A white handle on a white uPVC window being opened by a hand

How to Replace the Handle on a uPVC Window

uPVC windows are found in houses across the UK, and as durable as they are, there are still parts that take a beating. This includes the handles, and a stiff, broken, or worn-out handle on a uPVC window is more than just an annoyance - it can be a security risk and compromise your home’s energy efficiency. The good news? Most people don’t realise that replacing a uPVC window handle is a simple task that most homeowners can tackle in under 10 minutes, with just a screwdriver and a little know-how.

The important thing is to make sure you have the right parts to carry out a repair, and in this guide, we’ll walk you through each step to get your window back in perfect working order.

When Should You Replace a uPVC Window Handle?

Common reasons include:

  • The handle is loose or floppy
  • The plastic surrounding the lock is damaged or missing
  • The key no longer works or is missing
  • It’s difficult to open or close the window
  • You’re updating to a new style or colour
  • You want to upgrade to a lockable handle for added security

Tools & Equipment You'll Need

  • Flathead or Phillips screwdriver (depending on your handle)
  • Replacement uPVC window handle (ensure it matches your window style)
  • Measuring tape or ruler (to check spindle size)
  • The key to the old handle (if still operational)

Types of uPVC Window Handles

Before you buy a replacement, identify the handle type:

Espag (Espagnolette) Handles
The most common type, with a spindle that turns the window’s internal locking mechanism.


Cockspur Handles
Common on older windows. The handle closes over a wedge-shaped block.


Tilt and Turn Handles
Found on tilt-and-turn windows. These have longer spindles and allow dual movement.

This guide focuses on Espagnolette handles, but the basic process is similar for other types.

Step-by-Step: Replacing a uPVC Window Handle

1. Measure the Existing Handle

Before removing the handle, take note of:

  • Spindle length (measured from the base of the handle to the tip of the spindle)
  • Fixing hole centres (distance between screw holes, usually 43mm for espag handles)

This ensures your replacement fits correctly.

2. Remove the Old Handle

  1. Open the window fully to access the screws.
  2. Most handles have a plastic cover cap over the screws. Gently lift it with a flathead screwdriver.
  3. Use your screwdriver to unscrew the two fixing screws.
  4. Carefully pull the handle away from the window frame. The spindle will slide out with it.

Tip: If the handle is locked and you don’t have a key, you may need to drill the lock out. In that case, consult a professional to avoid damaging the mechanism.

3. Install the New Handle

  1. Slide the spindle of the new handle into the window mechanism.
  2. Line up the screw holes and secure it with the supplied screws.
  3. If your new handle includes a key, test it to make sure it locks and unlocks properly.
  4. Clip on any screw cover caps for a neat finish.

Final Checks

  • Open and close the window a few times to ensure smooth operation.
  • Check that the handle locks securely (if applicable).
  • Ensure there’s no movement or looseness in the fixing screws.

Troubleshooting Tips

  • Handle won’t turn? Check that the spindle is the correct length - it may be too short or not properly aligned with the internal lock.
  • Screws won’t grip? If the screw holes are worn, use slightly larger screws to get a secure fix.
  • Handle is stiff? Apply a small amount of silicone spray into the mechanism (avoid WD-40 as it can attract dirt over time).

Where to Buy a Replacement Handle

We stock a wide variety of uPVC compatible Espagnolette window handles, in an assortment of styles and finishes. 

Make sure to double-check the spindle length and screw centres before purchasing.

You can view our entire range of uPVC window hardware here.

Replacing a uPVC window handle is one of the easiest and most affordable ways to improve your window’s function and appearance. With just a few tools and a careful approach, you can complete the job in minutes - no need for a tradesperson.

If you’re dealing with a jammed mechanism or suspect a deeper issue with the locking system, it may be worth calling a professional window technician to take a closer look.