Energy Efficient Windows

Energy efficient windows, doors and conservatories

Save money on your heating bills

Home interior with blinds Satisfied customers Cosy orangery interior Comfortable orangery interior



Windows manufactured by Win-Dor can not only improve your home’s aesthetics, but they also have outstanding thermal properties. Our uPVC windows are capable of achieving an ‘A’ Window Energy Rating (WER) when used in combination with high quality glazing units. By referencing our windows against the WER alphabetical scale from A to G with – with A being the best and G the worst – our uPVC windows more than satisfy the minimum requirements stipulated by building regulations, with C being the minimum required standard. The investment in high quality uPVC windows often proves to be the most cost effective decision, as in the long run it will save you a significant amount of money on heating bills.



Intelligent energy efficient design


Our uPVC windows are manufactured with an intelligent multi chambered design which not only means that they can be reinforced with steel for added security, but that they also form an effective sealed barrier between the outside and your home – helping to keep your home well insulated and energy efficient. 

Similarly, we can provide aluminium windows with outstanding levels of energy efficiency. Not only can they incorporate high performance weather stripping to prevent the ingress of air and water, but their design uses the latest thermal break technology – meaning that they feature a thermal barrier between the inner and outer layers of aluminium for extremely high levels of efficiency. As a result, we can supply some of the most advanced energy efficient aluminium windows on the market.

Energy Efficient Glass



We can also supply our windows with energy efficient glazing options by applying specially designed coatings which dramatically increase the performance of the window as a whole, coatings which are able to capture heat from the sun and also reflect internal heat back into your home.