A cockspur handle is a type of window handle commonly found on older uPVC or aluminium double-glazed windows. It features a "nose" that engages with a wedge-shaped block on the window frame to secure the window closed. This design differs from timber window handles, where the handle's nose closes into a block.

To remove a cockspur handle, locate the cover caps concealing the screws on the handle. Gently pry these caps off to reveal the screws, then unscrew them to detach the handle. If the handle is attached with rivets instead of screws, you'll need to drill out the rivet heads to remove the handle and re-rivet the new one during replacement.

When replacing a cockspur handle, pay attention to the following:

• Measure the distance from the base of the handle to the underside of the nose. This ensures the handle pulls the window tight enough to close securely and prevent drafts.
  
• Measure the distance between the centres of the fixing screws. Common sizes are 38mm and 58mm, but it's essential to measure your existing handle to ensure compatibility.

Yes, replacing a cockspur handle is a straightforward DIY task. Ensure you have the correct replacement handle that matches your window's specifications, including step height and fixing centres. If your current handle is attached with rivets, you may need basic tools like a drill and rivets to install the new handle securely.