Rekey vs. replace your locks: which one do you actually need?

If you just moved in, lost a key, or want to cut off someone who has one, you don't always need new hardware. Often rekeying does the job for less — but not always. Here's how to tell.

Rekeying — change the key, keep the lock

Rekeying resets the pins inside your existing lock so old keys stop working and a new key takes over. The hardware stays; only the key changes. It's the cheaper, faster option and it's usually the right call after moving into a home, losing a key, or a roommate/contractor turnover — as long as the locks themselves are in good shape. A bonus: a locksmith can often rekey several locks to a single new key.

Replacing — new hardware

• The lock is worn, sticking, or damaged.
• You want to upgrade security (a stronger deadbolt, a smart lock).
• The finish or style is changing with a remodel.
• There's no matching lock to rekey to your other doors.

Which is cheaper?

Rekeying is usually less than replacing, because there's no new hardware — but the real cost depends on how many locks, the lock type, and travel. Treat online numbers as ranges. A locksmith can tell you in a minute whether your locks are worth rekeying or better replaced, and give you the price before doing anything. Roger matches you to one vetted local locksmith — home and business only — with an upfront range and no lead auction.