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Why you should rekey your locks when you move

Moving into a new home? Learn why rekeying your locks matters, how it differs from replacing them, and what renters should know before they change any lock.

By the Los Gatos Locksmith Store teamPublished October 1, 2026Updated October 27, 20262 min read

Why you should rekey your locks when you move

When you get the keys to a new home, you have no idea how many other copies exist. Rekeying is a simple, affordable way to make sure only your household can get in.

What rekeying means

Rekeying changes the small pins inside a lock cylinder so it works with a new key. The lock body, handle and finish stay the same; every old key simply stops working. It is usually quicker and less expensive than replacing the lock, especially when several doors need doing.

You don't know who else has a key

Previous owners, past tenants, real estate agents, cleaners, neighbors and contractors may all have held a key at some point. Even if the seller says every key was handed over, nobody can be sure no copies were made. Rekeying removes that doubt.

One key for every door

While we rekey, we can usually set your front door, back door and garage side door to a single key, as long as the locks share a compatible keyway. Fewer keys on the ring means fewer to lose.

Renters: ask before you change anything

If you rent, the locks belong to your landlord. Ask whether the unit was rekeyed after the previous tenant. If not, ask the landlord to arrange it, or get written permission to have it done yourself and give them a copy of the new key as your lease requires.

Rekeying after renovations

Remodels often mean temporary keys for contractors and crews. Once the work is finished, a rekey is a sensible final step.

Rekey or replace?

Rekey if your locks work smoothly and you are happy with their security. Replace if a lock is worn, damaged, low-grade, or if you want a smart lock or a different style. Our technician will tell you which applies to each door.

Need a hand?

Ready to rekey your new place? Call 408-310-4398 or see our residential locksmith services.

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