A sash window, also known as a hung sash window, comprises one or more moveable panels – these are the sashes. These sashes make up a frame to hold the panes of glass, which may be separated into smaller panes by glazing bars or small moulded strips of wood.

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The term sash window is used to describe windows that slide open vertically or horizontally. They can also be known as a sliding sash or a Yorkshire sash.

When were sash windows invented?

Sash windows are often thought to have come from Holland in the 17th century; however, the oldest surviving sash windows were actually seen here in England and date back to the 1670s. The stunning Ham House in Richmond-upon-Thames, which was originally built in 1610, is known for having one of the first examples of early sash windows. It is believed that the original creator was a man named Robert Hooke, but some still believe that they were Dutch.

The sash window was often used in Georgian and Victorian houses. This style of window has a delicate appearance and looks very classy, reflecting these eras. At the time, sash windows would have had larger wood strips and smaller panes of glass due to glass being expensive.

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In Edwardian times, the glass panes became larger as people were able to source cheaper glass. Sash windows became feature pieces, with some full-length or very wide. Stained glass also became popular and was commonly used in the upper sashes.

Sash windows today

Today, sash windows are still seen in properties all over the world. Some are original sash windows, while others are renovated and replaced windows Dublin by companies such as https://www.keanewindows.ie/windows-dublin/. Unfortunately, only 25 per cent of original sash windows still exist; however, modern replacements look just as good and are probably a lot warmer, as they can now be thoroughly draught-proofed.

You can also purchase mock sash windows, which will give you the elegant look of the wooden sash window but the versatility and safety of a uPVC version. Mock sash windows usually have a tilting opening rather than a sliding pane, which means they are both easier to open and a safer option if you have pets or children. They also improve the thermal efficiency of the home.