You want old keys dead. Rekey changes pins inside the cylinder; replace swaps the whole thing. Same goal, different price tag and timing.
At a glance
General guidance only — not a quote or guarantee. Call (647) 874-2137 for a no-obligation estimate and a live ETA for your address and exact lock or key situation.
Rekey in one sentence
New pins, new keys, same knob or deadbolt on the door. Quick when the lock is healthy.
Replace in one sentence
Whole new lock on the door - needed when hardware is trash, you want smart, or you jump grades for security.
Pick rekey when
Move-in, bad breakup, lost key, staff turnover - cylinder is fine, you just need new pins and keys. Keyed-alike (one key all doors) is a rekey job too.
Our mobile locksmiths serve the entire GTA. Call (647) 874-2137 for current availability.
Pick replace when
Rust, wiggle, break-in damage, or you are done with builder Grade 3 junk. Smart lock or keypad = new hardware.
Cost outlook
Rekeying usually costs less than replacing every lock because you keep the hardware and only change the pins and keys. Full replacement adds the price of new lock bodies, finishes, and sometimes door prep. On similar hardware, rekeying several doors is often the better value - we confirm on site if you are split.
Will my brand rekey?
Big-box names usually yes. Weird old stuff might be replace-only. High-security cores rekey too but need the right kit - takes longer.
Bottom line
Good hardware, new people - rekey. Bad hardware or real upgrade - replace. Not sure? We look at the door on site and say it straight.
Need a locksmith in the GTA?
QA Locksmith is a mobile locksmith serving Toronto, Mississauga, Brampton, Vaughan, Markham, and all surrounding communities. We come to you — 24/7.
Call (647) 874-2137