Snapped Key in a Lock | A Real Call-Out, and What to Do If It's Yours

Half eight on a frosty Tuesday, I got a call from a chap in Old Basing. He'd done what we all do when a lock's stiff in the cold: gripped harder and given it a proper turn. The key gave with a dull little snap. Bow in his hand, the rest of it sitting in the cylinder, and the door locked shut with him on the wrong side of it.

That's a textbook snapped-key job, and there's a right way and a wrong way to be standing there when I pull up.

What I found

The cylinder was an early-2000s Avocet, the sort that came as standard on a lot of the doors round there. Worn, dry, never lubricated in twenty years. The key had snapped clean at the cam line, the weakest point, and the broken half had dropped just below the face of the keyway. Nothing to grip.

To his credit, he'd done the one thing that matters: he stopped. He hadn't poked at it with a screwdriver, hadn't glued anything, hadn't tried to drill it. So I had a clean job to work with, not a keyway full of swarf and superglue.

What I did

A puff of dry lubricant into the keyway, then a proper key extractor, a thin sliver of steel that hooks into the cuts on the broken half and draws it straight out. It came in one piece in about a minute.

Then the real decision. The cylinder was tired and snappable, and the key had only broken because the lock was binding. Swapping like-for-like would have left him in the same spot by spring. So we fitted a 3-star anti-snap cylinder instead, cut two keys, checked the door alignment, and worked some dry lube through it. Twenty-five minutes, door to van.

The after: a door that locks smoothly, a cylinder that resists the most common break-in going, and no repeat of the morning he'd just had.

If it's your key in the lock right now

The whole job hinges on what you do in the first minute.

• Don't push the broken end deeper. The instinct to "get the bow to grip again" wedges it in and turns a simple extraction into a drill-out.
• Don't glue it. Glued to the pins, the cylinder's scrap.
• Don't go in with tweezers or a paperclip unless the piece is clearly proud and comes on a light, straight pull. Twisting snaps off more.
• Do take the weight off a uPVC door by lifting the handle, and leave the rest to someone with an extractor.

The difference between a £85 extraction and a £180 cylinder replacement is usually whatever you did before help arrived.

The bit worth hearing

A key almost never snaps out of nowhere. It snaps because the lock was binding and you'd been forcing it for weeks. If a lock anywhere in your house has gone stiff, that's the call to make now, calm, in daylight, cheap, rather than the one you make from the doorstep in the frost.

If you've snapped one today and need it out, ring the office. Most snapped-key calls across Basingstoke and the RG postcodes are sorted inside half an hour of me arriving, with the rate and a parts estimate given before I set off.