Locksmith in MerrittonExit doors, closers,and hardware that lasts

An interchangeable core is a small, self-contained cylinder that slides out of the lock with a special control key and drops back in on a new combination. Look at the keyway: a figure-eight shaped face on a lever or mortise housing is the usual sign. Buildings choose them because a lost key or a staff change is handled by swapping the core rather than taking the lock apart, and a locksmith can carry cores pinned to your system.

When the hardware itself is the weak point: a plug worn oval, a cylinder eaten by salt from a driveway-facing door, a light knob lock on an exterior door, a keyway with no blanks left in supply, or when you want a different style, a heavier deadbolt or a keypad. In those cases a new lock keyed to match the rest of the house is fitted in the same visit. Everything else is rekeyed.

Rekeying keeps your existing deadbolt or handle set and gives it a new key, commonly by changing the pins inside, though some cylinders reset a different way. Replacing removes the whole lock or cylinder and fits new hardware. Rekeying suits locks that are in good condition and simply need a fresh key. Replacement is the better call for hardware that is worn or damaged, built to a low grade, on a keyway the other doors cannot share, or due for a change of style or a keypad.

Usually, yes. If the new lock shares a keyway with your existing cylinders, the locksmith repins it on the bench so your current key operates it, and nothing changes on anyone's ring. If the keyways differ, the other doors can be brought onto the new key instead. Say which key you want to keep before the hardware is chosen, because keyway is part of picking the lock.