Window Energy Ratings (WER's)

by the British Fenestration Rating Council (BFRC) and British Standards Institute (BSI)

Window Energy Ratings or WER's were introduced by the British Fenestration Rating Council (BFRC) as an independent means of determining the performance of double glazed and triple glazed windows, to ensure that both UK property owners, builders and developers installed high performance fenestration products that do conform to the Building Regulations in England and Wales as required by law. 

The A-G rating system was first introduced last decade, before the substantial changes to the Building Regulations on 1st October 2010 when the minimum standard for a replacement or new build window was a Window Energy Rating of "C". Similar to the energy rating for fridges and freezers WER's are a trustworthy guide for consumers as to the energy performance of a product. 

In 2007 Hazlemere became the first company in the UK to design, manufacture, supply and install a dualframe aluminium green window system that achieved an ‘A’ Window Energy Rating. Their products use the latest, state-of-the-art materials to ensure they provide homeowners with the best, most technologically advanced thermally efficient, energy saving, environmentally friendly windows. 

Hazlemere's Eco-friendly energy rated windows (aluminium and UPVC) systems have been endorsed by the Energy Saving Trust, British Fenestration Rating Council and the British Standards Institute, and all achieve the equivlent a WER of ‘C’ or above, so customers can be assured it will offer superb thermal performance that will help them save energy and money on their heating bills.