By Unlock Charleston · Charleston, SC

Rekeying changes which key works

Rekeying changes a compatible lock’s internal keying so a different key operates it. The existing exterior hardware can remain in place. If your goal is to stop old key copies from working and the hardware is suitable, rekeying is an option to discuss. It does not, by itself, turn worn hardware into new hardware.

Replacement changes the hardware

Replacing a lock means installing different hardware. That may make sense when the existing lock is damaged, unreliable, incompatible with your plans, or simply not the style or function you want. A locksmith can assess the door and lock before recommending a path. Ask whether a repair, rekey, or replacement addresses the actual problem.

After moving, consider who may still have a key

You may not know how many copies were made before you moved in. Schlage identifies moving to a new home and lost or stolen keys as reasons to consider rekeying. Make a list of the exterior keyed doors you want addressed, including less-used entries. If you rent, confirm the owner or property manager’s permission before changing access.

One key for several doors depends on compatibility

Do not assume every lock can be made to use the same key. The lock brands and keyways matter. Tell the locksmith how many locks you have and whether your existing keys fit all of them. Photos can help start the discussion, but a visit may be needed to confirm the hardware and scope.

Keypad codes and physical keys are separate questions

A keypad model with a physical key can have more than one way to open it. Changing a user code does not necessarily change the physical key that works. When moving in, ask about both the mechanical key and the model-specific process for updating codes or account access. Follow the manufacturer’s instructions for the exact product.

Ask for an estimate based on the whole job

Count locks rather than just doors: one door may have both a knob lock and a deadbolt. Mention any missing keys, sticky hardware, or installation work you want included. Ask about the total, any service-call charge, and whether new keys or hardware are included. A clear scope makes comparisons more useful than a headline price alone.

Your quick checklist

• Property location and permission to change access
• Number and brands of the locks
• Whether current keys are available
• Any repairs, keypad changes, or keyed-alike goals

Planning a rekey in Charleston? Call or text Unlock Charleston with the number of locks and what you want to change.

Further reading: Schlage: when to rekey exterior locks · Schlage: professional rekeying options