Single Glazing The majority of the single glazing we provide is mainly private householders who have had a window broken in the house, greenhouse, or conservatory etc. It is becoming rarer for single glazing to be required or carried out, as for the past thirty years, most houses have been double glazed. The main single glazing we install is under contract to Manchester City Council, Tameside Council, several other Councils, and Housing Associations where we carry out re-glazing work in schools and other public buildings.