Rekey vs Replace Locks: Which Do You Need?
Both accomplish the same core goal — invalidating old keys — but they cost differently and make sense in different situations. Here's how to decide.
What rekeying is
The locksmith opens the existing cylinder, replaces the internal pins to match a new key, and reinstalls. The lock body, deadbolt, strike and hardware all stay. Only the pin combination changes.
What replacement is
Old hardware comes off, new hardware goes on. Handles, deadbolts, strike plates and sometimes screws are all new. New keys come with the hardware.
Choose rekey when...
- You just moved into a home and the hardware looks fine
- You lost keys but the locks work smoothly
- You want all doors on a single key without buying new hardware
- You already have quality hardware (Schlage, Kwikset SmartKey, higher-grade brands)
Choose replacement when...
- Hardware is worn, loose, or doesn't fully engage the strike plate
- You want to upgrade to a higher security grade or smart lock
- Hardware was damaged in a break-in attempt
- Existing locks are cheap builder-grade and unlikely to last another few years
- You want a fresh finish to match new door hardware
Cost trade-offs
Rekeying is typically much cheaper per lock than buying and installing new hardware, because you're only paying for labor and pins — not hardware. Replacement costs more up front but resets condition, grade and appearance. Neither is universally better; see the cost guide for what affects pricing in Amarillo.
Questions people ask
Is a rekeyed lock less secure than a new one?
No. Security comes from the grade and condition of the hardware — not from how recently the pins were changed. A rekeyed high-quality lock is more secure than a brand-new builder-grade one.
Should I rekey or replace after losing keys?
Rekey is usually the answer. It invalidates the lost keys at a fraction of the cost of new hardware.
Can builder-grade Kwikset be rekeyed?
Yes, though if the finish is worn or the deadbolt is loose, it's worth replacing rather than paying to service hardware that's already tired.
Request Amarillo locksmith service
Share your situation and location so an Amarillo locksmith can respond. Ownership or lawful authorization must be verified before any work is performed.
Prefer to speak with someone? Call (806) 552-9988.
Not sure which you need?
Call (806) 552-9988 and describe the lock — a locksmith can recommend rekey or replace based on the condition and your goals.