Decision Guide

Both rekeying and replacing a lock result in the same outcome from the outside: old keys no longer work, and you leave with new ones. The difference is what happens to the hardware on your door — and that distinction determines which option fits your situation.

What's the Difference?

Rekeying changes the internal configuration of an existing lock so it works with a new key. The existing lock hardware generally stays in place, while the old key no longer operates it.

Replacement removes the existing lock hardware entirely and installs new hardware in its place. New keys are provided for the new lock.

The key distinction: rekeying keeps your existing hardware and changes which key operates it. Replacement removes the existing hardware and installs different hardware.

When Rekeying Generally Makes Sense

• Your lock hardware is functional and in good condition — it turns smoothly, the latch operates properly, and there's no visible wear or damage.
• You just moved into a new home and want to ensure that previous owners, agents, or contractors no longer have a working key.
• A key was lost, copied without your knowledge, or given to someone who no longer needs access.
• A roommate, tenant, or employee situation changed and you want to revoke their key access.
• You're satisfied with the existing lock hardware and don't need a different type or grade.

See our Lock Rekeying service →

When Replacement Generally Makes Sense

• The hardware is physically damaged, stiff, or was compromised during a forced entry attempt — rekeying a failing lock gives you new keys for a mechanism that's already unreliable.
• The lock is worn from years of heavy use and no longer operates smoothly or reliably.
• You want to add a deadbolt where only a knob lock currently exists.
• You want to upgrade to a higher security grade than the existing hardware provides.
• You want to upgrade to a smart lock, keypad, or another type of locking hardware.

See our Lock Change & Replacement service →

A Note on Lock Compatibility

Not every lock is an equally good candidate for rekeying. The condition, design, age, and compatibility of the existing hardware can affect whether rekeying or replacement makes more sense in a given situation. A locksmith can inspect the lock and explain the practical options before work begins.

If You're Not Sure

Describe the situation when you call — what the lock is doing, what prompted the question, and roughly how old the hardware is. That context is enough for a locksmith to tell you which option is likely to apply before anyone shows up.

For typical rekeying costs in Dallas-Fort Worth, see our rekeying cost guide.

Not Sure Which Option You Need?

Call Right Choice Locksmith and describe the situation. We'll tell you which option makes sense before we show up.

📞 Call (469) 640-6420

Related: Lock Rekeying Service  ·  Lock Change & Replacement