Window Energy Ratings and Energy Efficiency

Many window companies will be trying to achieve high energy ratings to add to the quality of their overall product range and to offer consumers greater informed choices about the products they offer.

Window profiles are part of the story, but as glass makes up most of the area in a window, the components used in its construction are critical to achieving good levels of insulation.

Instead of just Centre pane U value the W.E.R (Window Energy Rating) is concerned with the heat loss of the whole window. Therefore a combination of Coated Glass, Low Iron Glass, Warm Edge Technology and gas filling is critical to achieve a good rating.

This link explains the benefits and how the rating system works:


Energy Efficency Certificates

We hope you found the information provided on this page useful. If you require any further technical assistance in regards to your requirements or just have a question, please contact our expert sales team on: 01245 249405, or by using our customised web enquiry form.