A safe you can’t open is a strange kind of problem. Nothing is broken, nothing is missing except a small piece of metal or a few numbers in your head, and yet the thing in front of you is built specifically to resist what you’re about to try. Most of what’s written online about opening a safe without the key (coat hangers through the back, knives and screwdrivers in the keyhole, “just drill the key slot”) is bad advice that ends with a safe that is both still locked and now also damaged. This guide is what we actually tell people who call us in Phoenix with a safe they can’t get into: how to figure out what kind of lock you have, what you can safely try yourself, what a safe locksmith does when you can’t, what it costs in general terms, and how to make sure it doesn’t happen again.
First, which kind of “lost” is it?
Safes lock in four ways, and the fix depends entirely on which one you have.
Key lock only. A keyhole on the door and nothing else. Common on small cash boxes, drawer safes, older wall safes, gun cabinets and many cheap import safes. Lost key means a locksmith either makes a new key to the lock or opens the safe and replaces the lock.
Dial combination. A round dial with numbers around the edge. The classic mechanical safe lock (Sargent & Greenleaf, LaGard and similar), found on older home and office safes, gun safes and most commercial safes. There is no key to lose; what gets lost is the combination. Many of these also have a small keyhole beside the dial: that’s usually a key lock on the dial, which freezes the dial so it can’t be turned, not a way to open the safe without the combination.
Electronic keypad. A number pad, sometimes with a small LCD. Found on most home safes and gun safes sold in the last twenty years, hotel-style safes and many commercial safes. Opens with a code, runs on batteries. Many have an override key behind a small panel or a removable logo badge, and that’s usually the key people have lost.
Dual control. A key and a combination, both required. Common on deposit safes, pharmacy safes and some commercial units. Losing either one locks you out.
If you’re not sure, take a photo of the door and the lock and have the make and model handy (usually a sticker on the door edge, the back, or inside the door if you’ve ever had it open). That’s the first thing we’ll ask for.
What you can safely try first
These steps don’t damage anything, and they solve a surprising share of “I’m locked out of my safe” calls.
Dead keypad, no override key. This is the single most common reason a safe won’t open. The batteries are flat, so the code does nothing. On almost every consumer safe the battery compartment is on the outside of the keypad: slide the keypad cover down, pop the plastic housing off, or unscrew a small panel. Put in fresh name-brand alkaline batteries (not rechargeables, which run at a lower voltage that some keypads won’t accept), wait a moment and try the code. Some keypads have two metal contacts or a terminal on the front for holding a 9-volt battery against them to power the lock from outside; if yours does, that’s what it’s for. If you’ve replaced the batteries and the keypad lights up but the door still won’t open, keep reading.
Code entered, lock clicks, door won’t open. You’re hearing the lock release, so the problem is the door, not the lock. Push the door firmly inward while you turn the handle: the bolts bind when the safe is overloaded or the door has shifted. On safes with a handle, you typically have a few seconds after the click to turn it. On safes with no handle, pull as you enter the last digit.
Dial combination you half remember. Dial locks have a specific dialing sequence (usually four turns left to the first number, three right to the second, two left to the third, then right until it stops) and they need the dial to pass each number the right number of times. Most “the combination doesn’t work anymore” calls are dialing technique, not a wrong combination. Try it slowly, from the beginning, and don’t back up if you overshoot: start over.
Lost code, but the safe is new to you or still sold today. Some manufacturers (Sentry is the best-known) will supply the factory combination or a replacement override key against the model and serial number with proof of ownership and a small fee. It takes a week or two. If the safe isn’t urgent and it’s a model they still support, this is the cheapest route and the one we’ll suggest first.
Someone else may know it. The previous owner of the house, the estate’s executor, the office manager before you, the person who installed the safe. It sounds obvious; it gets skipped.
What not to do
Don’t put tools in the keyhole. A screwdriver or knife won’t “shake the mechanism open.” On a cheap safe it bends the wafers so that even the right key won’t work afterward; on a decent safe it does nothing except make the next step more expensive.
Don’t drill it yourself. Safe doors are designed around this. Many have hardened plates that eat drill bits, and most lock bodies have a relocker: a spring-loaded bolt that fires when the lock is attacked and jams the door shut in a way that only a professional opening will clear. A safe someone has already tried to drill is the hardest job we see, and the most expensive to fix.
Don’t try to reset the keypad through a hole in the back. The “coat hanger through the vent hole to press the reset button” trick circulating online applies to one or two models of very cheap box safe, and even there it usually breaks the keypad wiring. On anything else there is no button to reach.
Don’t pry the door. Prying bends the frame and bolts; then the lock opens and the door still won’t.
What a safe locksmith actually does
The job is to get the safe open with the least damage possible, and then put it back to working condition so you can use it with a new key or code. In rough order of preference:
Key origination. For key-only safes, a key can often be made to the lock through the keyhole, with no damage at all. Some locks are stamped with a code that lets the key be cut directly. On high-security safe locks the key is a dealer part and the lock gets replaced instead.
Manipulation and decoding. A skilled operator can recover the combination of many mechanical dial locks by feel and patient dialing, with no marks on the safe. It takes time (sometimes hours) and not every lock allows it, so it suits valuable safes where the owner wants nothing drilled.
Electronic lock recovery. Some keypads can be reset by the technician using the manufacturer’s procedure or a replacement keypad when the problem is the keypad itself rather than the lock inside the door. If the lock body inside has failed (the motor or solenoid is dead, which happens), it gets opened and replaced.
Drilling, done properly. When nothing else works, the locksmith drills one small hole in a precise spot, usually to see or reach the lock, opens the safe, then repairs the hole with a hardened plug and replaces the lock. The result is a working safe with a fresh lock and a new key or code, and often you can’t tell it was ever opened. This is nothing like “drilling the key slot.”
Replacement lock and keys. Whichever way the safe is opened, you leave with a working lock: a new key lock with two keys, a dial with a combination you choose, or a keypad set to your code. If the safe isn’t worth that, we’ll say so and open it for the contents.
What we need from you
Proof that the safe is yours or that you have the right to open it. For a home safe that’s your ID and an address that matches; for a safe in a house you’ve just bought, the closing papers; for an inherited safe, the paperwork showing you’re the executor or heir; for a business safe, a manager or owner present. We don’t open safes without it, and you shouldn’t trust anyone who will.
Also useful: the make and model, a photo of the door and lock, whether anyone has already tried to open it, and roughly what it weighs or where it is (a 600-pound gun safe in a second-floor closet is a different afternoon from a drawer safe on a desk). With that we can usually tell you on the phone which method we expect to use and quote it.
What it costs, in general terms
Opening a safe is priced by the method, not by the minute. Making a key to a simple key-lock safe is at the low end. Opening a cheap electronic safe with a dead lock is in the middle. Manipulating a mechanical dial, or drilling and repairing a quality safe and fitting a new lock, is at the top. The price goes up when the safe has been drilled, pried or glued by someone before us, and down when you have the model number and the paperwork ready. We quote it before we start.
Common safes and what to expect
Sentry, Honeywell, First Alert and similar home safes. Keypad with override key, or key only. Batteries first, then the manufacturer for a key or code if you have time, then us.
Gun safes (Liberty, Winchester, Cannon, Stack-On, big-box brands). Dial or keypad. Keypads on these fail more than the dials do; a dead keypad is often replaced without opening the safe if the lock inside still works. All-keys-lost on the dial version means manipulation or a drill-and-repair.
Hotel and dorm-style safes. Keypad with a master override. If it’s yours (you bought it for home), batteries and the manufacturer; if it’s in a rental you manage, we can open and reset it.
Older wall and floor safes. Usually dial combination, often decades old. Manipulation works well on many of these, and the lock can be serviced rather than replaced.
Commercial and deposit safes. Dual control or high-security locks. We open and relock these for business owners with the right paperwork, and we can convert an old dial to a keypad or add a second lock while we’re there.
After it’s open: don’t do this twice
Make and store a spare key somewhere that isn’t inside the safe. Write the combination down and keep it with your important papers, not in the safe either (yes, people do that). Change the batteries in a keypad every year on a date you’ll remember, and replace them at the first low-battery beep rather than the last. If you bought the safe used, have the combination changed so the previous owner’s numbers are gone. And if you inherited the safe, keep the paperwork that shows it’s yours; it makes the next locksmith visit a quick one.
Safe lockout FAQ
Can you open my safe without destroying it?
Almost always. Key origination and manipulation leave no marks. When drilling is needed, one small hole is made in a planned spot and repaired, and the safe keeps working with a new lock.
I have the key but it won’t turn.
If it’s a keypad safe, the override key usually only works when the lock’s bolt is not under pressure: push the door in while turning. If it’s a key-only safe, the lock may be worn or something is bent inside; don’t force it, call.
The keypad beeps and shows an error after every code.
Most keypads lock out for a few minutes after several wrong entries. Wait ten to fifteen minutes with fresh batteries in, then try once, slowly. If it still errors, the lock may have failed.
Will the manufacturer just send me a key?
Some will, for models they still support, with proof of ownership and the serial number. Expect a week or two. It’s the cheapest option if you can wait.
Can you change the combination afterward?
Yes. On dials, keypads and dual-control locks. We recommend it any time a safe changes hands or someone who knew the code leaves.
Do you come to the safe?
Yes. Safes don’t travel well, so all of this is done where the safe sits, anywhere in Phoenix, Scottsdale, Tempe, Mesa, Chandler, Glendale and the rest of the Valley, Monday to Friday, 8:30am to 6pm.
Locked out of a safe? Call (602) 301-5243 with the make, model and a photo of the lock. We’ll tell you what to try first, what we’d do if that fails, and what it costs. More on our safe locksmith page.