Warfield Glass provides a complete solution to your glazing needs Sealed Units We manufacture sealed units to BS EN 1279 and have been manufacturing sealed units for 12 years and can make clear patterned Georgian glazed units. For replacement work or new frames. Low E Glass Low E is the rate heat radiated through an item. Low E glasses have been developed to provide increased thermal insulation. This has a coating on the surface that faces into the air gap of double glazed units. The microscopic pane of glass makes a difference to its performance by inhibiting the radiation of heat from within a room and instead the heat is reflected back into the room by the coating. Heat losses can be compared by their U values. The higher the U value the greater the hear loss. Ordinary glass has a U value of 2.8 and double glazing with Pilkington K as used by ourselves has a U value of only 1.9 which is considerably better than conventional double glazing. Low E glass such as Pilkington K have been designed for use in double glazed units only. Soft Coat Soft coat units offer a lower U value than K glass and even lower when Argon gas filled. Contact us for U values. We also offer a glazing service and replacement of misted and broken down units. Catflaps supplied and fitted to sealed units.