Short answer: A key that has to be jiggled, wiggled, or forced is a lock telling you something is wrong. Learning to read those symptoms lets you fix the small problem now instead of standing at your own door in the dark later. Here is how to tell worn keys from worn locks, and when a fix beats a replacement.
A key that has to be jiggled, wiggled, or forced is a lock telling you something is wrong. Learning to read those symptoms lets you fix the small problem now instead of standing at your own door in the dark later. Here is how to tell worn keys from worn locks, and when a fix beats a replacement.
Before blaming the cylinder, examine the key, because it is often the cheaper culprit. Keys wear down with daily use, and a copy made from another copy can be slightly off from the original cut, so the pins inside never quite line up and you compensate by jiggling. Look for visible wear, rounding, or bent spots along the key's teeth, and try a different copy or the original if you have one. If a fresh, accurately cut key made from your best original turns smoothly while your everyday key fights you, the key was the problem, and replacing a worn key is far less involved than servicing a lock. This is also why cutting new copies from a known-good original, rather than from a worn daily key, saves you grief down the line.
If good keys still stick, the mechanism is likely the issue. Grit, dried old lubricant, and corrosion can foul the keyway, while years of use wear the internal pins and springs so the cylinder no longer turns crisply. Try cleaning first: a dry graphite or PTFE lock lubricant applied into the keyway, worked in with a few turns of the key, clears many sticky cylinders without any disassembly. Avoid forcing a stubborn lock or turning hard against resistance, because a key snapped off inside a cylinder turns a minor annoyance into an urgent, costlier job. If cleaning and lubrication do not restore a smooth turn, the internal wear has likely progressed to where the cylinder needs professional attention rather than another dose of lubricant.
Once you know the lock needs service, the right answer depends on why. Rekeying changes the internal pin configuration so old keys no longer work, and it is the sensible, economical choice when the lock body is still solid but you have lost keys, moved into a home with unknown key holders, or simply want fresh control over who has access; rekeying a cylinder commonly falls in the range of roughly $15 to $40 per cylinder plus a service call, though your locksmith's quote depends on the hardware and job. Full replacement makes more sense when the lock is corroded, physically damaged, genuinely worn out, or you want to upgrade to sturdier hardware, in which case you are paying for the new lock plus installation. When you are unsure, describe the exact symptoms to a verifiable local locksmith and ask which path they recommend and why, and be cautious of anyone who jumps straight to replacing everything without diagnosing the actual wear.
Before blaming the cylinder, examine the key, because it is often the cheaper culprit. Keys wear down with daily use, and a copy made from another copy can be slightly off from the original cut, so the pins inside never quite line up and you compensate by jiggling. Look for visible wear, rounding, or bent spots along the key's teeth, and try a different copy or the original if you have one. If a fresh, accurately cut key made from your best original turns smoothly while your everyday key fights you, the key was the problem, and replacing a worn key is far less involved than servicing a lock. This is also why cutting new copies from a known-good original, rather than from a worn daily key, saves you grief down the line.
If good keys still stick, the mechanism is likely the issue. Grit, dried old lubricant, and corrosion can foul the keyway, while years of use wear the internal pins and springs so the cylinder no longer turns crisply. Try cleaning first: a dry graphite or PTFE lock lubricant applied into the keyway, worked in with a few turns of the key, clears many sticky cylinders without any disassembly. Avoid forcing a stubborn lock or turning hard against resistance, because a key snapped off inside a cylinder turns a minor annoyance into an urgent, costlier job. If cleaning and lubrication do not restore a smooth turn, the internal wear has likely progressed to where the cylinder needs professional attention rather than another dose of lubricant.
Once you know the lock needs service, the right answer depends on why. Rekeying changes the internal pin configuration so old keys no longer work, and it is the sensible, economical choice when the lock body is still solid but you have lost keys, moved into a home with unknown key holders, or simply want fresh control over who has access; rekeying a cylinder commonly falls in the range of roughly $15 to $40 per cylinder plus a service call, though your locksmith's quote depends on the hardware and job. Full replacement makes more sense when the lock is corroded, physically damaged, genuinely worn out, or you want to upgrade to sturdier hardware, in which case you are paying for the new lock plus installation. When you are unsure, describe the exact symptoms to a verifiable local locksmith and ask which path they recommend and why, and be cautious of anyone who jumps straight to replacing everything without diagnosing the actual wear.
Call (650) 489-0999 and describe the situation, your exact location, and what you need. Timing is confirmed on that call rather than promised in advance.
Call for help: (650) 489-0999 — a straight answer and an honest estimate before any work begins.