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Espag Handle vs Cockspur Handle: Which Is Better?

Choosing the right window handle is a small decision that has big consequences for security, operation and appearance. Two common options for casement and tilt-and-turn windows are the espag handle an...

27 January 2026
5 min read

Choosing the right window handle is a small decision that has big consequences for security, operation and appearance. Two common options for casement and tilt-and-turn windows are the espag handle and the cockspur handle. This guide explains the practical differences, installation considerations and trade tips so you can decide which solution suits a particular project: retrofit, new build or repair.

What is an espag handle?

An espag handle is the standard for modern casement windows, especially on uPVC and timber profiles. The term refers to the espagnolette locking mechanism: turning the handle drives a gearbox which operates a steel multi-point rod or shootbolt system inside the frame. Espag handles are usually fitted with a square spindle and two through-fix screws; many are lockable and can be fitted with various backset options and spindle lengths to suit different profiles.

What is a cockspur handle?

A cockspur handle is a surface-mounted handle that bears directly against the window frame. It operates a simple cam or hook and is held closed by the lip on the handle engaging the frame. Cockspur handles are popular on older timber and metal windows and are often used for quick, low-cost replacements. They are straightforward to fit; the handle screws onto the frame and the operation is visible on the outside.

Security and performance: espag handle vs cockspur handle

Security and weather performance are the primary concerns for trade customers and conscientious DIYers. Compare the two:

  • Security: The espag handle connects to a multi-point locking system; when locked it secures the sash at several points, resisting levering and forced entry. Many espag handle models are supplied with locking cylinders or key locks for added protection. Cockspur handles rely on a single surface contact and are easier to compromise by forcing the handle or levering the frame.
  • Weather-tightness: An espag handle operating an espagnolette provides even compression along the sealing gasket; this improves draught-proofing and reduces water ingress. Cockspur handles provide less compression so seals may not be as effective, especially on large or warped sashes.
  • Standards and certification: For refurbishment projects requiring compliance with Approved Document Q or PAS 24, espag handles combined with multi-point locking are typically the preferred option. Cockspur handles rarely meet higher security requirements without additional hardware.

Installation and compatibility

From a tradesperson’s perspective, ease of installation and compatibility with existing frames matter. Key points to consider:

  • Fixing method: Espag handle fitment uses a 7mm or 8mm square spindle and two screws through the handle into the sash; the handle connects to an internal gearbox that links to locking rods. Cockspur handles screw directly onto the frame; no internal gearbox is needed.
  • Profile compatibility: Espag handles are designed to work with modern uPVC and timber profiles with appropriate keeps and lock rods. Cockspur handles suit older timber and metal frames where retrofitting a multi-point system is impractical.
  • Removal and replacement: Replacing a cockspur handle is quick and cheap; swapping to an espag handle may require routing or modifying the sash to accept a spindle and gearbox, and installing keeps in the frame for the locking points.

Maintenance, durability and cost

Budget and lifecycle costs are often decisive for installers and specifiers:

  • Durability: Espag handle mechanisms, when correctly specified with stainless steel gearbox components and anti-corrosion finishes, last longer in coastal or high-humidity environments. Cockspur handles are simpler and may corrode faster if inexpensive materials are used.
  • Maintenance: Espag handle systems can be serviced: gearbox lubricants, adjusting keep heights and replacing rods are routine tasks. Cockspur handles usually require only replacement when worn.
  • Initial cost: Cockspur handles are cheaper to buy and quicker to fit; espag handle assemblies and associated multi-point hardware cost more and take longer to install, but provide better value over time for security and performance.

Selecting the right espag handle for each job

When you choose an espag handle, consider these trade-focused details:

  1. Spindle size and length: measure the existing spindle or sash thickness to choose the correct square spindle length.
  2. Backset and gearbox orientation: ensure the handle lines up with the internal locking rod; 20mm and 22mm backsets are common.
  3. Locking options: decide between non-locking handles, push-button locks or keyed-lock models for access control.
  4. Finish and corrosion resistance: specify finishes suitable for the environment; stainless steel or nickel-plate for coastal sites.
  5. Compliance: choose espag handle combinations that meet Secured by Design or PAS 24 requirements where needed.

Practical trade tips for installation

  • Always check the sash and frame alignment before fitting; misalignment shortens handle and gearbox life.
  • When upgrading from a cockspur to an espag handle – plan for routing and retrofitting keeps; confirm multi-point rod lengths and adaptor plates.
  • Use the correct torque when tightening handle screws; over-tightening can distort the gearbox housing or jam the spindle.
  • Stock common spindle sizes and locking variants on your van: this reduces revisits and speeds up service calls.
  • For trade customers working with heritage properties: consider matching sightlines and finishes to maintain period aesthetics while improving security with discreet espag systems.

Conclusion: For modern windows where security, weather performance and compliance are priorities, an espag handle is usually the better choice. It offers multi-point locking, greater durability and a professional finish that tradespeople and discerning DIYers prefer. Cockspur handles remain useful for low-cost repairs, older frames and quick fixes, but they rarely match the security or sealing performance of an espag handle. Select an espag handle specified for the profile, environment and compliance needs to get the best long-term result.

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