Aged brass locking window fastener, an example of a window handle

Aged Brass Locking Avon Fastener, from our current range.

What is a window handle?

"Window handle" is the general term for the handle fitted to a casement window to open, close and fasten it. In practice this covers two main types: a casement fastener, which pulls the window shut against a single strike plate, and an espagnolette handle, which operates a multi-point locking bar running the height of the window. Both are commonly referred to simply as "window handles" in everyday conversation, even though they are functionally quite different.

Which type your window uses depends on its age, height and how it was originally specified, so it is worth checking your existing hardware before assuming which type you need to replace.

Where window handles are used

  • Casement windows – the standard application for both fastener and espagnolette handle types
  • Period properties – taller period casements often use espagnolette handles, while smaller windows more often use simple casement fasteners
  • Replacement and restoration projects – matching the correct handle type is important when restoring or replacing existing window furniture

Choosing the right window handle

A few practical points are worth checking before you buy:

  • Fastener or espagnolette – check which type your window currently uses, since they are not interchangeable without altering the window
  • Handing – many window handles are handed for a specific opening direction; check left or right hand before ordering
  • Locking option – locking versions add security and are often specified to meet insurance requirements, see our Window Locks guide
  • Finish – see our Hardware Finishes Guide to match other window and door furniture

Related products

Browse our current range in Fasteners and Espagnolette, or see the related Casement Fasteners and Espagnolette Handles guides.

Frequently asked questions

How do I know if I need a casement fastener or an espagnolette handle?

Check your existing window hardware: a casement fastener is a single lever that pulls the window shut against one strike plate, while an espagnolette handle operates a locking bar running the full height of the window with several locking points.

Are window handles handed?

Many are, meaning they are made specifically for a left or right opening window. Check your existing handle or window opening direction before ordering.

Can I fit a locking window handle myself?

In most cases yes, provided the replacement is the same type and size as your existing handle, though matching an espagnolette handle to its locking bar can require more careful measurement.

Back to the Window Furniture Guide, or explore the full Knowledge Centre.