What does key duplication involve?
Key duplication means cutting a new key that matches an existing one, so a second person, a second door, or a drawer in the office can be opened without passing a single key around. It sounds simple, and for a plain house key it often is. The part people underestimate is accuracy. A copy that is off by a few thousandths of an inch can feel fine in the lock for a week and then start catching, sticking, or refusing to turn at the worst moment.
We cut house keys, apartment keys, office keys, mailbox keys, and duplicate deadbolt keys. We also handle high security and restricted keys, which follow different rules and are covered below. If you are looking for a spare house key for a teenager, a copy for a dog walker, or a full set for a small office, the process starts the same way: we look at your original key and the lock it belongs to before we cut anything.
This page is about copying keys. If you have lost every key to a door, that is a different job, and our house lockout service in Arleta is built for it. If you want to stop old keys from working altogether, that is rekeying, which we explain in a later section.
Why do some key copies fail?
Most bad copies come from one of three places: a worn original, a poorly adjusted cutting machine, or a blank that does not truly match the keyway. Copying a copy makes the first problem worse. Every generation of duplicate carries the small errors of the one before it, and those errors add up until the key only works if you jiggle it.
A key that has been used for decades is worn on its cutting edges. If we trace that wear exactly, the new key inherits it. For that reason we will often check the original against the lock, and when the original is tired we may recommend cutting from the lock's actual specification rather than from the worn key. That can mean a slightly different process, but the new key tends to work more smoothly than the old one ever did lately.
Cheap blanks are the other trap. Hardware racks stock look-alike blanks that fit many keyways loosely. The key turns, but it rides sloppily on the pins and wears the lock faster. We match the blank to the brand and keyway of your lock instead of grabbing whatever is close.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How do we duplicate your key, step by step?
Whether you walk into our storefront at 10740 Wilshire Blvd or have a technician come to you, the sequence is the same. David oversees how the work is done, and nobody is rushed into a shortcut.
- We look at the original key and ask what it opens: a front door, a deadbolt, a garage side door, a mailbox, or an office suite. The answer tells us which blank and which method to use.
- We check the key for wear, bends, and cracks. A bent or damaged original is not a good source, and we tell you so before cutting.
- We select a blank that matches the keyway and brand, not just one that looks close.
- We cut the copy on calibrated equipment and remove the burrs left on the edges, because a rough edge drags on the pins and chews up the lock.
- We test the new key in the lock when the lock is available. If we are on site, that means the actual door. If you are at our storefront, we compare against the original and recommend you test the copy at home before relying on it.
- If the copy sticks or turns hard, we correct it or recut it. You should leave with a key that works, not one you have to coax.
Which keys can we copy?
Different keys call for different handling. Here is how it breaks down for what people in Arleta commonly bring us.
- House key copy and spare house key: standard residential keys for entry doors, deadbolts, and side doors. This is the most common request.
- Apartment key copy: we can duplicate standard apartment keys. If your lease or building management controls the keys, check what they allow first, since some buildings require their own authorization.
- Office key duplication and commercial key duplication: keys for suites, storerooms, file cabinets, and shared spaces. For larger sets, a master key system can be more manageable than dozens of loose duplicates.
- Mailbox key duplication: small, easy to misplace, and often forgotten until mail piles up. If the lock itself is the problem, a mailbox lock replacement may make more sense than another copy.
- High security key duplication: keys for patented or controlled keyways usually cannot be cut on an ordinary machine. We explain the options on a call, and our page on high security locks covers how these systems work.
- Restricted key duplication: restricted keyways are protected so copies are made only with authorization, such as a card, a registered owner, or proof of control of the property. We will ask for that. In some cases the manufacturer or a dealer is the only source, and we will tell you plainly if that is true for your key.
- Car keys: a basic metal-only key can sometimes be copied like any other. Keys with chips or remote functions are different, and what is possible depends on the vehicle. We confirm by VIN or in person rather than guessing, and our car key replacement team handles those cases.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What affects the cost of key duplication?
We do not quote numbers on a web page, because the honest answer depends on what is in your hand. Here is what moves the cost up or down, so you know what to expect before you call.
The type of key matters most. A standard brass house key is the lighter-cost job. A high security or restricted key takes more equipment, more verification, and sometimes an order from the manufacturer, so it costs more and takes longer. Quantity matters too: a handful of identical keys is simpler than several different keys for several different locks.
Condition of the original is another factor. If the key is worn or damaged and we need to work from the lock's specification instead, that is extra work. Location plays a part as well. Coming to our Westwood storefront is usually the more economical route for a simple copy. A mobile visit adds travel, since Arleta is about 18 miles from our base, but it saves you the trip and lets us test the key in the actual lock.
Timing can matter. Our phone is answered around the clock, and after-hours requests are handled differently from a scheduled daytime visit. Ask when you call, and we will tell you how the job will be priced before work begins.
Why choose Wilshire Lock & Key for spare keys?
We have been in business since 1987, and key cutting is among the oldest parts of the trade. That history shows up in small things: knowing which blank fits an older lock, recognizing a worn key before it gets copied, and being honest about when a copy is not the right answer.
We are one company. There is no dispatch middleman who takes your call and sends a stranger you have never heard of. The person on the phone works for the same business as the technician who shows up, and David, the owner and lead technician, oversees the work. We run a storefront plus mobile vans, so you can bring a key to us or have us come to you with our mobile locksmith service.
One more point of honesty: California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith you hire for it. That applies to us and to everyone else. Asking is a reasonable habit, especially when someone is making keys to your home.
What does key duplication look like in Arleta?
Arleta, ZIP code 91331, is overwhelmingly single-family, with 1950s ranch tracts, driveways, and detached garages, and relatively few multifamily buildings. That shapes what people ask us for. In a neighborhood like this, a household usually has more keys than the front door alone: the entry lock, a deadbolt, a garage side door, a gate, and maybe a mailbox. Copies tend to be needed in sets.
Many unremodeled homes still carry their original postwar locksets and garage hardware. Those locks have decades of use behind them, and the keys that fit them are often copies of copies. If you live along the Woodman Avenue corridor, the Osborne Street corridor, or the Branford Street corridor and your spare key has become stiff, that is worth fixing before it breaks off in the lock.
Heat is part of the picture too. Northeast valley summers make doors and frames expand routinely, so a lock that works in the morning can bind by afternoon. People respond by forcing the key, which bends it. The dry climate with no coastal corrosion means keys here usually wear from use, not from rust, so a clean, accurate copy tends to hold up well.
A common local scenario is buying a house along the Woodman Avenue corridor. New owners often want fresh keys for everyone in the household and a clean break from whoever held keys before. That is a rekey plus new copies, which we handle together. For businesses near the Osborne Street and Woodman Avenue commercial corner, we can duplicate office and shop keys with the same care.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366When is a copy not the right answer?
A duplicate is the right move when you have a working key and want more of them. It is the wrong move in a few situations, and we will say so instead of cutting keys that will not help you.
If you recently bought a home, moved into a rental, or ended a relationship with someone who had a key, copying your existing key does nothing about the keys already out there. Lock rekeying changes the lock so old keys stop working, and then we cut new ones to match. If you are locked out with no key at all, there is nothing to copy yet, and that is a lockout call first.
If your key is cracked, bent, or turning hard, copying it only multiplies the problem. And if you are comparing a copy against the cost of replacing a failing lock, we can look at both with you. The goal is a set of keys that works smoothly on a lock that is still sound.
Frequently asked questions
Can you copy a key while I wait?
For standard house, office, and mailbox keys, usually yes at our Westwood storefront, 10740 Wilshire Blvd. High security, restricted, and chipped car keys take longer or require verification first. Call (213) 577-1366 and describe the key, and we will tell you what to expect.
Do you come to Arleta to make copies?
Yes. Our mobile vans serve Arleta, and cutting on site lets us test the new key in your actual door, deadbolt, or gate lock. It is also convenient if you cannot leave the house. Travel is part of what affects the cost, so ask when you call.
Can you copy a key stamped Do Not Duplicate?
That stamp is not the same as a restricted keyway. It is a request, not a technical barrier, and some ordinary keys carry it. We will ask about the property and your authority over it. If the key belongs to a building or business you do not control, we will want permission from whoever does.
What is a restricted key, and can you copy one?
A restricted key uses a protected keyway so copies are made only with authorization. We can help when you can show you are the authorized owner, but in some cases only the manufacturer or a dealer can supply the key, and we will tell you plainly if that is the case.
Can you duplicate a car key?
It depends on the vehicle. A basic metal key may be simple, but keys with chips or remote functions need programming, and what is possible varies. We confirm by VIN or in person instead of guessing. For those cases, see our car key replacement service.
My spare key works poorly. Should I copy it again?
Usually no. Copying a worn or sloppy copy passes the errors along. Bring the original or the best key you have, and we can recut from a cleaner source or from the lock itself. A smooth key starts with an accurate source.
Can you make mailbox keys without the original?
Often yes, if we can identify the lock, which sometimes has a code or brand on its face. Whether it is straightforward depends on the mailbox type and who controls it. For shared or managed mailboxes, check with the property manager first.
How do I know the person cutting my keys is legitimate?
Ask for the BSIS LCO license, which California requires of locksmith companies. Ask who will actually come to your door, and whether they are the same company as the one answering the phone. With us, the answer is one company, with David overseeing the work.
More locksmith help in Arleta
Key Duplication near Arleta
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
