Replacement uPVC Window Handles: FAQs on Fit and Returns

Replacement upvc window handles are a frequent requirement for both homeowners and tradespeople maintaining or upgrading windows. This article provides clear, practical guidance on choosing the correct handle, measuring for a reliable fit, basic fitting steps, common troubleshooting, and best practice for returns. The aim is to reduce wasted time and avoid unnecessary returns by equipping readers with the knowledge to get the right part first time.

Compatibility and what to measure first

Knowing which handle fits is largely a matter of identifying the type, the fixing arrangement and a few key dimensions. The most common handle types for uPVC windows are espagnolette (espag) handles, cockspur handles and lever/locking handles.

Essential measurements and checks:

• Centre-to-centre screw distance (screw centres). Measure between the centres of the two fixing screws on the handle base plate.
• Spindle length and thickness. Remove the handle and measure the spindle from the face of the window frame to the end. Typical spindle sizes are 7mm square, but confirm thickness and length against the replacement.
• Handing and orientation. Note whether the handle is for a left- or right-hand opening (viewed from inside) and if the handle turns upwards or downwards to lock.
• Backset and keeper engagement. Ensure the handle’s gearbox aligns with the window’s locking striker or espagnolette gear.

Tradespeople will already be familiar with some of these, but taking precise measurements and photos before ordering is invaluable for homeowners too. For an espag-style replacement consider the TSS Cockspur Window Handles as an example of a robust option with clear technical specifications.

Identifying handle type and fixings

Distinguishing between a cockspur and an espag handle is fundamental. Cockspur handles have a short curved hook that grips the frame; they usually fix to the frame with visible screws. Espag handles operate a multi-point espagnolette mechanism inside the sash using a square spindle and sometimes a gearbox with screw fixings.

A classic, economical cockspur option is the TSS Cockspur Window Handle. For lever-lock styles commonly used on more modern double-glazed windows, consider reputable branded handles such as the TSS Offset UPVC Window Handles, which is designed to meet security standards and often features a lock cylinder.

Step-by-step fitting guide

This covers a basic swap of a like-for-like handle. For complex replacements involving different handle types, additional modifications or a professional fitter may be required.

1. Gather tools: cross-head screwdriver, flat blade, tape measure, pencil, replacement handle and any fixing screws provided. 2. Remove the old handle: unlock the handle, unscrew the fixing screws, slide off the handle and withdraw the spindle carefully. 3. Check existing hardware: measure spindle length, screw centres and note orientation. Clean the area and check the condition of the screw holes. 4. Fit the new handle: align the spindle into the mechanism, position the handle plate so screw centres match the holes, and fit screws hand-tight first to ensure alignment. 5. Test operation: cycle the handle through full travel and check the locking engagement and keeps. Tighten screws firmly but avoid over-torquing plastic components. 6. Final checks: confirm weatherseal and frame integrity, and ensure the handle locks and unlocks smoothly with any supplied keys.

Tradespeople should keep a small stock of common spindle lengths and handles to avoid multiple site visits. Homeowners benefit from photographing the old handle and the window frame before ordering to match dimensions accurately.

Common fitting problems and troubleshooting

• Handle is loose after fitting: likely due to stripped screw threads or oversized holes. Solutions include using slightly larger diameter screws or a suitable plastic/metal insert.
• Handle cannot engage lock fully: check spindle length; too short will not operate the gearbox, too long may prevent seating. Adjust spindle if reversible types are used, or obtain correct length.
• Wrong screw centres: the handle base won’t line up. This usually requires the correct model with matching screw centres; avoid forcing new holes near seals.
• Handle sticks or is stiff: lubricate the gearbox and espag mechanism with a light machine oil and check for obstructions or frame distortion.

Provide photographic evidence when seeking technical support from suppliers; a clear picture of the back of the old handle with measurements speeds up accurate parts identification.

Returns, exchanges and packaging tips

Returns are a common part of purchasing replacement parts. Minimising return risk and ensuring a smooth exchange requires following best practice.

• Check the supplier’s returns policy before ordering, noting the returns window and any restocking fees.
• Retain original packaging and all components, keys and fixings. Items must usually be returned in their original condition to qualify for a full refund.
• Photograph the item and the packaging when packing for return; this helps with disputes over condition on arrival.
• Use tracked postage for returns and keep the receipt and tracking number. High-value items or trade orders may require signature on delivery.
• For bespoke or non-standard items, check whether the item is non-returnable; ordered-to-measure or specially coded handles are often final sale.

Tradespeople ordering for multiple sites should order a single reference sample first where feasible. Homeowners buying a single handle should verify measurement data and match photos to product pages to reduce the likelihood of return.

Related Reading

Explore more guides on related topics:

• Window Stay Maintenance: Keeping Your Hardware Working
• Egress Hinge

Summary and further reading

Replacing uPVC window handles need not be daunting when measurements and type are checked carefully before ordering. Accurate spindle measurement, screw centres and confirming handle type will save time and avoid returns. For further guidance on selecting the right handle, technical specifications and troubleshooting, consult the comprehensive Window Handles Guide.