Window Hinge and Handle Problems

Why casement windows drop, stick or won't close flush, and what a proper repair involves.

Most 'broken window' calls are actually hardware calls. Friction hinges, espagnolette gearboxes and handles wear out long before frames and glass do.

This guide describes the symptoms we see most, what causes each, and when hardware repair stops being the sensible route.

Matching symptom to cause

The pattern is fairly consistent:

Handle turns but nothing engages — worn or failed gearbox in the locking mechanism.
Sash drops and catches on the frame — worn friction hinges losing their set.
Window won't pull in flush — hinge adjustment, keep alignment, or a distorted sash.
Stiff operation that worsens in cold weather — lack of lubrication, or debris in the hinge track.
Snapped handle spindle — usually forced against a mechanism that had already failed.

Repairs that hold, and repairs that don't

Replacing hinges, gearboxes, keeps and handles with correctly sized parts is a durable repair — these are wear items and renewing them restores the window.

What doesn't hold is adjusting around a distorted sash or a frame that has moved. If the geometry is wrong, the hardware will keep failing.

Simple maintenance that prevents most of it

Twice a year, clean the hinge tracks, lubricate hinges and locking points with a suitable lubricant, and check that handles operate without force. Most premature hardware failures we attend were avoidable.

Get the hardware looked at

Tell us what the window does when you turn the handle and we'll bring the likely parts to survey.

Frequently asked questions

Can you match old hardware?

Usually. Hinges and gearboxes come in standard sizes and we identify the part on survey rather than guessing.

Is it worth repairing an old window?

If the frame and glass are sound, yes — hardware repair is far cheaper than replacement. We'll say so if that's the case.

My window won't lock at all — is that urgent?

Treat it as a security issue and get it looked at promptly. In the meantime, avoid forcing the handle, which usually makes the repair bigger.

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