What are the differences between a Sash Window and a Casement Window?

Timber Sash windows and Timber Casements each have their own differences and advantages. It is basically up to you what you choose. It really depends on your style of property that the windows are intended for? Older and more historic buildings would normally opt for Sash Windows and more modern buildings would probably go for casement windows. Each window type has many options which can cater for virtually every requirement you could ask from a window. Here are some points to highlight some of the main differences.

Timber Sash Windows…

  1. are timeless and traditional, mostly sliding up and down. (tilting options for easy cleaning are available)
  2. can come with both modern and historical features
  3. are often the only window legally accepted for Historical and Listed Buildings to maintain their true heritage appearance.
  4. …with weights and pulleys wheel, have been tried and tested for centuries already, so if they are made with high quality materials, durability and reliability is not in any doubt.
  5. can be made to be Fire safety exit windows (we have some special designs for this purpose, please ask us first, if others say it can’t be done; check with us as we probably can do it eg: our Sashment Window System)
differences between a sash and casement
Traditional Box Sash Windows

Timber Casement Windows…

  1. if they are side hung, in means they open similar to a door. If they are top hung it means they operate like a door on its side.
  2. have many more options of configuration, styles, and sizes, opening inwards or outwards
  3. are usually better as Fire safety exit windows (depending on dimensions, if required please check with us).
  4. are suitable for more modern properties.
  5. are generally known to be safer than any sash window, regardless of what security certification any product has.
  6. can be easier to clean the glass outside, especially at heights and especially if your sash windows do not tilt. (Sashment Windows are an exception to this rule)
  7. can suit more modern buildings more so than sash windows.
traditional casement windows
Traditional Flush Casement Windows with Georgian Bars

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