Glass & Glazing Federation free carbon calculator

The GGF (Glass and Glazing Federation) have developed a free carbon calculator to assist property owners select the most appropriate and most energy efficient, energy saving double glazed UPVC and aluminium windows. The online carbon calculator enables manufacturers and installers to demonstrate to their customers how much they can save on their energy bills, whilst also reducing their carbon footprint by fitting energy efficient windows.

The GGF’s carbon calculator provides authoritative and independent figures which have been verified by the Energy Saving Trust, as confirmed by the Glass and Glazing Federation’s Chief Executive Officer Nigel Rees “The GGF has invested a great deal of money, not to mention time and effort, developing this easy to use…….accurate and simple calculator.”

Energy efficient windows are rated “A” to “G” with “A” being the most energy efficient. Hazlemere Windows supply and fit “A” rated UPVC windows as well as manufacturing and installing “A” rated aluminium windows. As independent manufacturers, Hazlemere Windows are in a position to offer potential customers the benefit of almost 25 years industry experience.


Our showrooms are our shop windows and we have invested heavily to create extensive displays that best showcase our large range of windows, doors and living spaces. You will receive a warm welcome, plus a proper coffee, and the choice to browse at your leisure without interruption.


Want to speak with an Advisor? Give us a call on 08000 825 825

Our friendly team will be pleased to help with any questions you may have.

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