Home Rekey and Lock Change: What Each Service Actually Does
A rekey does not replace your lock hardware. Instead, a skilled technician disassembles the lock cylinder and swaps the internal pins so that your old keys no longer work and a new key cut to the fresh configuration is the only one that opens the door. Rekeying is ideal when the lock itself is in good mechanical condition but key control has been compromised — a previous tenant, a contractor who returned a key late, or an ex-partner who never handed theirs back. Because the hardware stays in place, rekeying is generally quicker than a full swap and requires fewer parts.
A lock change, by contrast, removes the entire lockset and installs new hardware. This is the right call when the existing mechanism is worn, damaged after a forced entry attempt, or simply not up to the security standard you want. Upgrading from a basic door knob lock to a Grade 1 deadbolt, or replacing an old mortise lock on a craftsman-style home in Boylan Heights with a modern high-security mortise cartridge, are classic lock change scenarios. Both services reset who has a working key — the decision between them comes down to the condition of your current hardware and your security goals.