Renovation

The charm and character that original sash windows bring to period buildings are qualities that can’t be replaced. But they can be restored.

To improve performance of existing sash windows, secondary glazing can be installed discreetly to the inside of frames, providing an extra layer of insulation that keeps your home warmer in winter and cooler in summer.

Double glazed timber sashes, including high-performance slim double glazing units.

Ultra slim FINEO glass has a thermal insulation value of 0.7 W/(m2.K), which is equivalent to triple glazing and up to 8 times better than single glazing.