Do Locksmiths Keep Copies of Keys?
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Licensed, bonded & insuredPublished On:February 6, 2020
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You hand a locksmith your key to cut a spare, and a small worry shows up. Could they keep a copy and let themselves in later? It is a fair thing to wonder about anyone who works on your locks.
Here is the short answer. A reputable locksmith does not keep copies of your keys. There is no back-room cabinet of customer keys and no file with your address sitting next to a spare. What follows is how key cutting actually works, and the part that matters more now, which is how to control who can copy your key in the first place.
Do locksmiths keep copies of the keys they cut?
No. A key is cut in front of you in a minute or two and handed straight over. Nothing is kept behind the counter.
That is exactly how we handle it at Texas Premier Locksmith, cutting your key while you watch and handing it straight over.
Once you look at how the job is done, the idea of a locksmith hoarding keys falls apart for a few practical reasons:
- It happens in the open: the key is cut while you stand there, so there is no quiet moment to run a second copy unseen.
- A loose key is nearly useless: a cut key with no name or address does not tell anyone which door it opens.
- Stored keys are pure risk: holding customer keys would be a liability with no upside, and no honest shop wants that exposure.
- Trust is the whole business: locksmiths live on repeat calls and referrals, and one betrayed customer ends both.
The copy you should actually think about
The locksmith is rarely the real exposure. The copies already out there are, and most of them were made long before you started asking this question. A typical home has more working keys in circulation than the owner can name.
Think about who may still be holding one:
- The previous owner or tenant: unless the locks were rekeyed at move-in, their keys still work.
- A contractor, cleaner, or agent: anyone given access during a project or a sale may have cut a spare for convenience.
- An old roommate or ex: keys handed out during better days rarely come back.
- The hardware store counter: anyone holding your key can copy it there in under a minute, with nobody asking who they are and no record of it having happened.
How to control who can copy your key
You cannot chase down every spare, but you can decide who is able to make a new one from here on. If you want the copy question closed for good, two dependable options do it:
- Restricted or high-security keys: these use patented key blanks that are not sold in stores or to the public. A copy can be made only by the authorized dealer who holds your account, and only for a person named on the signature card on file. An ordinary hardware counter or a walk-in locksmith cannot reproduce one, because they cannot get the blank and are not on your authorization. That is the entire point of a restricted, high-security key system.
- Rekeying when keys change hands: rekeying resets the lock so old keys no longer work, without replacing the hardware. It is the fast, low-cost fix after a move, a breakup, or a lost key.
For the homeowner who wants this settled once, a restricted key system or a keyless lock is the definitive answer. One controls exactly who can make a copy, the other removes the copy from the picture altogether.
Expert Tip
If you have moved into a home in the past year and have not rekeyed, assume at least one working key is still out there. On rekeys we often find the back door still opening on the builder’s original key that was never changed after move-in.
Where smart locks change the question
With a smart lock or keypad, the copy question changes shape. There is often no physical key to duplicate at all. Access becomes a code or a phone credential that you can hand out and take back yourself.
That shift solves the exact worry this page started with:
- Codes instead of copies: give a cleaner or guest a temporary code and delete it when the job is done.
- A record of who came and went: many keypads log each entry, so access is no longer a mystery.
- A mechanical backup still counts: batteries die, and most smart locks keep a key override, so key control does not vanish, which is a big part of why smart locks hold up better than most people expect.
What to do if you think someone has a copy of your key
Maybe a key never came back, or you have simply lost track of how many are out there. You do not need proof that someone will misuse it. If the thought keeps nagging, that alone is reason enough to reset access. Here is the order that works:
- Rekey the exterior doors first: the front, back, and garage entries are what matter, and one rekey visit makes every old key useless.
- Collect or cancel what you can: ask for spares back, and retire any key hidden outside under a mat or stone.
- Switch to codes if handoffs are frequent: a keypad or smart lock lets you issue and remove access without cutting anything.
Not sure who still has a key to your place?
If you have just moved in, changed roommates, or lost a key somewhere you cannot retrace, rekeying is the quick fix, and it costs far less than new hardware. At Texas Premier Locksmith we rekey homes and businesses across Texas, set up restricted key control when you want copies locked down, and fit smart locks when you would rather manage access by code. Call us and we will sort out who can open your door.
Written By
TPL
Texas Premier Locksmith Team
Texas Licensed Locksmith — License #B17236
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Frequently Asked Questions
Does a locksmith keep a record of my address with my key?
No. Even when a shop keeps an invoice for the work, it is not filed next to a cut key, and a key with no address does not open anything on its own.
Can anyone tell if my key has already been copied?
There is no reliable way to tell from the key itself. If you are unsure who holds a working copy, rekeying is the honest answer because it makes every old key stop working.
Should I rekey or replace the lock?
Rekey when the lock is in good shape and works smoothly, since it is cheaper and quick. Replace when the hardware is worn, damaged, or you are moving up to locks built to slow down a break-in.