Best Window Handles for uPVC Windows: Espag vs Cockspur

Homeowners and tradespeople choosing window handles for upvc windows need to balance security, ease of use and compatibility with existing hardware. This guide compares espag (espagnolette) and cockspur handles, explains how to measure and fit replacements, and offers practical advice on selecting the right handle for durability and security.

Espag vs cockspur: design and suitability

Espag handles operate a multi-point espagnolette lock by turning the handle through 90 degrees to engage locking bolts or mushroom cams along a metal locking strip. They are commonly used on modern casement and tilt-and-turn upvc windows where a secure, multipoint locking system is fitted. An example of a modern, secure option is the TSS Cockspur Window Handles, which pairs a robust mechanism with slimline styling suitable for contemporary frames.

Cockspur handles are surface-mounted and operate a single latch or locking plate on the window frame by levering the handle inwards. They are typically found on older upvc installations or simple casement windows where a multi-point lock is not present. The TSS Cockspur Window Handle is a widely used choice for this application, providing reliable operation and straightforward fitting.

Key suitability points:

• Espag handles are best for windows with espagnolette locking mechanisms and where security is a priority.
• Cockspur handles suit simpler locking systems and are often the economical choice for older or secondary windows.
• Trade jobs replacing multiple handles benefit from standardising on one type where the locking mechanism allows.

Measuring and checking compatibility

Before ordering replacement window handles for upvc windows, measure and inspect the existing hardware to ensure compatibility and avoid returns.

Espag handle checks:

• Backset: measure from the spindle centre to the edge of the handle’s mounting plate (often 16mm, 20mm or 22mm).
• Spindle size: most espag handles use a square spindle—measure the width (usually 7mm or 8mm).
• Screw centres: measure the distance between fixing screws on the handle base.
• Locking mechanism: confirm the existing espagnolette strip and the length/position of locking cams to ensure the new handle will operate them correctly.

Cockspur handle checks:

• Mounting holes: measure the vertical distance between the fixing holes.
• Linkage length: measure from the handle pivot to the latch engagement point if a connecting arm is used.
• Frame clearance: ensure the handle will not foul the window frame or be obstructed by beading.

Tradespeople should keep a small kit of common spindle sizes and backsets, and a selection of both right- and left-handed handles to reduce site delays.

Security considerations

Security is a major factor in choosing window handles for upvc windows. Espag handles with multi-point locking provide significantly better resistance to forced entry than single-point cockspur latches. Key features to look for:

• Lockability: keyed espag handles add an extra layer of theft prevention for ground-floor or accessible windows.
• Anti-snap or anti-tamper designs: look for handles with reinforced spindles and secure fixings.
• Certification: where required, specify handles that meet relevant British standards.

The TSS Offset UPVC Window Handles offers a balance of security and price and is suitable where a recognised brand and proven durability are preferred.

Practical fitting tips

Fitting replacement handles on upvc windows is straightforward with the right preparation. Follow these practical steps:

• Safety first: place the window in the open position supported safely. Wear eye protection when drilling.
• Remove the old handle: unscrew all fixings, withdraw the spindle and note any wear on the spindle or lock faceplate.
• Clean and inspect: check the faceplate, espagnolette strip or latch for damage. Replace any worn locking components at the same time as the handle to ensure smooth operation.
• Trial fit: insert the spindle and loosely fix the new handle. Operate the mechanism to confirm correct engagement of locking points before tightening fixings fully.
• Use threadlocker where appropriate on screws that may loosen with vibration, but avoid over-tightening in upvc to prevent cracking.

For espag handles, ensure the spindle length is not too long—cutting it to size may be necessary for a neat fit. For cockspur handles, confirm the handle returns fully to the closed position without catching on the frame.

Maintenance and troubleshooting

Regular maintenance prolongs life and prevents common problems with window handles for upvc windows.

• Lubrication: apply a light machine oil or silicone spray to moving parts once a year—avoid heavy greases that attract dirt.
• Tightening: check fixings annually and tighten as necessary, taking care not to overtighten into upvc.
• Alignment: if the handle feels stiff or does not fully lock, check frame alignment and sash adjustment; minor misalignment can be corrected by adjusting hinge screws.
• Replacement intervals: high-use handles may need replacing every 5–10 years depending on use and exposure.

Common issues and quick fixes:

• Sloppy handle: often caused by wear to the spindle or the handle bushes; replace the handle and spindle if play remains.
• Handle won’t lock: check the locking strip for bent cams or broken rollers; replacing the espagnolette strip may be necessary.
• Stiff operation: clean out grit in the mechanism and lubricate; if stiffness persists, inspect for corrosion or internal damage.

Choosing finishes and handedness

Select a finish that matches existing hardware and the window profile. White and grey remain popular for upvc frames, while satin chrome and black are common for contemporary windows. Ensure the handle is the correct handedness (left or right) corresponding to hinge placement and the direction of opening; most product listings specify handedness.

Summary

Selecting the right window handles for upvc windows depends on the locking system, security requirements and aesthetic preferences. Espag handles provide superior security and are the standard for modern multipoint locks, while cockspur handles are suitable for simpler installations and budget-conscious projects. Practical measuring, fitting and maintenance practices will ensure long-term performance and homeowner satisfaction.

Window Handles Guide