My lock won't turn
Need urgent home service help?
Call to be connected with an available independent locksmith professional.
Independent providers determine availability and pricing. How matching works
Short answer
If the key goes in but will not turn, first take the weight off the door — lift or push it slightly and try again. If that frees it, the door or strike plate is misaligned. If the key barely enters, or turns roughly on every door, the key or cylinder is worn. Do not force it: a key that snaps in a stiff lock turns a small adjustment into an extraction and often a replacement.
A lock that resists is giving you notice. The three usual explanations are a door or strike that has moved out of alignment, a worn key or cylinder, and corrosion or debris inside the mechanism. Forcing it is how the key ends up snapped in the keyway, so the useful move is to work out which of the three you have before applying more pressure.
Last updated
Is this an emergency?
Only if it leaves you unable to enter or unable to secure the property, or if a door that must work as an exit cannot be opened. Otherwise it is a prompt-service item — but not one to postpone indefinitely, because the failure mode is a broken key at the worst moment.
What should I do right now?
- Lift the door slightly by the handle, or push it firmly closed, and try the key again. If it turns, the problem is alignment, not the lock.
- Try a different copy of the key. If another copy works smoothly, the first key is worn.
- Look at the strike plate for shiny wear marks or a bolt that is scraping rather than entering cleanly.
- Apply a small amount of graphite or dry PTFE lubricant to the keyway — not oil or a general-purpose penetrating spray, which attract grit.
- Stop at the first sign of real resistance. Extra force is what breaks keys.
What might cause this?
| What you notice | Likely cause | Typical fix |
|---|---|---|
| Turns when you lift the door | Door sag or strike misalignment | Hinge, strike or door adjustment |
| Only one copy of the key is bad | Worn or poorly cut key | New key cut from the code |
| Every key is stiff, all doors | Worn cylinders or an aging keyset | Rekey or replace cylinders |
| Gritty feel, exterior door | Corrosion or debris in the cylinder | Clean and lubricate, or replace |
| Bolt throws but the door won't latch | Strike plate position or swollen door | Strike adjustment |
| Started after a break-in attempt | Internal damage | Replace the lock |
Who should I call?
A locksmith for the lock itself — worn cylinders, rekeying, replacement and key cutting. If the underlying cause is a door that has dropped, swollen or shifted in its frame, the durable fix is carpentry: hinges, strike position, or the door slab itself.
Say which one you think it is when you request help. 'The key turns fine when I lift the door' tells a locksmith more than 'the lock is broken' and often changes who should attend.
South Florida considerations
Humidity and salt air are hard on exterior locks. Coastal properties commonly see corrosion inside cylinders and on strike hardware years before an inland equivalent, and seasonal swelling of wood doors moves strike alignment enough to bind a bolt.
If a lock has been unused for months while a home was vacant, expect stiffness, and lubricate before forcing anything.
What not to do
- Do not use pliers on a key for extra leverage — that is the classic way to snap one.
- Do not flood the cylinder with oil-based lubricant.
- Do not sand or file a key to make it fit.
- Do not ignore a bolt that only throws when you shove the door; the alignment is still worsening.
Getting help
Describe what is happening and UrgentHomePro will try to connect you with an available independent local provider. You decide whether to hire anyone who contacts you.
Should a damaged lock be repaired or replaced?
A lock that is stiff, sticking or has a key broken in the cylinder is often repairable: the cylinder is cleaned, serviced or re-pinned and the hardware stays on the door. Replace the lock when it has been forced, when the body or bolt is bent, when corrosion has reached the internals, or when the cylinder can no longer be turned smoothly after service. In coastal South Florida, salt corrosion on exterior hardware is a common reason a repair does not hold.
| Repair or service | Replace | |
|---|---|---|
| Key sticks or turns roughly | Usually | If service does not resolve it |
| Key snapped in the cylinder | Usually — extraction and service | If the cylinder was damaged |
| Lock was forced or pried | No | Yes |
| Bolt does not align with the strike | Often a door or strike adjustment | Only if hardware is damaged |
| Visible corrosion inside the cylinder | Temporary at best | Yes |
Repair when
- The hardware is sound and reasonably recent
- The fault is dirt, wear or alignment
- A key fragment needs extracting
Replace when
- The lock was forced during a break-in
- Corrosion or damage has reached the internals
- You want a higher security grade on that door
Safety note: If a door cannot be locked at all, treat securing the property as the priority and ask for a temporary secure option until permanent hardware is fitted.
Frequently asked questions
What lubricant should I use on a door lock?
Graphite or a dry PTFE lubricant is the usual recommendation for pin tumbler cylinders. Oil-based sprays attract dust and can gum up the mechanism over time.
Why does the deadbolt only lock when I pull the door?
The bolt is not aligned with the strike opening, usually from door sag, hinge wear or seasonal movement. Adjusting the strike or hinges fixes it properly.
Can a locksmith fix a worn lock, or does it need replacing?
It depends on which part is worn. A worn key with a sound cylinder is a new key; a worn cylinder is usually rekeyed or replaced.
Is a stiff lock a security problem?
It can be, if a deadbolt is not fully extending into the strike. A bolt that only partially throws provides much less resistance to forced entry.
Sources
- Avoiding locksmith scams — confirming price and identity before work starts — U.S. Federal Trade Commission
- Verify a Florida contractor or plumbing license — Florida DBPR Licensing Portal
Need lock won't turn?
Tell us what you need and enter your ZIP code to find local professionals who may be able to help.
More locksmith services
Answers, costs and next steps
Lock won't turn by city
UrgentHomePro accepts requests around the clock. Availability, hours, licensing, pricing and warranties are set by each independent provider and vary — we tell you when no participating provider is available rather than implying one is on the way.
UrgentHomePro is a home-services matching platform. We help connect consumers with independent home-service providers. UrgentHomePro does not perform home repairs and does not employ the independent providers it may route requests to. Provider availability, qualifications, licensing, pricing, warranties and service terms are determined by the individual provider. Calls placed through this site may be connected to an independent provider or a partner provider network, and UrgentHomePro may be compensated for qualifying calls and requests. Availability and arrival times vary by provider, location and current demand.