We now offer Luxaflex Duette Architella blinds, that provide a massive improvement in heat retention when keeping your existing single glazed windows. Perfect for situations where double glazing is not permitted, such as in listing buildings and in some conservation areas, or for when the character of original crown or drawn glass is to be kept. On top of our draught proofing service, this will add real warmth to your home this winter, to find out how much you could save take the energy saving calculator here