Why does a careful key copy matter?
A spare key looks like the simplest job a locksmith does, and in a way it is. But the gap between a copy that runs smoothly for years and one that sticks, snags, or eventually snaps off in the lock comes down to small things: how clean the blank is, how accurately the cuts are made, and whether the original was in good shape to begin with.
Most bad copies come from the same few causes. The blank is the wrong profile for the keyway, so it enters the lock but never seats properly. The cuts are a hair off because the key was clamped loosely or the cutter was dull. The original was itself a copy of a copy, so each generation carries a little more error than the last. Or burrs were left on the cut edges, which slowly chew up the pins inside your lock.
None of this shows up in the hardware store aisle, and it rarely shows up until the day you need the spare most. We cut keys at our Westwood storefront, 10740 Wilshire Blvd, and in our mobile service vans, and we would rather spend a little extra care on a copy than have you discover at your front door after dark that it only works if you jiggle it.
How do we duplicate a key, step by step?
The process is not complicated, but each step has a purpose. Here is how a typical house or office key copy goes at Wilshire Lock & Key.
Whenever the lock itself is with us, or we are standing at your door, we test the finished copy in it. That is the only test that really counts, because a key can look identical to the original and still bind in a lock that has worn to fit the old key.
- Identify the key. We read the brand, the keyway profile, and any stamping on the bow, and we check whether it is a standard key or a restricted one that needs authorization.
- Inspect the original. Bent, cracked, or heavily worn keys get flagged. A badly worn original makes a poor template, and if that is your situation we will say so and suggest an alternative rather than cut a key we do not trust.
- Match the blank. We choose a blank with the correct profile, length, and shoulder or tip stop, because a blank that is almost right is a common cause of copies that never feel right.
- Cut the copy. The original and the blank are clamped square and the cuts are traced to depth and spacing.
- Deburr and clean. Rough edges come off so the copy does not scrape brass shavings into your lock.
- Test and compare. We run the copy in the lock where we can and compare it against the original so the two feel the same.
- Hand over and advise. We suggest labeling the keys and keeping one as a master you do not carry daily, so the next copy is cut from a key in good shape.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What kinds of keys can we copy?
Most keys people bring in fall into a handful of groups. Here is how we treat each one, including the cases where a simple copy is not possible or not appropriate.
- House keys and spare house keys: standard pin-tumbler keys for entry knobs, lever handles, and handlesets. This is the everyday job, and the one where cutting from a clean original makes the biggest difference.
- Duplicate deadbolt keys: a deadbolt often takes a different key from the knob below it, so bring both. If a deadbolt key binds even when it is freshly cut, the problem is often the lock or the door alignment rather than the key.
- Apartment key copies: unit keys, mailbox keys, and keys to shared entries. Many buildings stamp keys with a do-not-duplicate notice. That stamp is a request from the property, not a technical barrier, so we will ask about your authority to copy it. A word from your property manager settles it.
- Office key duplication and commercial key duplication: door keys, desk and file cabinet keys, and keys for suite entries. If your business runs a keyed system with levels of access, copies should come only with approval from whoever manages that system. We cover those setups on our master key system page.
- Mailbox key duplication: mailbox keys are small and specific to the lock. If the box belongs to the Postal Service or your building, the owner decides who gets copies. If you have lost every key to a box that you control, a new lock is often the cleaner route, which is covered under mailbox lock replacement.
- High security key duplication and restricted key duplication: patented or restricted keyways are designed so that copies cannot be cut casually. Depending on the system, a copy may need an authorization card, the registered owner, or an order through the manufacturer or dealer channel. We confirm what your particular system requires before we promise anything. Our high-security locks page explains how these systems differ.
- Car keys: a car key with electronics inside is a different job from a door key. We confirm those by VIN and in person, and we do not guess over the phone.
What affects the cost of key duplication?
Key copying is usually among the more economical things a locksmith does, but the final cost still depends on what you bring us. We will not quote a number in a web page, because the honest answer varies. Here is what moves it.
If you can bring the keys to our Westwood storefront, that is usually the lighter-cost option, since no one needs to drive out to you. Reseda is about 17 miles from our base, so a trip to your door is a real consideration, and we would rather tell you that on the phone than surprise you later.
- Key type: a common brass house key is straightforward. Restricted and high-security keys involve special blanks, authorization steps, and sometimes ordering from the maker.
- Blank availability: some profiles are easy to stock, others are not. A hard-to-find blank means extra work or a wait.
- Number of copies: a single spare and a set for a whole household or office are different jobs.
- Condition of the original: a clean original is a simple cut. A worn or damaged one may need extra work, or a different method altogether.
- Where the work happens: a storefront visit versus a mobile trip, and the distance and time of day for the latter.
- Authorization: restricted keys may need paperwork or verification before we can proceed, and that is part of the job, not an upsell.
- Special keys: a few older or unusual keys take more time than a standard copy.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Can you come to me for mobile key duplication?
Often, yes. Wilshire Lock & Key runs mobile service vans as well as a storefront, and many key jobs make sense at your door, especially when you have several keys to handle or a lock you want tested with the new copy. Which key types suit the van and which are better handled at the shop depends on the key itself, and we will tell you on the phone rather than send someone out for a job that belongs on the bench.
If your main need is a spare and you are able to get to Westwood, the storefront is usually the more economical route. If you cannot leave the house, work, or building, or if the job involves several locks, a mobile visit saves you the trip. You can read more about how that works on our mobile locksmith page.
A key copy is rarely an emergency, but our phone is answered around the clock, so you can call at (213) 577-1366 whenever it occurs to you. If you are locked out right now, that is a different situation, and we will handle it as one.
What does key duplication look like in Reseda?
Reseda, ZIP 91335, was one of the Valley's first mass-built postwar suburbs, and most of its housing is single-story 1940s and 1950s stucco tract homes on uniform lots. Key needs here follow that housing. Homes of that age have usually had their hardware replaced a piece at a time, so the keys on one household's ring often belong to a mix of locks installed in different decades: a front knob, a deadbolt, a back door, a side gate. Many buildings also predate the 1994 Northridge earthquake and have seen repairs since. If you have inherited a ring of unmarked keys in Reseda Ranch, near Reseda Park and the LA River area, or anywhere along the Sherman Way, Reseda Boulevard, Victory Boulevard, Saticoy Street, or Tampa Avenue corridors, the first job is often sorting which key does what before copying any of them.
A common Reseda scenario is a tract home at sale or tenant turnover. Extra copies of the old keys are out there, and you cannot count them. We copy what you need, but if you cannot account for the old keys, copying more of them is the wrong move. Rekeying the locks so the old keys stop working is the better answer, and then we cut fresh copies of the new key for everyone who should have one.
Older single-family homes often have security screen doors with their own lock, and a separate key for it that people tend to forget until they need it. If you are having spares made, bring that key too.
Older apartment buildings line Sherman Way, Vanowen, and Saticoy, and security screen doors and shared entries are widespread there. A tenant copying a unit key is one thing, but a shared entry key belongs to the building. We will ask about your authority to copy it, and a property manager's okay is enough. If you own or manage rentals, our locksmith for landlords page covers how to handle keys across turnovers. If you have lost the only key to your unit, that is a lockout rather than a copy, and our apartment lockout page is where to start.
In Downtown Reseda, around Sherman Way and Reseda Boulevard, and along the Reseda Boulevard commercial strip, small businesses need office key duplication for new staff, a second set for the owner, or a spare kept off site. We handle those the same way as home keys, with the added question of who is authorized to request copies.
There is also the climate. The central Valley floor has hot, dry summers and cool winter nights. That swing works on wood doors and frames season to season, and in aging postwar homes it shows up as sticking latches and strike misalignment. If a new key seems to stick, it is not always the key. We will check whether the door is the real culprit before you blame the copy.
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 copies?
We have been in business since 1987, and key cutting is a trade where that history shows. We serve 140 cities across Los Angeles and Ventura counties, from a storefront at 10740 Wilshire Blvd in Westwood and from our mobile vans.
When you call (213) 577-1366, you reach us, not a national call center that passes your job to whichever contractor is available. One company handles the call, the cutting, and the follow-up. David, the owner and lead technician, oversees the work, which means a question about a odd key or a restricted system gets a real answer from someone who has handled it before.
One more point worth knowing, whoever you hire: California requires locksmith companies to hold a BSIS LCO license, and you are entitled to ask any locksmith for it before they work on your locks. Do that every time. It is a reasonable question, and a legitimate locksmith expects it.
When is a copy not the right answer?
Sometimes the honest advice is not to copy anything. A few situations come up often enough to be worth naming.
- You do not know who has copies. If a former tenant, contractor, or ex-partner may still have a key, rekeying is the fix, not another copy.
- The original is worn out. A copy cut from a tired key inherits its wear. If the key is badly worn, we may suggest cutting a fresh one from the lock's key code or another better source, where that is possible.
- A key has broken in the lock. Do not try to glue it or pull it with pliers. Keep any piece you have and see our broken key extraction page.
- The lock itself is failing. If even the original key is hard to turn, a new copy will not fix it. The lock or the door alignment needs attention first.
- It is a restricted key and no one is authorized. We cannot copy it just because you ask nicely. We will tell you what the system requires, and what the next legitimate step is.
Frequently asked questions
How long does a key copy take?
A standard house key is a quick job on the machine, but we do not promise a time over the phone because it depends on the key. A common brass key is simple, while a restricted key can involve authorization or ordering. Call (213) 577-1366 and we will tell you which one yours is.
Can you copy a key stamped Do Not Duplicate?
Often yes, with the right authorization. That stamp is a request from whoever issued the key, not a physical barrier. We will ask about your authority to copy it. If it belongs to your landlord or building, a word from the property manager is usually enough, and we prefer to have it.
Do you copy high security or restricted keys?
It depends on the system. Some can be copied with an authorization card or the registered owner present. Others have to be ordered through the manufacturer or dealer channel. We confirm what your specific system requires before we say yes, so you do not get a promise we cannot keep.
My only key is worn. Can you still copy it?
Often, but we will look at it first. A badly worn key makes a poor template, and a copy may inherit the problem. If the original is too far gone, we may suggest another way to produce a good key, and we will explain the options before we do anything.
Can you duplicate a mailbox key in Reseda?
Usually, if the key is a standard mailbox key and the box is yours to manage. If the box belongs to the Postal Service or your building, the owner decides who gets copies. If you have lost every key, a new lock may be the cleaner fix.
Can I get copies of my rental unit key?
Yes, as long as you are authorized to copy it. A unit key is usually fine. Keys to shared entries belong to the building, so we may ask for the manager's approval. If you manage the property, we can help you work out a system for handling keys at turnover.
Do you copy car keys?
This page covers door, mailbox, and similar keys. Car keys with electronics inside are a different job, and we confirm those by VIN and in person rather than guess over the phone. Call us with the vehicle details and we will tell you what applies.
How many spare keys should I have?
Enough that one lost key is an inconvenience, not a lockout. For most households that means one spare kept somewhere safe off the main ring, plus a copy for each person who lives there. Keep one key as a master you do not use daily, so future copies come from a clean original.
Can I call at night about key duplication?
Yes, our phone is answered 24 hours a day, 7 days a week at (213) 577-1366. A copy is rarely an emergency, but you can call whenever it is convenient and we will tell you what to bring and which option suits you.
More locksmith help in Reseda
Key Duplication near Reseda
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
