Short answer: A lock that gets a little harder to turn every week is warning you about something — and if you ignore it, you'll eventually be standing outside with a key that won't budge. Here's how to read the symptoms before that happens.
A lock that gets a little harder to turn every week is warning you about something — and if you ignore it, you'll eventually be standing outside with a key that won't budge. Here's how to read the symptoms before that happens.
Stiff locks aren't all the same problem, and the fix depends entirely on where the resistance lives. If the key is hard to slide in and out, the culprit is usually grit inside the keyway or a worn key — the internal mechanism is likely fine. If the key goes in smoothly and turns, but the deadbolt won't fully throw or the door has to be lifted or shoved to lock, the issue is almost always outside the lock: a misaligned strike plate, a sagging door, or a swollen frame, not the cylinder itself. If the whole lock body wiggles or the cylinder feels loose in the door, the mounting screws have worked loose. And if it only sticks in deep summer humidity or a hard freeze, you're seeing the door and frame expand and contract with the weather. Naming the symptom first saves you from 'fixing' the wrong thing.
For a cylinder that's dry or gritty, use a lock-specific dry lubricant such as a PTFE (Teflon-based) spray or powdered graphite, work the key in and out a few times, and wipe away the excess. The product to avoid inside a lock is common oil-based spray lubricant: it frees things up for a day or two, then attracts dust and grime and gums the mechanism worse than before. When the bolt won't throw cleanly, the real fix is usually alignment — check whether the bolt lines up with the hole in the strike plate, tighten loose hinge screws that let a heavy door droop, and adjust or reposition the strike plate so the bolt slides home without being forced. It's also worth testing with a freshly cut key, since a worn key can make a perfectly healthy lock feel like it's failing.
Cleaning, lubricating, and strike adjustment solve a lot of sticky locks, but some symptoms mean the mechanism itself is wearing out. Internal pins and springs degrade over years of use, and a cylinder that binds even after cleaning is often past the point of a home fix. Treat a deadbolt that no longer fully extends as a security issue, not a nuisance — a bolt that only throws halfway can be pushed back with surprisingly little force. A locksmith can rekey the lock (keeping the hardware but resetting the internals to a new key), replace a failing cylinder, or realign a door that's dropped in its frame. Rekeying and minor lock repairs are typically among the more affordable locksmith services, usually a service-call fee plus a per-cylinder charge, while full hardware replacement depends on the lock you choose. It's also the natural moment to rekey after moving into a new home, so you know exactly who holds a working key.
Stiff locks aren't all the same problem, and the fix depends entirely on where the resistance lives. If the key is hard to slide in and out, the culprit is usually grit inside the keyway or a worn key — the internal mechanism is likely fine. If the key goes in smoothly and turns, but the deadbolt won't fully throw or the door has to be lifted or shoved to lock, the issue is almost always outside the lock: a misaligned strike plate, a sagging door, or a swollen frame, not the cylinder itself. If the whole lock body wiggles or the cylinder feels loose in the door, the mounting screws have worked loose. And if it only sticks in deep summer humidity or a hard freeze, you're seeing the door and frame expand and contract with the weather. Naming the symptom first saves you from 'fixing' the wrong thing.
For a cylinder that's dry or gritty, use a lock-specific dry lubricant such as a PTFE (Teflon-based) spray or powdered graphite, work the key in and out a few times, and wipe away the excess. The product to avoid inside a lock is common oil-based spray lubricant: it frees things up for a day or two, then attracts dust and grime and gums the mechanism worse than before. When the bolt won't throw cleanly, the real fix is usually alignment — check whether the bolt lines up with the hole in the strike plate, tighten loose hinge screws that let a heavy door droop, and adjust or reposition the strike plate so the bolt slides home without being forced. It's also worth testing with a freshly cut key, since a worn key can make a perfectly healthy lock feel like it's failing.
Cleaning, lubricating, and strike adjustment solve a lot of sticky locks, but some symptoms mean the mechanism itself is wearing out. Internal pins and springs degrade over years of use, and a cylinder that binds even after cleaning is often past the point of a home fix. Treat a deadbolt that no longer fully extends as a security issue, not a nuisance — a bolt that only throws halfway can be pushed back with surprisingly little force. A locksmith can rekey the lock (keeping the hardware but resetting the internals to a new key), replace a failing cylinder, or realign a door that's dropped in its frame. Rekeying and minor lock repairs are typically among the more affordable locksmith services, usually a service-call fee plus a per-cylinder charge, while full hardware replacement depends on the lock you choose. It's also the natural moment to rekey after moving into a new home, so you know exactly who holds a working key.
Call (877) 459-5147 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: (877) 459-5147 — a straight answer and an honest estimate before any work begins.