Short answer: Moving into a home or rental where you have no idea how many old keys are floating around is exactly the right time to secure your locks. The question is whether to rekey the ones you have or replace them entirely — two very different jobs, prices, and outcomes that a good locksmith should walk you through instead of defaulting to the expensive one.
Moving into a home or rental where you have no idea how many old keys are floating around is exactly the right time to secure your locks. The question is whether to rekey the ones you have or replace them entirely — two very different jobs, prices, and outcomes that a good locksmith should walk you through instead of defaulting to the expensive one.
Rekeying versus replacing — what the difference really is
Rekeying keeps your existing lock hardware but changes the internals so old keys no longer work. A locksmith opens the cylinder, swaps the pin stacks to match a new key, and every copy the previous owner, tenant, contractor, or dog-walker held is instantly useless — all without touching the door or the finish. Replacing means removing the whole lockset and installing brand-new hardware. Rekeying is faster and cheaper and is the right call when your current locks are decent and working; replacement makes sense when the hardware is old, corroded, damaged, mismatched, or you specifically want an upgrade like a new deadbolt or a smart lock. A useful side benefit of rekeying: a locksmith can set multiple locks to open with one key, so your front door, back door, and side gate all take the same key instead of the ring of mismatched keys you inherited.
When rekeying is enough — and when it isn't
For a typical San Diego move-in where the doors have solid, reasonably modern deadbolts and knobs that latch cleanly, rekeying every exterior lock is usually all you need to take control of who has access. It is the default smart move after buying a home, after a tenant turnover, or after losing track of a key. Lean toward replacement, though, when the hardware itself is the problem: a deadbolt that is loose in the door, a knob worn so smooth the key barely catches, salt-air corrosion visibly eating an exterior lock near the coast, or a grade of hardware too flimsy for an exterior door. Replacement is also the path when you actually want new capability — keypad entry, a smart lock tied to your phone, or a higher security grade — rather than just fresh keys. The honest test is simple: rekey to change who has a key, replace to fix or upgrade the lock itself.
How to avoid being upsold hardware you don't need
Because replacement bills more than rekeying, this is a spot where a less scrupulous tech may push new hardware on locks that only needed re-pinning. Protect yourself by asking two questions: 'Can these locks be rekeyed?' and 'What is wrong with them if they can't?' A straight answer names a specific defect you can see — corrosion, a stripped mechanism, a broken latch — not a vague 'they're old.' Ask for the price both ways so you can compare rekey versus replace on each door, and treat any upgrade like a smart lock as your choice, not a requirement bundled into a lockout or move-in job. As a rough frame, rekeying commonly runs in the range of about $15 to $40 per cylinder plus a service-call fee, while full hardware replacement adds the cost of the locks themselves and more labor. Get it itemized in writing, and a fair locksmith will happily rekey what can be rekeyed and only replace what genuinely needs it.
Frequently Asked Questions
Rekeying versus replacing — what the difference really is?
Rekeying keeps your existing lock hardware but changes the internals so old keys no longer work. A locksmith opens the cylinder, swaps the pin stacks to match a new key, and every copy the previous owner, tenant, contractor, or dog-walker held is instantly useless — all without touching the door or the finish. Replacing means removing the whole lockset and installing brand-new hardware. Rekeying is faster and cheaper and is the right call when your current locks are decent and working; replacement makes sense when the hardware is old, corroded, damaged, mismatched, or you specifically want an upgrade like a new deadbolt or a smart lock. A useful side benefit of rekeying: a locksmith can set multiple locks to open with one key, so your front door, back door, and side gate all take the same key instead of the ring of mismatched keys you inherited.
When rekeying is enough — and when it isn't?
For a typical San Diego move-in where the doors have solid, reasonably modern deadbolts and knobs that latch cleanly, rekeying every exterior lock is usually all you need to take control of who has access. It is the default smart move after buying a home, after a tenant turnover, or after losing track of a key. Lean toward replacement, though, when the hardware itself is the problem: a deadbolt that is loose in the door, a knob worn so smooth the key barely catches, salt-air corrosion visibly eating an exterior lock near the coast, or a grade of hardware too flimsy for an exterior door. Replacement is also the path when you actually want new capability — keypad entry, a smart lock tied to your phone, or a higher security grade — rather than just fresh keys. The honest test is simple: rekey to change who has a key, replace to fix or upgrade the lock itself.
How to avoid being upsold hardware you don't need?
Because replacement bills more than rekeying, this is a spot where a less scrupulous tech may push new hardware on locks that only needed re-pinning. Protect yourself by asking two questions: 'Can these locks be rekeyed?' and 'What is wrong with them if they can't?' A straight answer names a specific defect you can see — corrosion, a stripped mechanism, a broken latch — not a vague 'they're old.' Ask for the price both ways so you can compare rekey versus replace on each door, and treat any upgrade like a smart lock as your choice, not a requirement bundled into a lockout or move-in job. As a rough frame, rekeying commonly runs in the range of about $15 to $40 per cylinder plus a service-call fee, while full hardware replacement adds the cost of the locks themselves and more labor. Get it itemized in writing, and a fair locksmith will happily rekey what can be rekeyed and only replace what genuinely needs it.
How do I get help with this?
Call (619) 848-0508 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: (619) 848-0508 — a straight answer and an honest estimate before any work begins.
Locksmith San Diego