Claremont, Los Angeles County
High Security Key Duplication in Claremont: Angled, Dimple and Sidebar Keys
Short answer: Some high security keys can be cut in one visit; others must be ordered from the maker, which takes days rather than minutes. We tell you which applies before you commit, and we never copy from a photo. Julian's Locksmith works every day from 6:30 a.m. to 11:30 p.m. Call (951) 903-3193 for Claremont.

You hold a key that doesn't look like the others on your ring: heavier, maybe with round dimples in its face, angled cuts or a groove down one side. You asked a hardware-store kiosk for a copy and got a shrug, or worse, a key that almost works. High security key duplication in Claremont is a different craft from ordinary key cutting, because the lock behind it was built so casual copies can't happen. Julian's Locksmith starts by identifying what you have, then tells you honestly whether we can cut it on the van, order it through the maker, or send you to the dealer who holds your records. Call (951) 903-3193.
How this works in Claremont
Sometimes a copy is the right answer and sometimes it's a distraction. If you simply need another key for someone authorized, high security key duplication is the straightforward path. If a key has been lost, stolen or kept by a former employee or tenant, a copy of what remains does nothing about the one that's out there; the real fix is rekeying or replacing the cylinder so the missing key no longer works. If your system is old or discontinued, converting to a current cylinder may serve you better than another copy of an aging key. And if the door itself is weak, the strongest cylinder in Claremont still leaves you with a hollow door and a thin strike plate. We talk through those options when we see them, then quote what you asked for. Think of a high-security key as one part of a plan: the lock, the key control and the door each need to be as serious as the others.
What we can do on-site
- Identifying the system from the key in your hand. Photos of both sides of the key, plus the lock face and any card you were given, let us narrow the system before we drive to Claremont. We won't cut from a photo, but we can arrive with the right blank, or tell you when the key has to come from the maker.
- Angled-cut keys such as Medeco. On an angled-cut key, a cut that is right in depth but wrong in angle still won't open the lock, and may wear the pins. Reading the angles carefully is the slow part. We decode each position, compare it with the system's chart and cut on equipment built for that geometry.
- Disc-detainer and multi-surface keys such as Abloy and ASSA. Keys for disc cylinders often show up on padlocks, gates and industrial equipment rather than on house doors. Bring the key and the lock if you can. The padlock body often carries the brand and series, which saves time identifying the system.
- High-security padlock, gate and cabinet keys. High-security cylinders aren't limited to front doors. Padlocks on storage rooms and gates, cabinet locks and fences on larger properties often use dimple, disc or sidebar keys. Bring the padlock or a photo of its face; the series often points straight to the key blank.
- Testing across the whole cylinder set. We test on the live cylinder: a smooth turn, no snagging at the sidebar, no extra pressure to start rotation. A well-cut copy feels like the original in the hand. We compare the two, and if the new key is rougher, we recut it before leaving.
What's different about Claremont
Student housing near California Botanic Garden rarely has high-security keys on bedrooms, but landlords sometimes use them on shared utility rooms or on a master-keyed building. Turnover is constant. Property managers should copy keys through an authorized channel, number every key, and plan to rekey when a number goes unreturned. We help owners build a simple issue-and-return routine. Even a one-page log makes next summer's turnover calmer.
Inland heat is hard on the tight tolerances that make high-security cylinders work. Lubricants thin out, dust gathers in dimples and grooves, and a key left on a dashboard can warp. Before we copy a key, we check it for heat damage, test the cylinder for dragging, and clean it. If the key has warped, we cut from code rather than from the original.
Older commercial buildings in the business district of Claremont often mix generations of hardware, with a high-security cylinder on a newer suite door and an older lock down the hall. Tenants change, and so do the people holding keys. We identify each system before we cut, check the lease for who may authorize copies, and note the building's expectations about key control first.
Common situations
- A condo board treasurer asks for six copies of a Medeco key for the storage room and expects them by evening. We'd explain that Medeco blanks are controlled, confirm the board's authority, and place the order through the proper channel, giving her the real wait up front instead of letting her count on the afternoon.
- For example, a homeowner buys a house near Claremont Hills Wilderness Park and finds the previous owners installed Mul-T-Lock cylinders, leaving a single key and no card. We'd say honestly what that means: a copy from the one key may be possible, but ownership records stay with the former owner, so many people choose fresh cylinders registered in their own name.
- A tack room on a horse property near Thompson Creek Trail uses a disc-style padlock, and the barn manager has the only key. The owner worries about a loss on a trail ride. We'd read the series on the padlock, say whether a copy can be cut on the van or ordered, and mark the spare with a number only the family understands.
- A clinic in Claremont keeps controlled supplies in a locked closet behind a high-security cylinder. The office manager needs a third key for the new nurse lead, and policy requires a log. We'd confirm the clinic's authority, cut or order the key, stamp it with a number and test it in the cylinder while she watches.
How the visit works
- Show us the key and what it opens. If the key opens a padlock or a gate lock, bring the lock or take a clear picture of its face. Series numbers and brand marks on the body of the lock often identify the key family faster than the key does.
- Confirm who holds the authority. High security systems usually release spares only to the registered owner or an authorized signer. We ask for photo ID and proof of ownership or authority, and for businesses a name on the account. If we aren't the right channel, we tell you who is.
- Inspect and measure the original. We look for features beyond the visible cuts: a milled groove on the side, a movable element in the head, a second track on the blade. Miss one and the copy turns nothing. This check also tells us whether the job is on site or an order.
- Choose the route: cut on site, order, or refer. For high security key duplication, three routes exist. If we hold the right blank and the system isn't restricted, we cut on the van. If the maker controls blanks, we order through the proper channel. If your registering dealer holds the records, we refer you and explain why.
- Cut, finish and compare. When we cut from code, the original sits aside as a comparison rather than a source. We check the new key against it feature by feature, and if the original proves worn we tell you by how much, so you can decide whether to retire it.
- Test, number and hand over. We stamp or tag each key with a number, not a name, and leave a short note of what was cut and from what source. For businesses, that note belongs in your key log with the date and the person who received the key.
How we quote the job
- Original key, code or neither. Keep the paperwork that came with your lock. A registration card or the dealer's name can turn a lengthy hunt for the specification into one phone call, and that reduces both time and cost. Even a photo of the card on your phone helps us start from facts instead of guesses.
- How many copies, and at which key level. Keys at different levels, such as a change key, a sub-master and a master, are separate jobs even within one visit. We quote by key level, so a request for copies of the master means we look at your system first.
- Timing, order lead time and the visit. We work every day from 6:30 a.m. to 11:30 p.m. A factory order placed late on a Thursday won't move until the maker is open, so plan ahead if you need keys by a particular date.
Every job gets a clear quote before any work starts. Call (951) 903-3193 with the details and we'll tell you what to expect for your situation in Claremont.
Common errors that cost time and money
- Buying a look-alike blank online and hoping someone will cut it. Imitation blanks can differ slightly in width, groove or hardness, and the difference only shows once the key is in the cylinder. Use blanks that match your system and come from a source you can name.
- Letting the card or paperwork get lost with the key set. If the same bag holds the keys and the card, one loss gives someone everything needed to order a copy. Store the registration somewhere else, and photograph the card so the photo stays off the key ring.
- Skipping the test in a second cylinder. If your system is keyed alike or master keyed, a copy that opens only one lock sits just outside tolerance. Test it everywhere it is supposed to work before you hand it out.
What to do before we arrive
- Stamp keys with numbers, not names. A number lets you track who holds which key without telling a stranger what it opens. Keep the list in your records, never on the key ring or on the tag. If a key is ever found, a bare number points nowhere.
- Use dry lubricant sparingly. Oil attracts grit, and tight-tolerance cylinders such as dimple and sidebar types hate grit. A light PTFE-type lubricant once or twice a year helps. In dusty seasons in Claremont, wipe the key as well as the lock.
- Bring the lock if it's a padlock. The body often carries the brand and series, which identifies the key family much faster than the key does, and it lets us test the new copy on the lock it was made for.
- Order spares when the lock is installed, because high security key duplication by factory order takes days, and an installer can include extra keys in the same order. Waiting until the last key is the only key is how a simple spare turns into an urgent one.
Reaching Claremont
Claremont is about 30 miles from our San Bernardino base, roughly 34 minutes in light traffic via University Parkway to I-215 South. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment.
If you're close to I-10, tell us which exit or cross street you're nearest. It trims the last mile and keeps the van from circling a block that looks right on the map but isn't.
About Claremont: City parkland totals about 2,534 acres, most of it wilderness in the San Gabriel foothills, and the paved Thompson Creek Trail runs 2.8 miles through north Claremont.
| Neighborhoods | Village expansion and Claremont Packing House, North Claremont, Pilgrim Place and Claremont Manor, South Claremont, Village South, Claraboya |
|---|---|
| ZIP codes | 91711 |
| Main routes | I-10, SR-210, Foothill Boulevard, Base Line Road |
| From our San Bernardino base | about 30 miles via University Parkway to I-215 South, then SR-210 West (Foothill Freeway) through Rialto, Fontana, Rancho Cucamonga and Upland to the Base Line Road exit for north Claremont or the Towne Avenue exit for Foothill Boulevard and the Village; I-10 West to Towne Avenue or Indian Hill Boulevard for the south side |
Home lock work in Claremont?
Call (951) 903-3193 with the address and a quick description of the doors and locks involved. We'll quote the job before any work starts.
Frequently asked questions
How can I tell if my key is high security?
Look for brand names such as Medeco, Mul-T-Lock, ASSA, Abloy or Schlage Primus, a patent notice, round dimples in the face, angled cuts, a groove along the side or a thick, heavy blade. Not every fancy-looking key is high security, and some plain-looking ones are. Show us both sides of the key and we'll tell you what it is and what a copy involves.
Do I need my registration card?
Bring it if you have it. A card, or the dealer's name on your paperwork, can turn a long search into one phone call, and many systems release spares only to the registered owner. If you don't have it, we can still identify the system and tell you which steps remain open, including contacting the dealer or moving to a cylinder you control.
Why does a high security key cost more than a regular one?
High security key duplication costs more because proprietary blanks cost more, the cutting takes more setups and inspection, and controlled systems add paperwork and handling. A single row of dimples is simpler than angled cuts plus a slider. We quote after seeing the key, and the number we give you before work begins is the number we expect to bill unless the job changes on site.
What hours do you offer high security key duplication?
We work every day from 6:30 a.m. to 11:30 p.m., and we're closed overnight. Factory orders ship when the maker is open, so plan around that if you need keys by a date. Call (951) 903-3193 and we'll give you a realistic timeline for your Claremont address.
What ID will you ask for?
A photo ID and proof that you're authorized to approve the copy: ownership of the property, a lease with the owner's okay, or a business account and your role in it. For controlled systems, the registered party's details matter too. We verify before cutting, because a locksmith who copies these keys casually isn't doing the job properly.
How long does high security key duplication take?
If we can cut your key on the van, the copy happens during the visit, along with inspection and testing. If the maker must supply the key, the order takes days rather than minutes, and sometimes longer for unusual profiles. We give you an honest estimate before you commit and never order anything until you've approved it.
How far is Claremont from your base?
Claremont is about 30 miles from our San Bernardino base, roughly 34 minutes in light traffic. Arrival time depends on traffic and on the job the technician is finishing, so we give you an estimate on the phone before you commit.
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