warm Edge Spacer Systems.

Thermoseal Group is the only UK manufacturer to extrude both a rigid and foam spacer system in-house.

Thermobar is a rigid tube spacer system made with an engineering plastic and backed with a unique gas barrier tape.

Thermoflex is a silicone rubber flexible foam spacer system also backed with a unique gas barrier tape.

The Group supplies over 1,500 insulated glass sealed unit components distributed from strategically located depots.

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