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Highest quality, insulated glass

Purpose-designed Celsius Performance Glass for conservatory roof applications

Celsius Performance Glass

We specialise in high-quality insulated glass units for window, door and conservatory systems including purpose-designed Celsius performance glass for conservatory roof applications.

With three large glass manufacturing sites covering the UK, we’re best placed to meet our customers needs with products that have been designed to maximise on thermal efficiency when used in combination with our leading PVC-U and aluminium systems.


Purpose-designed Celsius Performance Glass means the very best in thermally efficiency.




A microscopically thin, transparent coating is applied to the glass that reflects heat (infrared energy). This layer provides energy efficiency to the units and is designed to stop extremes of temperature entering from your glazing.


Case Studies

Using Celsius Performance Glass in real world applications has become the norm for many of our installers and fabricators.

Case Study - Celsius Performance Glass

Celsius performance glass is the ideal solution for so many applications

Case Study - Celsius, Knowle Manor

Knowle Manor utilises a SkySpace portal frame to create a beautiful space full of natural light coming from the traditional windows and Celsius glazed roof.

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    Make an enquiry

    If you would like to know more about the Celsius Performance Glass range, please get in touch. Either call one of our glass representatives or email us with your enquiry.