At The Sash Window Workshop we often get asked by customers what is the difference between a sash window and casement window. To address this uncertainty, we have created an infographic to highlight the main differences, alongside some of the benefits and issues associated with each type of window.
Sash windows normally open by sliding vertically, although occasionally they will open by sliding horizontally. Sash windows can either be double hung, where both sashes are operational, or single hung, where only one sash can be moved.
Sash windows were common in both the Georgian and Victorian periods, although the styles of window varied. Some Edwardian properties also contain sash windows.
One benefit is that double hung sash windows allow for better ventilation than casement windows. By opening both sashes you can keep your room cooler in the summer months by allowing the warm air to flow out and allowing cooler air into the property.
Sash windows generally have a higher air leakage rate than casement windows, as casement windows close by pressing against a frame. It is therefore important to ensure that your sash windows are draught proofed.
Problems with the sash cords or spirals can result in sticking or dropping sashes. If your sash windows experience these issues, contact a professional to fix them for you.
Casement windows normally open outwards like a door, although some casement windows will open inwards. They are attached with two or more hinges.
Casement windows were popular in the Tudor period, before becoming popular again in the Edwardian era.
One of the benefits of casement windows is that they are harder to break into when the window is locked. This is due to the lock being within the frame and the window opening outwards, making it harder for someone to force the window open from outside.
Casement windows are able to open out fully meaning that they can provide better views than sash windows.
However, casement windows will be more exposed to the elements due to opening outwards. They also have more mechanical parts to them, meaning there are more parts to the window that could go wrong. This means that they can need more regular maintenance than sash windows.
The Sash Window Workshop
The Sash Window Workshop specialise in the repair and replacement of both timber sash windows and casement windows. To obtain a free, no obligation site survey and quotation, contact us on 01344 868 668.