How to get a snapped key out of a lock depends on one thing: whether any part of the key is still showing. If a stub is protruding from the keyway, you may be able to draw it straight out. If nothing is visible - or the key snapped while it was mid-turn - stop. What you do in the next few minutes decides whether this stays a simple key job or becomes a new cylinder.
A broken key in a lock is not automatically a crisis. The wrong response to it often is.
First, work out what you are dealing with
Three questions change your options. Is any part of the key still protruding from the keyway? Was the lock left locked or unlocked when the key snapped? And did the key break while you were turning it, or before any rotation?
A key that snapped on insertion, with a stub still visible and the lock not mid-turn, is the most recoverable situation. One that broke mid-turn is harder, because the broken section may be held at an angle inside the cylinder. The stub's position inside the cylinder is what determines whether it can come out the way it went in.
Answering these three questions before you touch anything takes ten seconds and can stop you making the situation harder than it needs to be.
What you can safely try
This only applies where a stub is still protruding from the keyway. If nothing is visible, skip ahead.
Grip the flat of the stub with fine needle-nose pliers. Pull straight out - no twisting, no rocking. One or two attempts only. If it moves, keep the tension steady and draw it out along the same line. If it does not move, stop. Repeated pulling burrs the metal edges of the stub and makes the extraction harder for whoever comes next.
A purpose-made broken-key extractor is what a locksmith reaches for when pliers will not do it. It enters the keyway and hooks or draws the broken section out along the correct path. It is a real tool, designed specifically for this - not a trick. Improvising with a pin or a piece of wire is more likely to push the key deeper than to pull it out.
What makes it worse
Most of the additional damage comes from what gets attempted after the snap rather than from the snap itself.
Superglue or hot glue on the stub is a commonly suggested fix. Do not do it. Glue rarely bonds reliably to the end of a key in a confined metal space, and it contaminates the cylinder in a way that can turn a job requiring an extractor into one requiring a new cylinder. Glue in a lock is a worse situation than a snapped key on its own.
Poking with a paperclip or a pin almost always pushes the broken section deeper. The keyway is designed to guide a key inward, not to give random objects purchase on a piece of broken metal.
Continuing to work the lock generates friction against the broken section. If the key snapped mid-turn with the cam partly rotated, further force can wedge the stub harder against the cylinder wall.
Drilling destroys the cylinder. It is a last resort - appropriate only after extraction has genuinely failed, not instead of it.
One framing that helps: a snapped key is an extraction problem, not a friction problem. Lubricant will not pull metal out of a cylinder.
When nothing is protruding
If there is no visible stub - the key broke flush with the keyway or snapped inside the cylinder - this is a locksmith job. There is no safe DIY route from here.
What the work involves: a broken-key extractor reaches into the keyway and grips or hooks the broken section from the side or the tip, then draws it out along the path it entered. Done correctly, the cylinder takes no more stress than a normal key exit, and in many cases it remains serviceable once the key is out.
One thing worth knowing before anyone panics and forces a door: a key that snapped flush with the lock already locked means the lock is still locked. One that snapped while unlocked means it is still unlocked. You are not necessarily locked out. Check whether the door opens from the inside, or whether a spare key still works the lock, before escalating.
Snapped car keys and ignition barrels
A key snapped in a car door or an ignition barrel is a different job from a house lock, with extra steps that a domestic extraction does not require.
Car cylinders are smaller with tighter tolerances. More significantly, on many vehicles the key carries a transponder chip that communicates with the immobiliser. If a car key snapped in an ignition or door, extraction removes the metal - but a replacement key still needs to be cut and programmed to the vehicle before it will start or lock correctly. Broken key extraction is only part of the job.
There is also a diagnostic point specific to ignition snaps. A key that breaks in an ignition is sometimes a symptom of a worn barrel rather than a one-off event. The barrel has worn to the point where the key binds under load rather than turning cleanly, and the key breaks under the resistance. If the barrel is the underlying cause, extraction alone does not fix it. Our auto locksmith service covers the extraction and the key programming that follows. Where the barrel itself needs attention, ignition barrel repair is the separate part of the job.
Will the lock need replacing?
Sometimes yes, sometimes no - and it depends on where the key broke and on what was tried before anyone calls.
Extraction done cleanly on a cylinder that was otherwise sound often leaves it serviceable. The cylinder does not distinguish between a clean extraction exit and a normal key exit. What affects the outcome is everything listed above: glue, repeated failed pulling, and grinding the stub against the cylinder walls all leave damage that extraction cannot undo. The earlier a locksmith is called, the simpler the job tends to be.
There is also an honest question about why the key snapped. A key that breaks in a smooth, well-maintained lock is usually a key problem - worn metal, or a key that has been cut from a copy of a copy. A key that snapped in a lock that was already stiff or difficult to turn is the lock showing a fault. Replacing the key without addressing the lock will produce the same result next time.
If the lock does need attention, that might mean broken door lock repair or a full lock change. For uPVC door locks, the cylinder is the relevant component rather than the lock body. And if a replacement needs to meet your insurer's requirements, our guide to BS3621 covers what they typically look for.
Getting a snapped key removed in Nottingham
Autelix operates across Nottingham as a mobile service. We come to the property or the vehicle - there is no need to remove or transport anything.
Whether it is a domestic door or a vehicle, get in touch. As an emergency locksmith in Nottingham, broken key extraction is one of the more routine jobs we take.
Frequently asked questions
Published: 14th August, 2026 | Updated: 14th August, 2026