Window Handles for Double Glazed Windows: FAQs

Choosing the right window handle affects security, ease of use and the appearance of double glazed windows. This FAQ-style guide covers the most common concerns homeowners and tradespeople have about window handles for double glazed windows, with practical advice on selection, installation, maintenance and compliance.

What types of handles suit double glazed windows?

Common types include espag (espagnolette) handles, cockspur handles, and tilt-and-turn handles. Espag handles operate a multi-point locking mechanism and are popular on PVCu and aluminium windows for secure, flush operation. A reliable example is the TSS Cockspur Window Handles, designed for robust engagement with espagnolette gearboxes. Cockspur handles are surface-mounted and often used on older or simpler frames; the TSS Cockspur Window Handle is a practical option where retrofit or traditional styling is required. For modern hardware with a smooth aesthetic and ergonomic action, consider handles like the TSS Offset UPVC Window Handles.

How to choose the right handle for security and locking

Select handles rated for the locking requirement of the property. For ground-floor rooms or accessible windows, choose handles with a key lock or a high-security sprung locking mechanism that integrates with multipoint espagnolette systems. Verify the handle’s spindle length and screw positions match the existing gearbox or keep for new installations. For new-builds or replacements on windows with multi-point locks, espag handles are generally the best match due to their direct compatibility with espagnolette rods.

Actionable steps:

• Measure the spindle length from the handle base to the centre of the gearbox; common spindles are 35mm, 45mm and 60mm.
• Check screw-hole centres on the handle rose or base plate and compare to the existing fixings.
• Choose key-locking handles for higher-security locations; non-locking handles suffice for internal windows or those out of reach.

What about safety and childproofing?

For child safety on first-floor windows or where children are present, install handles with a thumb-turn that can be locked, or fit restrictors alongside keyed handles. Consider handles with a built-in arrestor to prevent full opening. Where escape in an emergency is needed, ensure one operable window remains accessible with a quick-release restrictor or a child-safe handle that can be unlocked rapidly from inside.

Actionable steps:

• Fit at least one easy-open window for emergency escape that still complies with child-safety planning.
• Use key-locking handles on less-accessible windows and quick-release devices on escape routes.
• Test operation after installation to confirm the handle locks and releases reliably under everyday conditions.

Installation and compatibility tips for tradespeople

Proper installation ensures longevity and correct operation. Remove the old handle and inspect the gearbox or spindle for wear. Replace worn spindles or gears to avoid poor engagement. Confirm right- or left-handed operation before ordering handed handles.

Practical checklist:

• Align the handle so it reaches the closed position without binding or excessive play.
• Use stainless steel screws to avoid corrosion, particularly in coastal locations.
• Ensure the handle backplate sits flush against the frame; use packing washers if the frame face is uneven.
• Torque fixings to manufacturer guidance to avoid stripping plastic frames.

Maintenance and troubleshooting

Regular maintenance prolongs handle life and preserves security. Simple upkeep prevents noisy operation and sticking.

Maintenance routine:

• Clean handles with a mild detergent and soft cloth; avoid abrasive cleaners or solvents that harm finishes.
• Apply a small amount of machine oil or silicone spray to the spindle and moving parts yearly; wipe off excess.
• Tighten loose screws promptly to prevent wobble and wear.
• For stiff handles, check the espagnolette mechanism for debris or misalignment before replacing the handle.

Troubleshooting quick fixes:

• Handle rotates without moving the lock: replace worn spindle or gearbox drive.
• Handle stuck in position: check for foreign objects in the keep or rebate; lubricate and test.
• Handle loose on the frame: remove and inspect fixings, replace stripped screw holes with appropriate frame fixings.

Aesthetic and finish considerations

Match handle finish to window furniture and room décor. White and grey finishes suit contemporary PVCu frames, while chrome, satin chrome or black can complement aluminium or timber frames. For heritage properties, choose traditional shapes and finishes that respect period appearance while meeting modern security standards.

Actionable guidance:

• Order one sample handle to compare finish and ergonomics before batch replacement.
• Use the same manufacturer for multiple windows to ensure consistent spindle and screw dimensions.

Regulations and standards

Handles must comply with UK building regulations concerning escape windows and security standards such as PAS 24 for doors and windows where specified in contracts or insurance requirements. For rented properties, landlords must supply secure, lockable windows; trade installations should record the chosen hardware and keep certificates where relevant.

Final selection advice

Prioritise compatibility with the window’s locking mechanism, appropriate security level for the installation location, and ease of maintenance. Tradespeople should confirm measurements and handedness on site before ordering. Homeowners benefit from selecting key-locking or high-security handles for vulnerable ground-floor openings and matching style/finish to frame material.

Further reading and detailed product selection guidance are available in the comprehensive Window Handles Guide.

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