How to Identify Your uPVC Window Handle Type | Espag, Cockspur & Tilt-

Replacing a broken or outdated window handle? Before buying a new one, it’s important to identify what type of uPVC window handle you have. With so many styles and measurements, choosing the wrong handle can lead to poor fitting — or worse, a security risk.

In this guide, we’ll help you quickly and confidently identify your existing handle, take the right measurements, and point you to the correct replacements available from our expert team at Home Secure Shop.

If you already know what handle you need, you can go straight to our full range of uPVC window handles and find your replacement.

Understanding the mechanics behind uPVC window handles can help homeowners appreciate how small design details affect both functionality and security. Different handle types—such as espagnolette, cockspur, and tilt-and-turn—each use distinct locking mechanisms that influence a window’s operation and safety. Learning about these components in a broader context can enhance your DIY confidence and ensure accurate handle identification. For a detailed overview of the various types and functions of window fittings, see Wikipedia’s article on Window Hardware

Types of uPVC Window Handles

There are three main types of uPVC window handles used across UK homes:

🛠 1. Espag Handles

White espag window handle with square spindle, shown upright against a grey background with text ‘Espag handle’ below.

The most common type, used on modern windows
Operates a multipoint lock by turning a spindle
Usually secured with two screws
Spindle protrudes from the back and connects into the lock mechanism
Often has key-locking functionality for added security

👉 Browse Espag handles →

🛠 2. Cockspur Handles

Collage of window handles: left shows a white handle with key and cover cap, center shows a close-up with backset measurement marked in millimeters, right shows three views of a white handle base plate.

Common on older uPVC and aluminium windows
Has a “spur” that catches on a wedge to keep the window closed
No internal lock mechanism — the pressure keeps the window shut
Easy to identify due to the curved spur design

👉 Browse Cockspur handles →

🛠 3. Tilt & Turn Handles

Two window handles: one in white finish and one in chrome finish, both with key-operated locks.

Found on windows that open inward or tilt for ventilation
Features a longer spindle and often includes key-locking
Distinct due to their design and movement style

👉 See Tilt & Turn options →

How to Measure a uPVC Window Handle

Once you’ve identified the handle type, you'll need to measure:

Spindle length (Espag and Tilt & Turn):
Measure from the base of the handle to the tip of the spindle.
Common sizes include 15mm, 30mm, and 40mm.
Screw hole spacing (Espag & Cockspur):
Usually measured in mm between the two screw holes (centre to centre). Common sizes include 43mm or 64mm.
Backplate width (Cockspur):
Ensures proper alignment with the existing frame.

What if I Can’t Match My Handle?

Don’t worry — many replacement handles are universally compatible or come with adjustable fixings. Our team can help you find the closest match.

📞 Contact us for support →

Top Tip! – Many people buy a 40mm spindle and cut it down with a hacksaw if required

When Should You Replace a uPVC Handle?

The handle is loose, jammed, or stiff
The lock mechanism is faulty
You’ve lost the key and need a replacement
You're upgrading to a more secure option

If your handle is damaged or no longer locking properly, we always recommend replacing it to maintain your home’s security.

Still Not Sure? We’re Here to Help

Our team specialises in all things uPVC window hardware. We supply tradespeople and homeowners across the UK with quality, tested parts.
➡️ Shop our full range of uPVC window handles
➡️ Contact us with photos or questions

Frequently Asked Questions (FAQ)

How do I know the replacement handle will be compatible?

For a deeper look at handle compatibility, see our guide on whether all uPVC handles are universal.

What’s the difference between Espag and Cockspur handles?

Espag handles operate a spindle-driven locking system, while Cockspur handles rely on a curved spur that presses against a frame wedge.

How do I measure spindle length?

Measure from the base of the handle to the tip of the spindle. The most common sizes are 15mm to 40mm.

Can I replace a Cockspur with an Espag handle?

No — they use different locking mechanisms. You’ll need to match the handle type to the window mechanism unless you plan to change the window internals.

Are there other weak security points I need to know about?

While replacing a window handle improves window security, it is also worth checking that your door locks are up to standard — your front door is the most common entry point for burglars.

Ready to order? Browse our full collection of replacement uPVC window handles — we stock Espag, Cockspur and Tilt and Turn handles in all common sizes and finishes, with fast UK delivery.