Lock Rekeying Service
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Short answer
Rekeying changes the pins inside an existing lock so old keys no longer work, while the hardware stays on the door. It is the right choice when the lock itself is sound and the problem is who holds a key — after a move, a tenant change, a lost keyring or a relationship ending. Replacement is the right choice when the hardware is damaged, worn, corroded, or you want a different security grade or a smart lock.
Rekeying swaps the internal pin combination of your existing lock cylinder so old keys stop working and a new key operates it — the lock hardware itself stays the same. It's a common, lower-cost alternative to full replacement when hardware is in good shape.
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How rekeying works
A locksmith removes the lock cylinder's pin stack and replaces it with a new combination matched to a new key, using the existing lock body and mechanism. Any previously cut keys will no longer operate the lock afterward.
When rekeying is the right call
- You just moved into a home and don't know who has old keys
- You lost a key but the hardware itself is undamaged
- You want to combine several different keys into one keyed-alike set
- A tenant moved out and you want to secure the unit without replacing hardware
Keyed-alike systems
Rekeying multiple locks to the same key combination — front door, back door, side gate — is a common request for households that want one key for everything. It's done during the same rekeying visit and doesn't require different hardware, just matched pin combinations.
What rekeying does not fix
Rekeying only changes what key works; it doesn't repair a worn latch, loose strike plate, bent bolt, or a lock damaged in a break-in attempt. If the hardware itself is compromised, replacement is the appropriate fix instead.
Rekey or replace the locks?
Rekeying changes the internal pins so old keys no longer work while keeping the existing hardware. It is the usual choice after moving in, after losing a key, or after a roommate or contractor turnover, provided the locks are in good condition. Replace the lock when the hardware is damaged, worn, obsolete or too weak for the door, or when you want a different lock type such as a smart lock.
| Rekey | Replace | |
|---|---|---|
| Keeps existing hardware | Yes | No |
| Invalidates old keys | Yes | Yes |
| Fixes worn or damaged hardware | No | Yes |
| Typical reason | Key control after a change in who holds keys | Hardware condition, security upgrade or new lock type |
Rekey when
- Hardware works smoothly
- You only need old keys invalidated
- You want several doors on one key
Replace when
- The lock sticks, is damaged or is worn
- You want an upgraded or smart lock
- The door hardware no longer fits the door
Terms explained
- What is rekeying a lock?
- Rekeying is changing the pin configuration inside an existing lock cylinder so that previous keys no longer operate it and a new key does. The lock hardware stays on the door. It is commonly done after moving in, losing a key, or a change in who holds keys, and several locks can often be rekeyed to a single key.
Frequently asked questions
Is rekeying cheaper than replacing the lock?
Rekeying generally involves less labor and no new hardware purchase compared to full replacement, but exact pricing depends on the provider and number of locks.
Can all my locks be rekeyed to one key?
Yes, as long as the cylinders are compatible with a keyed-alike combination; this is a standard request during a rekeying visit.
How do I know if I need to rekey or replace?
If the hardware operates smoothly and just needs new key control, rekey. If the lock is worn, damaged, or you want a different grade or smart-lock feature, replace it instead.
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
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