Cockspur Handle vs Espag Handle: Key Differences

Choosing the right window hardware affects security, ease of use and how long a product lasts. This guide contrasts the cockspur handle and the espag handle so tradespeople and DIY enthusiasts can make informed decisions. We cover how each handle works, where they suit best, fitting considerations, maintenance tips and common pitfalls when replacing a cockspur handle or choosing an alternative.

What is a cockspur handle and how does it work?

A cockspur handle is a surface-mounted window handle that fixes to the face of a casement window sash. The handle operates a hooked or projecting latch known as a spur; as you rotate the handle, the spur engages with keeps on the frame to secure the window. The cockspur handle is simple in design and commonly used on older timber and some uPVC windows.

• Surface-mounted: screws visible on the face of the sash
• Direct action: rotates and locks the spur into the frame keeps
• Suitable for inward and outward-opening casements, depending on profile
• Often available keyed or non-keyed for added security options

What is an espag handle and why is it different?

An espag handle operates a multi-point espagnolette locking mechanism inside the window. Turning the handle drives a spindle that runs into the locking gearbox; this activates locking points along the edge of the sash. The espag handle is normally paired with a morticed gearbox and concealed mechanism, providing a cleaner look and stronger security than a cockspur handle.

• Concealed operation: gearbox and mechanism fitted into the profile
• Multi-point locking: hooks, bolts or rollers engage with keeps
• Common on modern uPVC and aluminium windows
• Usually supplied with a spindle and fixings to suit the window thickness

Key differences: security, appearance and suitability

Understanding the practical differences helps when advising customers on replacements or specifying for new builds.

• Security: The espag handle with its multi-point locking offers superior resistance to forced entry. A cockspur handle provides basic security; keyed versions improve this but do not match espagnolette performance.
• Appearance: Cockspur handle is surface-mounted and visible; espag handle has a neater, integrated finish suitable for contemporary windows.
• Compatibility: Cockspur handle is often easier to retrofit into older timber and some uPVC frames. Espag handle requires matching to the existing espagnolette mechanism and correct spindle length.
• Cost and installation: Cockspur handle is typically cheaper and quicker to fit. Espag handle installation may require morticing or gearbox replacement; labour and parts cost are higher but deliver better long-term performance.

When to choose a cockspur handle: trade guidance

Tradespeople will often specify a cockspur handle for certain jobs. Consider the following factors:

1. 1Existing hardware: If replacing like-for-like on an older timber casement, a cockspur handle reduces modification to the frame.
2. 2Budget constraints: For low-cost refurbishments or temporary solutions, the cockspur handle offers an economical option.
3. 3Minimal alteration: When you cannot or do not want to alter the window profile, a cockspur handle fits to the face and avoids cutting into the sash.
4. 4Secondary windows: For low-risk, hard-to-reach or internal windows, a cockspur handle is often adequate.

Fitting, measurements and common installation tips

Correct fitting avoids leaks, poor operation and security compromises. Whether fitting a cockspur handle or converting to an espag handle, follow these practical steps:

• Measure backset: For espag fittings measure the spindle projection and centre-line of the gearbox. For a cockspur handle check screw centres and spur projection.
• Check sash thickness: Handles and spindles must match the sash depth for smooth operation.
• Use correct fixings: Stainless steel or security screws prevent corrosion and tampering when fitting a cockspur handle outdoors.
• Seal screw holes: Where replacing hardware, seal any exposed holes to prevent water ingress into the timber or cavity.
• Test operation: Operate the handle through its full movement; make sure keeps line up and that locking points engage without binding.

Maintenance and troubleshooting

Both handle types benefit from periodic checks, but the cockspur handle needs slightly different attention because of its exposed parts.

• Lubrication: Apply a light grease or silicone spray to moving parts annually; espag gearboxes may need a specialist lubricant.
• Tighten fixings: Surface screws on a cockspur handle can work loose; check and tighten quarterly on frequently used windows.
• Replace worn spurs or keeps: If the cockspur handle spur or frame keeps are deformed, replace them to restore secure locking.
• Keyed locks: If a keyed cockspur handle becomes stiff, do not force the key; lubricate or replace the lock barrel to avoid breakage.

Conclusion: Choosing between a cockspur handle and an espag handle depends on security requirements, budget, and whether you want a surface-mounted or concealed system. For heritage or minimal intervention projects a cockspur handle remains a practical, cost-effective solution; for modern installations where security and aesthetics matter, an espag handle with a multi-point mechanism is the better long-term choice. Tradespeople should measure carefully, use the correct fixings and offer customers clear options based on these contrasts.

Recommended Products

Based on this article, you may find these products helpful:

• TSS Cockspur Window Handles
• TSS Offset UPVC Window Handles
• ERA Universal Inline Window Handle
• In-Line Window Handle - White
• ERAB Espagnolette Window Lock Universal Lock Replacement