Business Details
47 Years
experience
Your Trusted Source for Insulated Glass Components
Thermoseal Group is a multiple award-winning organisation with nearly four decades of expertise in manufacturing and supplying insulated glass (IG) components. Founded in 1979, we specialise in producing high-performance warm edge spacers, sealants, desiccants, and decorative glass products, serving a global customer base across 40 countries. Our commitment to innovation and quality control ensures compliance with ISO 9001:2015 standards, while our Thermobar and Thermoflex warm edge spacers achieve Passive House Institute certification for Arctic climates.We operate from four UK sites, maintaining a privately funded growth model through reinvested profits. Our product portfolio includes over 2,500 components, supported by a dedicated distribution network and technical expertise in energy-efficient glazing solutions.
Services
Warm Edge Spacers
Sealants
Desiccants
Decorative Glass
Glass Machinery
Details
- Year established: 1979
Highlights and features
- We have over 40 years of experience in insulated glass component manufacturing.
- Our products meet ISO 9001:2015 quality management standards.
- We offer Passive House Institute-certified warm edge spacers for Arctic climates.
- We manufacture over 50% of our product range in-house.
- Our global distribution network serves customers in 40+ countries.
Associations and certifications
- ISO 9001:2015
- Passive House Institute
Services
Warm Edge Spacers
Our Thermobar and Thermoflex warm edge spacers significantly reduce heat loss at window edges by up to 94%. These Passive House-certified components improve thermal efficiency, lower condensation risks by 70%, and meet ISO 9001 standards. Ideal for double, triple, and quadruple glazing applications in residential and commercial buildings.
Insulated Glass Sealants
We supply dual-seal systems including PIB, polyurethane, and hot melt sealants that ensure long-term unit integrity. Our Euroseal brand products meet EN1279 requirements for moisture and gas permeability, providing reliable edge sealing for gas-filled and standard insulated glass units.
Desiccant Solutions
Our Eurosiv 3A molecular sieve desiccants adsorb moisture within spacer bars to prevent internal condensation. Available in manual and automatic dispensing systems, these desiccants maintain optimal thermal performance and comply with revised EN1279 standards for gas-filled units.
Decorative Glass Products
The DecraLed range includes adhesive lead strips, bevels, and colour films for creating stained glass effects. Our state-of-the-art design studio offers bespoke patterns, electroplated finishes, and powder-coated options compatible with single and double glazing applications.
Glass Manufacturing Equipment
We provide hot melt extruders, gas fillers, spacer bending machines, and production lines for IG unit manufacturing. Our Thermoseal Group Equipment (TGE) portfolio supports EN1279 certification and includes tools for automated desiccant filling, edge deletion, and quality testing.
Questions
What products does Thermoseal Group manufacture?
We produce warm edge spacers, sealants, desiccants, decorative glass components, and machinery for insulated glass units.
Are Thermoseal Group's products certified for energy efficiency?
Yes, our Thermobar and Thermoflex spacers are Passive House Institute-certified for Arctic climates and other regions.
Which countries does Thermoseal Group operate in?
We serve customers in 40+ countries across Asia, Oceania, Europe, North America, and South America.
What quality standards does Thermoseal Group follow?
We adhere to ISO 9001:2015 standards for quality management and maintain rigorous in-house testing protocols.
Can Thermoseal Group supply machinery for IG unit manufacturing?
Yes, we offer hot melt extruders, gas fillers, desiccant dispensers, and complete production line solutions.
How does Thermoseal Group support sustainable construction?
Our warm edge technology reduces heat loss by up to 94%, lowering energy consumption and carbon emissions.
