Most if not all double glazed sashes suffer from some or all of the following problems:
The above design details result in a poorly made and visually unacceptable sash window.
Bolger Sash Windows double glazed sash windows are very different:
The result is that Bolger Sash Windows double-glazed sashes are by far the best-made, which makes them the most authentic, glazed sashes available.
We offer a wide range of glazing options including Pilkington Optitherm double-glazing which will reduce the heat loss through the glass by approximately 65% when compared with single glazing.
And if you choose BENGglas vacuum glass, your windows will outperform triple-glazed windows in terms of energy efficiency, comfort and soundproofing.