What do high security locks actually do?
A standard pin-tumbler lock from a hardware store can be opened by a trained person with simple tools, and many can be opened by bumping, which uses a specially cut key and a light tap. A high security lock is built to make those methods slow, difficult, or impractical. The cylinder uses tighter tolerances, additional or specially shaped pins, hardened inserts, and in many designs a second locking element that has to be moved at the same time as the pins.
The second half of the system is the key. High security cylinders usually come with a restricted keyway, which means blank keys are not sold over the counter and copies require authorization from whoever owns the key records. That is what stops a former tenant, contractor, or employee from quietly making a copy at a kiosk.
We want to be straight about the limits. No lock is pick-proof, and the word you should hear is resistance, not immunity. A pick-resistant, bump-resistant cylinder raises the skill, time, and noise an intruder needs. It does not change what a crowbar does to a weak frame or a hollow door. We will tell you which one your door needs, even if the answer is a smaller job than you expected.
- Pick-resistant: the internal parts are shaped and arranged to frustrate standard picking tools.
- Bump-resistant: the cylinder is designed so that a bump key does not align the pins.
- Restricted keys: blanks and duplication are controlled, so copies are not casual.
- Drill and tamper resistance: hardened inserts in the cylinder protect against forced attack on the lock face.
Is a high security lock the right fix for your Claremont door?
Most people call us after something has happened or after something has changed: a break-in on the street, a tenant who never returned a key, an employee who left on bad terms, or a house that has had many hands through it over the years. In each of those cases the real problem is key control as much as lock strength, and a restricted-key cylinder addresses both at once.
There are also cases where it is not the first thing we recommend. If your door is thin, the strike plate is held by short screws, or the frame is split, a better cylinder will not rescue it. We would fix the door first or alongside the lock. And if you only need to stop an old key from working, ordinary rekeying is the lighter-cost route, which is why we describe lock rekeying as a legitimate alternative rather than pushing the upgrade every time.
A quick way to decide: ask whether you are worried about someone with skill and patience, or about someone who has a key they should not have. High security hardware earns its place in the first situation and is very useful in the second, because restricted keys make unauthorized copies hard to produce.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366How do we install or replace high security locks, step by step?
Whether it is a new installation or a high security lock replacement, the process is the same. We keep it unhurried because the details are what make a good cylinder perform like one.
- You call (213) 577-1366. A person answers, any hour, and we ask what door it is, what lock is on it now, and what worries you.
- We talk through the options by phone so you know what to expect before a van heads out. Our mobile service comes to you in Claremont, and we work from our Westwood storefront as a base.
- On site we inspect the door, frame, strike plate, and hinges, not just the lock. We tell you plainly if something else needs attention.
- We choose the cylinder or lock body that fits your door preparation and your needs, and explain what makes it pick-resistant and bump-resistant, and who controls key duplication.
- We install the hardware, check the bolt throw, and confirm the door closes and locks smoothly without forcing the latch or bolt.
- We cut and test your keys, explain the key-control arrangement, and tell you how to order extra keys properly.
- We go over care for the cylinder and answer any remaining questions before leaving.
How do restricted keys and key control work?
The cylinder is only half of the security. Restricted key systems tie a key to a record: the keyway profile is controlled by the manufacturer, and duplicates are cut only for the authorized person who holds the registration card or account. Some systems add a patent on the key design, others add a security card or an account on file. The precise arrangement depends on the product, and we will explain the one that fits your lock when we recommend it.
Be aware of the trade-off. A restricted key is deliberately harder to copy, which means getting an extra one takes a little more effort than walking into a corner kiosk. For a household, that usually means ordering the spares you will need up front. For a business or landlord, it means deciding in advance who is allowed to authorize copies.
If you already hold keys that are not restricted, they can still be handled through ordinary key duplication. The restricted-key system applies to the new cylinder, and we help you plan how many keys to cut at installation so you are not scrambling later.
- Decide who in your household or business is allowed to authorize new keys.
- Keep any registration card or account information somewhere safe and separate from the keys.
- Order spares at installation if you can, so you are not hunting for a key when you are locked out.
- Tell us if a key is lost; we will explain whether the lock can be rekeyed or the cylinder should be replaced.
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 high security lock installation in Claremont?
We do not quote numbers in a web page, because the honest answer depends on your door, and a price over the phone without the facts would be a guess. What we can do is tell you exactly what moves the cost, so you can judge a quote from us or from anyone else.
A realistic quote accounts for several things at once, and a locksmith who skips any of them is probably leaving a surprise for later.
- The lock itself: a restricted-keyway cylinder that fits an existing deadbolt is a different job from a complete high security deadbolt or a mortise lock body.
- How many locks and keys: a whole-house change to one restricted key family involves more cylinders than a single front door.
- Door and frame condition: if the door needs boring, the strike needs reinforcement, or the frame is damaged, that work adds to the job.
- Residential or commercial: commercial doors can involve heavier hardware, different cylinder types, and more keys.
- Hardware brand and key-control level: the more tightly controlled the key system, the more it typically costs to set up.
- Timing and location: after-hours calls and travel from our Westwood base to Claremont are part of the picture, and we are open about that on the phone.
- Whether you are replacing or adding: replacing a failed or compromised lock differs from a first-time installation on a new door.
What should Claremont homes and buildings consider for high security locks?
Claremont is not one kind of housing, and the right lock depends on the door in front of you. The city's stock ranges from Victorian, craftsman, and Spanish revival houses near the Village to mid-century tracts, custom homes, hillside houses in Claraboya, and faculty and student housing around the Claremont Colleges. Some of those are in the 91711 ZIP code alongside everything else in town, and each calls for a different approach.
In the Russian Village District and other historic neighborhoods, owners often want to preserve original or period hardware. High security work there is usually about the cylinder, not the whole lock. Where the existing mortise or rim hardware accepts a standard-size cylinder, we can often swap in a pick-resistant, bump-resistant one and keep the look of the door. We check that on site rather than promising it from a photo, and if a piece of hardware is too worn to rely on, we say so and discuss the options.
Around the Claremont Colleges, off-campus student housing turns over often, and each turnover leaves unaccounted-for keys. A restricted-key cylinder stops casual copies from drifting out of the building, which is a different benefit from a one-time rekey. Owners who manage several rentals may want to read about locksmith services for landlords as well.
Up in Claraboya, Padua Hills, Towne Ranch, and the North Claremont foothills, houses are often a bit more secluded, so a break-in is likelier to be quiet and unobserved. That is where pick and bump resistance matter most, together with solid strikes and frames.
The climate matters too. Claremont's foothill position brings hot, dry summers and strong Santa Ana wind events, and heat makes wood doors expand. A swollen door that binds against its frame puts strain on a deadbolt and can make any lock feel stiff. We check alignment when we install. Wind-driven debris also finds its way into cylinders, so ask us how to keep yours clean. Claremont is about 44 miles from our Westwood storefront, so we plan each visit carefully by phone first.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What about commercial security locks for Claremont businesses?
Merchants in Claremont Village and offices elsewhere in town have different needs than a household: more employees, more keys, and a higher cost when a key ends up in the wrong hands. Commercial security locks make sense on back doors, stock rooms, server or records closets, and any door where a copied key would be a real exposure.
A restricted-key cylinder gives you something a standard lock cannot: a way to control who can authorize additional keys. If you have several doors, a key system lets each person carry one key for the doors they need. That is a separate design discussion, covered under our master key system work, and we can coordinate the two so the restricted cylinders fit into a system you can actually manage.
For broader needs such as door hardware, closers, and access control, we handle commercial locksmith work as a whole. We keep this page about the cylinders and keys themselves, but we will look at the door they are fitted to so the lock is not the strongest part of a weak opening.
Why call Wilshire Lock & Key?
We have been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties, Claremont among them. We run a real storefront at 10740 Wilshire Blvd in Westwood and mobile service vans, so the people who talk to you are part of the same company that does the work. There is no dispatch middleman passing your call to a stranger.
David is the owner and lead technician, and he oversees our work. If you ask a question about a cylinder, a keyway, or an old door, you get a direct answer, including when the honest answer is that a cheaper fix would do the job.
Ask any locksmith about their license. California requires locksmith companies to hold a BSIS LCO license, and you are entitled to ask for the number, including from us. If you are weighing a high security installation, the person doing it should be willing to explain what they are installing and why.
Our phone is answered 24 hours a day, 7 days a week, all year, at (213) 577-1366. If a lock fails or you are shut out in the middle of the night, our emergency locksmith service is the same company and the same number. Some customers also add a smart lock later, and we can tell you how that fits with a restricted cylinder.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What should you have ready when you call?
A few details make the first conversation faster and the quote more accurate. You do not need technical knowledge; a description and a photo are often enough to start.
Tell us what door it is, whether it is an entry, a back door, a garage service door, or an office door. Tell us what is on it now, and if you can read a brand on the lock or the edge of the door, that helps. Mention whether the door is wood, metal, or glass-paneled, and whether the frame looks solid.
Tell us what prompted the call, such as a break-in nearby, a lost key, a tenant turnover, or an upcoming business change. The reason shapes our recommendation. And tell us how many keys you will need, because restricted keys are best ordered at the start.
If you are already locked out, say so first. We will deal with getting you inside and talk about the upgrade afterward, because a clear head makes a better decision about hardware.
Frequently asked questions
What is the difference between a high security lock and a regular deadbolt?
A regular deadbolt mainly resists force and has a standard keyway that anyone can copy. A high security lock adds pick and bump resistance in the cylinder and a restricted key you cannot copy casually. The door and frame still need to be solid for either to work well.
Are pick-resistant locks really pick-proof?
No. Pick-resistant means the lock takes much more skill, time, and specialized tools to open without a key. No honest locksmith will call any lock pick-proof. What the cylinder does is raise the effort an intruder needs, which is often enough to make them move on.
Do bump-resistant locks stop bump keys?
They are designed to. Bump-resistant cylinders use pin arrangements or additional elements so that a bump key does not align the lock the way it would a standard cylinder. We explain which feature your chosen lock uses so you know what you are paying for.
Can you put a high security cylinder in my existing door hardware?
Often, yes. If your existing deadbolt or mortise lock accepts a standard-size cylinder, we may be able to swap in a high security one. We check the hardware on site, because an old or worn lock body may be better replaced entirely.
Can a high security lock fit the original hardware on a historic Claremont home?
In many cases we can replace only the cylinder and leave the original look intact. It depends on the hardware's size, age, and condition. We inspect before recommending anything, and if the piece cannot be safely preserved we explain the options.
How do I get extra copies of a restricted key?
Restricted keys are copied through an authorized process tied to the lock's key records. We tell you how it works for your specific lock and recommend ordering the spares you expect to need at installation, so you are not waiting on a copy later.
Should I rekey instead of installing a high security lock?
If your concern is simply that someone else has an old key, rekeying is usually the more economical route. If you also want pick and bump resistance or tighter control over copies, a high security cylinder is the better fit. We will tell you which one suits your situation.
Do high security locks work for student rentals near the Claremont Colleges?
They can help. Because restricted keys are hard to duplicate casually, you cut down on stray copies when tenants change. It does not replace a rekey when someone does not return a key, so we plan around how often your rental turns over.
Can you install high security locks at night or on a weekend?
Our phone is answered around the clock, every day of the year, at (213) 577-1366. For urgent situations we can arrange service after hours, and for planned upgrades we will talk through the timing that works for you.
How do I know a locksmith is legitimate?
Ask for the BSIS LCO license number, which California requires for locksmith companies, and ask who will actually come to your door. Ask us the same questions. A legitimate locksmith will answer them directly and explain the work before starting.
More locksmith help in Claremont
High Security Locks near Claremont
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.