A rekey changes the pins inside your existing lock so old keys no longer match and you get a new set. A lock change swaps the hardware. The locksmith looks at the door and tells you which one the lock actually needs.
Rekey or replace?
Rekeying keeps your lock and changes only the pin stack inside the cylinder. It makes sense when the hardware is in good shape and you simply need the old keys taken out of play: after a move, a roommate change, or a lost set.
Replacement makes sense when the lock is worn, sticking, rusted, outdated, or when you want a different grade or style of hardware. It also makes sense when a landlord or insurer asks for a specific type.
- Rekey: same lock, new pins, new keys, one cylinder or all of them keyed alike
- Replace: new deadbolt, knob, lever, or mortise lockset fitted to the existing door prep
- Keyed alike: one key for the front door, the back door, and the gate
What the visit looks like
The locksmith pulls the cylinder, checks the door and strike, and tells you what they see. Rekeys are straightforward when the cylinder is in good shape. Replacements depend on the hardware: common deadbolts and knobs are simple swaps, while unusual mortise bodies may need a second visit once the right part is sourced.
Common questions
Can I rekey a lock to match a key I already have?
Often yes, if the existing key uses the same keyway as the lock. The locksmith checks both before starting.
Do you rekey high-security cylinders?
Restricted cylinders are rekeyed only for the registered cardholder. Bring the card or the paperwork that came with the system.
My landlord says I cannot change the lock. What now?
Many leases allow a rekey as long as the landlord gets a copy of the new key. Check the lease or ask before the visit, and the locksmith can cut the extra copy.