The list of our past reglazing projects where our team reglazed existing sash windows with double-glazed units. The reglazing help to improve the thermal efficiency of period wooden windows, reduce outside noise and reduce energy bills. If you live in a listed building with single-glazed windows, we can change the glazing in your windows to match the modern building regulations whilst retaining the original features of your building. Reglazing is a process where we remove the existing glass panes from your windows and replace them with new, double-glazed units.