For a building to be truly energy-efficient, it must have energy-efficient window solutions installed. Our double glaze upgrade service is designed to radically improve your original windows and make them energy efficient.
It is important to understand that not all double glazing is the same and does not offer the same level of thermal insulation. We offer 3 of the best energy efficient glazing options, Slimlite double glazing, Heritage double glazing, Pilkington K Glass. Glazing units are from 8mm, 9mm to 12mm thickness. Whatever solution you choose, your new double glazed sash windows will provide 3 to 5 times more thermal insulation than your current single glazed windows.