JWS PVC profiles conserve the earth's resources. Its five chamber 70mm front to back design minimises energy use in the home and its high level of recycled content in the RCM reinforcement means it uses fewer raw materials during production. Our intelligent PCE gasket cuts factory processes and adds none back, creating a superior weatherseal that improves installation and durability. Localised profile thickening improves hardware anchorage.

The BFRC Scheme is the UK’s national system for rating the energy efficiency of windows and is recognised within Building Regulations. BFRC Window Energy Ratings use a consumer-friendly traffic-light style A-E ratings guide similar to that used on ‘white’ goods (such as fridges, freezers, washing machines etc…). This ratings label can be used by you to make more informed choices about the energy efficiency of the windows you are looking to purchase. With carbon emissions high on the global agenda and the current high cost of fuel, we are all looking for ways to make our homes more energy efficient."A" Rated Windows help to contain and conserve heat within the home keeping out wind and rain, resisting condensation and yet allowing natural “free” energy - the warmth of the sun - to heat the home. They also contribute to improved sound insulation.