We suggested that a combination of Optiphon acoustic glass be used in conjunction with toughened safety glass to make up the double glazed units. In addition, the glass also had our standard coating which helps reflect heat back into the room. Complete new Accoya box sash windows and doors were fitted to maximise the reduction of sound entering the property. We were able to replicate period features of the original sash windows yet incorporate modern technologies for a warmer, quieter home. The overall result was a huge reduction in air traffic noise and the dramatically improved appearance did not go unnoticed by local residents.