Why does a copied key sometimes not work?
Most duplicate keys that fail were not cut badly so much as copied badly. A key copy is only as good as the key it is traced from. If your original is worn smooth from years of daily use, a duplicate made from it inherits that wear, and a copy of that copy drifts a little further from the factory cut. Eventually the key drags in the lock, needs a jiggle, or works on the front porch but not at the back door.
Other causes are simpler. The wrong blank gets used because it looks close enough. The cut depths are a hair off. Burrs left over from cutting never get cleaned away, so the key grinds against the pins inside the cylinder. A good key cutting service avoids all of this by matching the blank to the keyway first, cutting cleanly, deburring the edges, and testing the result in a real lock whenever that is possible.
That testing step is why we like to see the lock, or at least the original key, when we make a spare house key. If your only key is already tired, we may suggest starting from a cleaner reference rather than copying a copy of a copy. It is a small decision, and it saves you a second trip.
How do we duplicate a key, step by step?
Whether it is a plain house key or something more particular, the process has the same shape. You can call (213) 577-1366 at any hour and tell us what you want copied. We will tell you whether it is a job we can do on the spot or one we need to look at first.
- Identify the key. We read the brand stamped on the bow, the keyway profile, and the pattern of cuts to work out what kind of key it is and whether it is a standard or restricted type.
- Match the blank. The blank has to fit the keyway exactly. A blank that is merely close is how keys end up sticking or snapping.
- Inspect the original. We look for wear, bends, and cracks. A bent key copied faithfully gives you a bent copy, so we straighten or replace the reference where we can.
- Cut and deburr. We cut the new key to the original's pattern, then clean the edges so it slides smoothly and does not scuff the pins.
- Test and compare. We try the copy in the lock when the lock is available and check it against the original. If something feels off, we fix it before you leave with the key.
- Label and hand back. We suggest a simple way to tell your keys apart, because a ring of identical brass keys is its own kind of problem.
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Call (213) 577-1366Which house, apartment, and deadbolt keys can we copy?
Most residential keys are straightforward: the standard keys that run knobs, handlesets, and deadbolts. A house key copy, a spare house key for a family member, and a duplicate deadbolt key are everyday work for us. If your knob key and deadbolt key are different, bring both. Many homes have two separate keys, and people often copy only one and find out at the worst moment.
An apartment key copy comes with one extra question: who controls the lock? In a rental, your lease may require the landlord or property manager's permission to copy keys, and some buildings use restricted keyways for exactly that reason. If the building allows copies, we make them. If a key clearly belongs to a system you are not authorized to use, we will not cut it, and we will point you toward the right person to ask.
A few habits make copying go better:
- Bring the original key, not a photo. A picture cannot be cut accurately.
- Copy the key you use least as well. The seldom-used side-door, shed, or garage key is the one that goes missing when you need it.
- Tell us which lock each key opens. It helps us test the copy and label it properly.
- Mention any key that has been sticking. That can be a sign the lock needs attention, not just the key.
What about office, commercial, and mailbox key duplication?
Office key duplication is a different conversation from copying a house key, mostly because of control. Who holds a key to the front door, the supply room, and the filing cabinets is a security decision. When we handle commercial key duplication, we ask how many copies already exist and whether anyone who holds one has moved on. If the answer is unclear, cutting more keys only adds to the problem. A master key system may be the cleaner answer, and we cover it on its own page.
Mailbox key duplication is smaller but fussier. Mailbox keys are tiny, and many are stamped with a code. Cluster boxes and apartment mail banks are often controlled by the postal service or by the property, so check who holds authority before assuming a copy is allowed. For a private mailbox with an ordinary lock, we can usually cut a copy.
If the key is lost entirely or the lock is damaged, copying is no longer the answer, because there is nothing to copy from. In that case the fix is a new lock, which is covered under mailbox lock replacement.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Can high-security and restricted keys be duplicated?
Sometimes, and it depends on the system. High security key duplication covers keys that are harder to copy than standard brass: a more complex cut, milling along the side of the blade, or a protected blank that is only supplied through authorized channels. Restricted key duplication is a related idea. The manufacturer or the facility limits who can order copies, usually through a card, a registered account, or both.
In practice, that sorts into three groups. Some high-security keys we can cut ourselves once we confirm the right blank. Others can only be made through the manufacturer's authorization process, so we need your proof of authorization and the job takes longer. A few are effectively dealer-only, and in those cases we tell you plainly rather than hand you a copy that will not work or should not exist.
A stamp reading 'Do Not Duplicate' is a request, not a technical barrier, on most ordinary keys. We use judgment, and we may ask a few questions about who owns the key before cutting it.
If your real goal is a lock whose keys cannot be copied freely at any hardware counter, that is a lock project rather than a copying one. Our page on high-security locks explains the options.
What affects the cost of key duplication in Lake View Terrace?
We do not put numbers on a web page, because key work varies too much for a single figure to mean anything. What we can do is explain what moves the cost, so a quote over the phone makes sense to you.
When you call (213) 577-1366, tell us the key type and how many copies you need, and we will explain the cost for your situation before we start cutting.
- Key type. A plain brass house key sits at the lighter-cost end. Restricted and high-security keys cost more because the blanks are harder to source and the cutting is more exacting.
- Number of copies. Cutting several keys in one visit is usually the more economical route compared with returning for each one.
- Where the work happens. Cutting at our Westwood storefront is the lighter-cost option if you can get there. Having a van come to you adds the cost of the trip.
- Authorization steps. Restricted systems may need paperwork or manufacturer approval, which adds time and handling.
- Time of day. An overnight call is handled differently from a daytime booking, and for a spare key that can wait, daytime is usually the more economical route.
- Condition of the original. A badly worn or bent key may need extra work, or a fresher reference, before a good copy is possible.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How do ranch lots and Foothill Boulevard apartments shape key copying in Lake View Terrace?
Lake View Terrace is semi-rural, and that changes what people ask us to copy. Many homes in ZIP 91342 are 1950s to 1970s ranch houses, plenty of them on horse-zoned lots with barns, corrals, and long gated driveways. One household can carry a surprising number of keys: front door, deadbolt, side door, gate padlock, barn lock. Along the Wentworth Street equestrian corridor, gate and barn lock service is a familiar kind of call. When another family member needs access to the gate and the barn, the usual answer is another copy of each key.
Dust is the local wrinkle. Strong seasonal Santa Ana winds push grit through the Hansen Dam basin, and it can foul exterior gate locks and padlocks. A key used daily in a gritty padlock wears faster, and a worn key that gets copied again only gets worse. If you are in the Hansen Dam area or up toward the Little Tujunga Canyon area, copy from a clean, undamaged original before it wears further. If the lock is already stiff, gate lock repair deals with the lock itself. Also, summer sun can dry out wood doors on unshaded lots. A key that feels stiff on only one door may be a door alignment problem rather than a key problem.
The Foothill Boulevard corridor brings the other common request: an apartment key copy for a roommate, a partner, or yourself. Check your lease first, since complexes often control their keys. Canyon-edge parcels near Shadow Hills and Kagel Canyon are larger and more exposed, which usually means more outbuildings and more keys, so the same advice applies.
Our storefront is in Westwood, about 21 miles from Lake View Terrace, so many people here prefer that we come out. That is where mobile key duplication makes sense, and it is covered in more detail on our mobile locksmith page. For some unusual or restricted keys we may need to finish the cutting back at the storefront, and we will say so up front.
When is a copy not the right fix?
A duplicate is the right answer when you still have a working key and want more of them. It is the wrong answer in a few common situations, and we would rather say so than cut keys you do not need.
If you have lost keys, or you do not know who has copies, another copy leaves the real problem in place. Having the lock rekeyed makes every old key useless and gives you a fresh set. If a key has snapped off in the lock, no copy will help until the broken piece is out, which is covered under broken key extraction.
Car keys with electronic parts are also a different job from cutting a plain metal key. They sit under our automotive work, and you can start with car key replacement. For vehicles we confirm what is needed by VIN or in person rather than guessing.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Why call Wilshire Lock & Key for key copying?
We have been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties, Lake View Terrace included. We run a storefront at 10740 Wilshire Blvd in Westwood plus mobile service vans, so you can bring keys to us or have us come to you. When you call (213) 577-1366, you reach our own company rather than a dispatch middleman who passes your job to whoever is free. The phone is answered 24 hours a day, 7 days a week, year-round.
David, the owner and lead technician, oversees the work. For key copying that mostly means the small things being done right: the correct blank, a clean cut, and an honest answer when a key cannot or should not be copied.
California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith you hire for it, including us. It is a fair question and a good habit.
Frequently asked questions
Can you copy keys at my home in Lake View Terrace?
For many standard keys, yes. Our mobile vans can come to you, which suits the ranch lots and canyon-edge properties where driving to Westwood is a hassle. Some restricted or unusual keys may need to be finished at our storefront, and we tell you that when you call (213) 577-1366.
How long does key duplication take?
A standard house key is quick work once we have the original in hand. Restricted and high-security keys take longer, since they may need blank sourcing or authorization. We will tell you which category your key falls into when you call.
Can you copy a key marked 'Do Not Duplicate'?
Often the stamp is a request rather than a technical barrier, but we do not copy blindly. We ask about ownership first, and if the key belongs to a controlled system, we may need proof of authorization or we may decline.
Can you make a copy if I only have a lost key and no original?
Copying needs something to copy from. Without a key, the options are different jobs, such as making a key from the lock itself where that is possible, or rekeying the lock. Call us and describe the lock, and we will say which route fits.
Can I copy my apartment key on Foothill Boulevard?
That depends on your lease and the building. Many complexes control their keys and may use restricted keyways. Ask your manager first. If copies are allowed, we can usually help; if they are not, we will not cut a controlled key.
Can you duplicate a mailbox key?
For a private mailbox with an ordinary lock, usually yes. Cluster boxes and apartment mail banks are often controlled by someone else, so confirm who holds authority. If the lock is damaged or the key is gone entirely, a replacement lock is the better fix.
Do you copy car keys?
Plain metal car keys can be copied in some cases, but keys with electronic parts fall under our automotive work. For vehicles we confirm what is needed by VIN or in person rather than assuming.
My new copy sticks in the lock. What should I do?
Do not force it. A copy that sticks is usually a blank, cut, or deburring problem, or a sign the original was worn. Bring both keys to us and we will find which one is causing it. Grit in the lock is another common cause around the Hansen Dam basin.
Can I get a spare key made late at night?
Our line is answered around the clock at (213) 577-1366. If a key is truly urgent, call and we will help. For a spare that can wait, a daytime booking is usually the more economical route.
More locksmith help in Lake View Terrace
Key Duplication near Lake View Terrace
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
