Why does a copied key sometimes fail to turn the lock?
Most people think of key duplication as the simplest job in the trade, and in many ways it is. A blank goes into a machine, the original rides alongside a guide, and a short while later you have a second key. But that simple picture hides a handful of ways the job goes wrong, and those are the reasons a Van Nuys customer ends up with a key that sticks, spins, or refuses to enter the lock at all.
A copy is only as good as three things: the original you start from, the blank you cut onto, and the care taken at the machine. If the original is worn, the copy inherits that wear and adds a little error of its own. If the blank has the wrong keyway or a different shoulder, the key can look right and still bind. If the cutter is out of alignment or the burrs are left on, the key will slowly chew up the pins inside your lock.
That is why we treat key copying as precision work rather than a quick favor. We check a copy against the lock whenever we can, not only against the original key, and we will tell you plainly if the key you hand us is too worn to copy well. A copy of a copy of a copy is where most trouble starts, and we would rather say so up front than send you home with a key that almost works.
How do we duplicate a key, step by step?
Every key cutting service follows roughly the same path, but the details at each stage are where quality shows. Here is how we handle a copy, whether it happens at the storefront or from the van.
- Identify the key. We look at the brand stamped on the bow, the keyway profile, and whether it is a standard key, a high-security key, or a restricted one. That tells us right away whether this is a quick job or one that needs extra steps.
- Inspect the original for wear. We check for rounded-off cuts, a bent blade, and cracked or loose bows. If the key is badly worn, we will suggest copying from a better key if you have one, or discuss other routes.
- Match the blank. The correct blank for the keyway, length, and shoulder matters more than anything else. A wrong blank is the most common reason a copy almost works but never feels right.
- Cut the key. The original and the blank are aligned to the correct stop, shoulder or tip, and the cuts are made in one careful pass.
- Deburr and clean. Fine metal burrs left on a new key scrape the inside of your cylinder. We remove them so the key slides smoothly.
- Test it. If we have access to the lock, we try the copy in it. If not, we ask you to test it at home before you set the old key aside, and we will adjust the cut if it does not run smoothly.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Which keys can we copy in Van Nuys?
Most keys that come through the door fall into a few familiar groups. Some are straightforward, and some need a conversation first. Here is what we can usually tell you from a phone call or a look at the key.
- House key copy and spare house key: standard residential keys are the most common request and usually the quickest. We cut them on the correct blank for your brand of lock.
- Duplicate deadbolt key: deadbolts often use a different keyway than the knob on the same door, so we check each lock separately rather than assuming one key fits both.
- Apartment key copy: tenants and property managers both ask for these. If a key is stamped 'Do Not Duplicate,' that is a request from whoever issued it. We will ask a few questions and may decline when authorization is unclear.
- Office key duplication and commercial key duplication: suite doors, storage rooms, desks, and filing cabinets. If your building uses a master key system, tell us before we cut anything, because those keys call for extra care about who holds copies.
- Mailbox key duplication: building mailbox keys come in many styles. If you still have a working key, copying is usually simple. If the key is completely lost, a copy is not possible, and the answer is a new lock, which we cover under mailbox lock replacement.
- High security key duplication and restricted key duplication: these keys are built so they cannot be cut from just any blank. Some require proof of authorization, a registered card, or the manufacturer. We tell you before we start whether we can do it here or whether it has to go through the maker. If you are weighing an upgrade, our page on high-security locks explains how these systems work.
What affects the cost of key duplication?
We do not quote numbers on a web page, because the honest answer depends on the key in your hand. What we can do is explain what moves the cost up or down, so a phone quote makes sense when you get it.
A plain, common house key is usually the more economical route, and the price reflects that. As keys get more specialized, the cost reflects the blank, the time, and the paperwork involved.
- Key type: standard residential keys, high-security keys, and restricted keys are priced very differently because the blanks and the process differ.
- Blank availability: common blanks are on the shelf. Unusual or older keyways may need to be sourced.
- Authorization: restricted keys may require verification or a request through the manufacturer, which adds steps.
- Quantity: a single spare and a full set for a building are different jobs, and we can talk through the best way to handle a larger run.
- Where the work happens: a copy at our storefront involves different costs than a mobile visit to your door, and an after-hours visit differs from a daytime one.
- Condition of the original: a worn key may need extra attention or an alternate source key, which can affect the work involved.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Can we come to you for mobile key duplication in Van Nuys?
Yes, in many cases. Van Nuys is about 12 miles from our Westwood storefront, and our mobile service vans cover it regularly. Common residential and commercial keys are well suited to a van visit: we cut the copy, test it in your lock, and you are done without leaving the house or the office. Our mobile locksmith service page explains how van visits work in general.
Some keys are better handled at the storefront, such as unusual keyways or restricted keys that need extra verification. We will say so on the phone instead of sending a van that cannot finish the job.
Key copying is rarely an emergency, but timing sometimes matters. Someone may have a single key and need a spare before it goes missing, or a unit may need a set ready for a handoff outside normal hours. Our phone is answered around the clock, every day of the year, at (213) 577-1366, so you can ask when it is convenient for you.
What does key duplication look like around Van Nuys?
Van Nuys has its own pattern of keys, and it shapes how we approach copies here. Postwar bungalow and ranch tracts fill the flats, while corridors like Sepulveda Boulevard, Kester Avenue, and Victory Boulevard carry plenty of 1960s through 1980s garden apartments and dingbat-style multifamily buildings. The renter share is high, and many of the older apartment buildings still have their original knob-and-deadbolt hardware. That tells us something about the keys: a lot of them are decades old, have been copied several times, and are worn in ways that matter. If your apartment key is a third or fourth generation copy, bring it in and we will tell you honestly whether it is worth copying from or whether a cleaner source key is the better starting point.
On the Kester Avenue side, tenant turnover is a regular reason for key work. A copy is not a rekey, though. If you manage units, the better order is usually to rekey the locks between tenants and then cut the matching spares, which is also how we approach work for landlords and property managers.
Around the Van Nuys Civic Center government complex, the work leans toward offices and suites, where commercial key duplication and organized key sets matter more than a single spare. Along the Van Nuys Boulevard corridor, small businesses often need extra staff keys for a storefront door and a back room. For anything larger than a handful of keys, our commercial locksmith work covers it. Security screen doors are a common sight on denser blocks near the civic center, and if yours has its own lock, it likely uses a separate key, so bring that one along too.
We serve all of Van Nuys, including ZIP codes 91401, 91405, 91406, and 91411. One local note about the weather: interior San Fernando Valley heat runs well above Westside temperatures in summer, which can swell wood doors and frames and make latches bind. If a new copy feels stiff only on hot afternoons, the door may be the cause rather than the key. Corrosion is low this far from the coast, so a key that has gone rough is usually worn from use rather than rusted.
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 good locksmith will sometimes tell you not to copy a key. These are the situations where duplication is the wrong tool, and what to do instead.
- You have no working key at all. We cannot copy a key you do not have. That becomes a lockout or a lock replacement question, not a duplication one.
- A key has snapped inside the lock. A copy will not help until the broken piece is out, and our broken key extraction service handles that part.
- You do not know who else has keys. If past tenants, former employees, or contractors may still hold copies, a new key does not fix that. Changing the lock's pinning is the real remedy.
- The key is for a car. Vehicle keys with electronic components are a different job from cutting a metal blade. Whether we can make one depends on the specific vehicle, so we confirm by VIN and in person, and where a particular key can only come from the dealer, we say so plainly. Travelers near Van Nuys Airport and the FlyAway terminal who need this should read about car key replacement.
Why call Wilshire Lock & Key for key copies?
Wilshire Lock & Key has been in business since 1987, and key duplication was part of the trade long before it became a machine in a hardware aisle. We run a storefront at 10740 Wilshire Blvd in Westwood and mobile service vans, so you can come to us or have us come to you. We are one company, not a dispatch service that hands your job to whoever is nearby, and David, the owner and lead technician, oversees the work.
California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for it before they work on your locks. Do not hesitate to ask us either. We are in the process of adding our license number to this site.
We also keep it simple. We tell you what the key is, what the job involves, and whether another service would suit you better. If you want to talk it through, our contact page lists every way to reach us, and the phone at (213) 577-1366 is answered 24/7.
How do you keep spare keys useful instead of forgotten?
A spare key helps only if it works and you can find it. A few habits make a real difference.
- Test every new copy right away, in the actual lock, while you still have the original in hand.
- Copy from the original, not from a copy, whenever you can. Each generation loses some accuracy.
- Label keys by door or lock, not by street address, so a lost key does not announce where it goes.
- Leave a spare with someone you trust rather than under a mat, a planter, or a light fixture.
- Replace badly worn keys before they break off in the lock. A new copy from a good source key is cheaper than a broken-key call.
- If you manage a building or office, keep a simple record of who holds which keys and update it when people leave.
Frequently asked questions
Can you copy a key while I wait?
For common house and office keys, often yes, either at our Westwood storefront or by van. Unusual keyways, restricted keys, or badly worn originals can take longer or need extra steps. Call (213) 577-1366 and describe the key, and we'll tell you what to expect.
Will you copy a key stamped 'Do Not Duplicate'?
That stamp is a request from whoever issued the key, not a physical lock. We'll ask who you are and whether you're authorized, and we may decline when we can't tell. If you're a tenant, the simplest path is usually to get permission from your landlord or property manager.
How much does it cost to duplicate a key?
It depends on the key type, whether the blank is common, whether authorization is needed, how many you need, and whether you come to us or we come to you. A standard house key is usually the more economical route. Call us with the key's details for a quote.
Can you duplicate a high-security or restricted key?
Sometimes. These keys are built so they can't be cut from just any blank, and many require authorization, a registered card, or the manufacturer. We'll tell you before we start whether it can be done here or has to go through the maker, and we won't cut a lookalike that won't work properly.
Do you make mailbox key copies?
Yes, if you still have a working key. Mailbox keys vary by building, so tell us what you have. If the key is lost entirely, a copy isn't possible and the lock itself would need replacing.
Why does my new copy stick or feel rough in the lock?
Common causes are a wrong blank, leftover burrs, or a worn original that passed its wear to the copy. In Van Nuys summers, a swollen wood door can also make a lock bind regardless of the key. Bring the key and the original back and we'll check which it is.
Can I get a copy if I've lost my only key?
Not a copy, since there is nothing to copy from. In that case you'd need the lock opened, and then a new key made or the lock changed. Tell us your situation by phone and we'll point you to the right service.
Can a tenant copy an apartment key?
Often, but it depends on your lease and your building. Some buildings restrict copies, and we may ask about authorization first. Getting your landlord's okay beforehand avoids any problems later.
Do you handle key duplication for offices and storefronts in Van Nuys?
Yes. We cut keys for suite doors, back rooms, storage, and cabinets, and we can handle larger sets. If your building uses a master key system, let us know first so we handle those keys carefully.
More locksmith help in Van Nuys
Key Duplication near Van Nuys
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
