Locksmith in RoselandKeys that fit.
Locks that hold.

It is the sensible step, and a lockout visit is a convenient moment for it. Rekeying keeps your existing cylinders and changes the pins so a new key operates them and the unreturned one does nothing. If your doors use interchangeable cores, swapping the core takes minutes. Bring every door that shared the old key onto the new one, count the fresh keys into named hands and start a register so the next departure is a line in a book rather than a call.

Sometimes, and the visit answers it. A key that failed from its own fatigue in a clean, smooth cylinder says nothing against the lock. A key that broke because the pins were worn flat, the cap had loosened or the keyway was full of grit says the cylinder needs a service or a rekey. One that broke in a corroded, pitted plug is telling you the lock is due for replacement.

They lead to the same result, a door that a different key opens, by different means. Changing the locks puts new hardware on the door. Rekeying keeps the deadbolt and handle you have and changes what is inside the cylinder, commonly the bottom pins on a conventional lock or a reset on a homeowner-rekeyable one, so a new key operates it and the old one turns nothing. For hardware in good condition, rekeying is the natural choice after a lost key because nothing about the door's look or fit changes.

Then a replacement case goes into the existing pocket. Reproduction mortise cases are made in the common vintage sizes and backsets, and a modern mortise case with a cylinder fits many old pockets with minor trimming. The locksmith measures the case height, depth, backset and trim spacing before ordering, aiming for the new case to drop in with the original knobs and plates going back on, though a small pocket trim or fixing change is sometimes needed. Cutting the door for a different kind of lock is the last choice.