Lock Rekeying Services

When you need to change who can access your property, replacing every lock may not be necessary. Lock rekeying changes the internal configuration of a compatible lock so previously issued keys no longer operate it.

Rekey Your Locks Without Replacing the Hardware

Rekeying allows you to keep compatible existing lock hardware while changing which key operates it. This can be a practical option when your locks are still in good working condition but you want better control over who has access.

Residential Lock Rekeying

Residential Lock Rekeying

Moving into a home, losing a key, or not knowing who may still have copies can create uncertainty about access.


I rekey compatible residential locks so old keys no longer work. This can be useful when you want to change access without replacing lock hardware that is still functioning properly.

Commercial Lock Rekeying

Commercial Lock Rekeying

Business access can change when employees leave, tenants change, keys go missing, or responsibilities shift. Rekeying can help business owners and property managers update key access while retaining compatible locks that remain in good condition.


For businesses with multiple doors or different access levels, a master key system may also be worth considering.

When Should You Consider Rekeying?

Lock rekeying may be appropriate when you:

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Move into a new home or business location

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Lose a key or cannot account for a copy

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Want previously issued keys to stop working

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Experience employee or tenant changes

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Need to update access without replacing good locks

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Want to simplify which keys operate compatible locks

If your existing hardware is damaged, worn, or unreliable, lock replacement may be the better option.

Rekeying vs. Replacing Your Locks

The main difference comes down to whether the existing hardware should remain in place.

With rekeying, compatible lock hardware stays on the door while its internal configuration is changed to work with a different key. This is useful when the lock itself still works well but access needs to change.

With lock replacement, the existing hardware is removed and new hardware is installed. Replacement may make more sense when a lock is damaged, difficult to operate, or no longer suitable for the property.

I can help you determine which option fits the condition of your locks and what you need to accomplish.

Screwdriver removing a door lock latch from a wooden door edge

Frequently Asked Questions

Not necessarily. Rekeying depends on the type, compatibility, and condition of the existing lock.

Rekeying can be a practical option after moving when you want previously issued keys to stop working and the existing locks are suitable for rekeying.

No. Rekeying changes which key operates compatible existing hardware, while replacement involves installing new lock hardware.

Request Lock Rekeying Service

When you choose Mk Locksmith Inc, you work directly with a local locksmith who has been serving customers since 2017. I take the time to understand what you need, explain your options, and recommend a solution appropriate for your property.

Need to change who has access to your home or business? Call Mk Locksmith Inc at (773) 447-7951 or use the contact form to request lock rekeying service.