What is a high security lock, exactly?
A standard pin-tumbler cylinder from a hardware store is built to a price point, and its basic design hasn't changed much in decades. A high security cylinder is built differently. It has tighter tolerances, extra security pins shaped to snag and false-set when someone picks the lock, hardened inserts that make drilling harder, and a keyway that is restricted. Restricted means the key blanks aren't sold over the counter and copies require authorization.
When people search for high security locks, they usually mean one of three things. The first is a pick-resistant and bump-resistant cylinder fitted into the deadbolt they already have. The second is a complete high security deadbolt with a reinforced body and a better-built bolt. The third is a restricted key system, where you control who can ever make a copy. We install all three. Most single-family homes need the first, and some need the second. Our deadbolt installation work covers the cases where the whole deadbolt, not just the cylinder, should change.
- Pick-resistant: security pins and tight tolerances make manipulating the cylinder with picks slow and difficult.
- Bump-resistant: the pin design resists the sharp-impact trick that opens many ordinary cylinders in seconds.
- Drill-resistant: hardened inserts protect the shear line from being drilled out.
- Key control: a restricted keyway means copies are not available at a corner kiosk.
Why is the lock on an older Ladera Heights house often the weak point?
Ladera Heights was built out mainly in the 1940s through the 1960s, and many homes here still carry their original-era locksets and garage side-door hardware. Those locks were designed long before bump keys and cheap pick tools were widely known. A cylinder that old has also had decades of wear, which loosens its tolerances and makes it easier to defeat than it was when new.
There is a second problem that has nothing to do with the metal: nobody knows how many keys exist. A house that has changed hands, been rented, had contractors in and out, or simply been lived in by a big family for thirty years may have keys in a dozen places. Rekeying fixes the key problem, but if the cylinder itself is a basic design, you have only reset it to the same level of protection. A restricted high security cylinder addresses both problems at once: it is harder to defeat, and extra keys are hard to come by.
How do we handle a high security lock installation, step by step?
Every door is a little different, so we look at the door before recommending hardware. This is the usual sequence.
- You call (213) 577-1366 and tell us which doors are involved, what lock is on them now, and roughly who has keys. Someone answers at any hour, so it does not matter whether you are calling on a weekday afternoon or late at night.
- We look at the door in person: its thickness, the bore holes, the backset, the condition of the strike plate, and whether the frame and hinges are solid. A strong cylinder in a split frame is wasted money, and we will tell you that.
- We recommend the lighter-cost option that actually solves your problem. Sometimes that is only a cylinder swap in a deadbolt that is in good shape. Sometimes the old deadbolt is worn out and a full replacement is the honest answer. You hear the reasoning and the quote before any work starts.
- We install the hardware, align the bolt and strike so it throws freely without forcing, and test it with the door open and closed. A high security bolt that has to be shouldered shut is a bolt people stop locking.
- We cut your keys, explain how the restricted keyway works, and go over who can authorize extra copies so nobody is surprised later.
- We check the screws and strike plate, and where it makes sense we suggest longer strike screws into the framing, since that is what a kick-in actually tests.
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Call (213) 577-1366What do pick-resistant and bump-resistant locks protect against, and what don't they?
We prefer to be straight about this. A high security cylinder raises the effort, skill, time and noise needed to open a door without the key. That is real protection against quiet, covert entry, which is the kind of attempt that picking and bumping represent. Pick-resistant and bump-resistant locks are meant for exactly that.
They are not magic. No lock is impossible to defeat, and a determined person with a pry bar or a boot can beat a door that has a weak frame, a short strike screw, or a hollow-core panel. That is why we look at the entire door during an installation, and why we sometimes recommend reinforcing the strike area alongside the new cylinder. The cylinder is one part of a door that has to work as a system.
Look for cylinders tested to recognized standards, such as ANSI/BHMA grading for strength and UL 437 for resistance to picking, drilling and other attacks. Those ratings are a more reliable guide than words like heavy-duty or military-grade on a box. We can show you what is stamped on the hardware we install.
What affects the cost of high security lock replacement?
We don't quote prices on a web page, because the real number depends on your doors. Here is what moves it up or down, so you can judge any quote you receive, ours included.
- Cylinder only versus a full deadbolt: swapping a cylinder into a sound deadbolt is usually the more economical route; replacing the entire lock costs more.
- Security level: certified cylinders with patent-protected keyways cost more than basic pick-resistant ones, and they come with tighter control over key copies.
- Number of doors: a front door, a garage side door and a back door all keyed alike take different work than a single lock.
- Door and frame condition: if the bore is damaged or the strike is loose, repairs add to the job.
- Extra keys: each additional restricted key is cut with authorization, and the count affects the total.
- Finish and style: matching existing hardware on a house with mid-century trim can narrow the choices.
- After-hours or distant calls: a late-night visit takes more of someone's evening than a scheduled one, and distance from our base matters.
How do restricted keys work in everyday life?
The point of a restricted key is control, and control has a small convenience cost. You cannot walk into a big-box store and have a copy cut on the spot. For most households that is exactly the goal, but it means you should plan ahead. Decide who needs a key before we finish the installation, and have those copies made while we are there. Our key duplication service handles authorized copies afterward, and we explain who is allowed to request them.
Treat the restricted key like a small piece of identification. If a key is lost, you do not have to panic, but you should not wait either. Depending on the system, we can replace the key or re-pin the cylinder to a new key, which makes the lost one useless. Tell any house sitter, relative or contractor that the key cannot be copied casually, and ask for it back when the job is done.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What does a high security upgrade look like in Ladera Heights?
Ladera Heights is mostly single-family, with ranch, traditional and contemporary homes on well-kept lots, so most of our high security work here is about the doors people really use. In Upper Ladera Heights and Lower Ladera Heights, that means the front door, the kitchen or patio door, and the garage side door. A garage side door is often the one still wearing its original-era hardware, and it is frequently the quietest way into the house. It deserves the same cylinder as the front door. Around the Ladera Center area and across the 90056 ZIP code, we also see gates on single-family lots. If a gate latch is already failing, our gate lock repair page covers that; if it is working but easy to defeat, a high security cylinder is the upgrade.
Many homes here still carry mid-century locksets, which is where a rekey is often the first thought. If the hardware is sound and your main concern is old keys, lock rekeying can be the lighter-cost fix. If the lock is worn, or you want real resistance to picking and bumping, a high security cylinder is the better answer. We will help you tell which situation you are in.
Homes in view locations above Kenneth Hahn State Recreation Area often add a keypad or app-controlled deadbolt. A smart lock changes how you open the door, but a mechanical cylinder still sits behind it, and it still has to resist picking. We can pair a smart deadbolt with a strong cylinder for the override key; see our smart lock installation page for the electronic side. Near the Fox Hills border, condominium and townhome doors raise another question: some associations set rules about exterior hardware, so check with yours before changing a front door lock.
The climate here is mild. Breezes and marine-layer mornings off the elevated ground near the Baldwin Hills have only a modest effect on door hardware, so we choose a high security lock for its security and key control rather than to fight the weather. We are about 10 miles from Ladera Heights, with a Westwood storefront and mobile vans that go out to you.
Do small businesses need high security locks too?
Yes, with the same principle and different details. A shop or office near the La Cienega Boulevard and Slauson Avenue commercial corridor has more people holding keys, so key control matters even more. Restricted keys, keyed-alike sets and clear records of who holds what make a bigger difference there than in a house. Commercial doors also bring door closers, panic hardware and fire-code requirements that residential doors don't have. We handle the cylinder side here, and our commercial locksmith page covers the rest. If you are comparing commercial security locks with home security locks, the cylinder technology is similar, but the door hardware around it is not.
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 high security locks?
We have been in business since 1987, working out of a storefront at 10740 Wilshire Blvd in Westwood, with mobile service vans for calls like yours. When you call (213) 577-1366, you reach us, not a dispatch broker who sells the job to whoever is closest. That matters for high security work, because the person who gives you advice should be the person who does the installation. David, the owner and lead technician, oversees our work.
One more thing worth knowing: California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for that license number before letting them work on your doors. A locksmith who hesitates to answer is telling you something. If you are already locked out while you are thinking about all this, our house lockout service comes first, and the upgrade can follow when you are back inside. You can also see everything we do for the area on our Ladera Heights locksmith page.
Frequently asked questions
What is the difference between pick-resistant and bump-resistant locks?
Pick-resistant locks use security pins and tight tolerances so that a pick tool has trouble setting the pins one by one. Bump-resistant locks use pin designs or extra elements that stop the impact trick from throwing all the pins at once. Good high security cylinders are built to resist both, along with drilling.
Can you upgrade my existing deadbolt, or do I need a whole new lock?
If the deadbolt body is sound and the door is in good shape, we can often swap in a high security cylinder, which is usually the more economical route. If the bolt is worn, the hardware is damaged, or you want a stronger bolt, a full replacement makes more sense. We check the door and tell you which applies.
Will high security locks work with the original mid-century doors in my Ladera Heights home?
Usually yes. We measure the door thickness, bore and backset, and most older doors can take a modern cylinder or deadbolt. Occasionally an old mortise or unusual lockset needs a different approach, and we say so after we see the door, rather than guess over the phone.
Can I get extra copies of a restricted key?
Yes, but only through an authorized process. Restricted keys are not cut at ordinary kiosks, and that is the whole point. We can make authorized copies for you, and we recommend having the copies you need cut at installation so you are not scrambling later.
What happens if I lose a restricted key?
Call us. Depending on the system, we can replace the key or re-pin the cylinder to a new key so the lost one no longer works. Re-pinning is generally the safer response if you cannot say where the key went.
Can a high security cylinder be used with a smart lock?
In many cases, yes. A smart deadbolt usually still has a mechanical key override, and that cylinder can be a high security one. We confirm compatibility with the specific lock you have or plan to buy, since models vary.
Is a high security lock overkill for a house?
That depends on how you feel about your current locks and who has keys. If your hardware is original, worn, or you do not know who holds copies, an upgrade is reasonable. If your locks are in good shape and your keys are accounted for, a rekey may be enough. We will tell you plainly which fits.
How can I tell a locksmith is legitimate?
California requires locksmith companies to hold a BSIS LCO license. Ask for the number and check it with the state before any work begins. Also ask for a clear quote before the job, and be wary of anyone who will not explain what is affecting the cost.
Can you install high security locks at night or on weekends?
Our phone line, (213) 577-1366, is answered 24 hours a day, seven days a week, all year. If you need a lock secured urgently, call any time. Planned upgrades can be scheduled for a time that suits you.
More locksmith help in Ladera Heights
High Security Locks near Ladera Heights
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.