What are high security locks, and does your Sun Valley property need them?
A standard pin-tumbler cylinder from a big-box store holds up against a casual try at the door. It does much less against someone with a pick set, a bump key, or a copy of your key that was cut years ago for a contractor you barely remember. High security locks are built to close those specific gaps. They use tighter machining, hardened steel in the spots where drills and picks attack, extra mechanisms inside the cylinder, and keys that are restricted so copies stay under control.
In Sun Valley the question usually comes up in a handful of ways: a cottage where the original hardware has been rekeyed over the years and nobody is sure who still holds a key, a rental with tenant turnover, a yard gate or shop door along the San Fernando Road corridor, or a homeowner who wants the front door to be the hardest part of the house to get through. If one of those sounds familiar, a high security cylinder is a reasonable upgrade. If your existing locks are sound and your only worry is old keys floating around, plain lock rekeying may be all you need, and we will tell you so.
- Keys have been copied freely by past tenants, contractors, relatives, or previous owners.
- There was a break-in or an attempt on your property or a neighboring one, even a failed attempt.
- The lock shows fresh scratches, gouges, or damage around the keyway.
- You run a yard, shop, or storage area with equipment, inventory, or vehicles worth protecting.
- You want real key control, meaning nobody can order more keys without your permission.
How do pick-resistant and bump-resistant locks actually work?
Most conventional locks use a row of spring-loaded pins that a key lifts to the right height. Picking and bumping both exploit the fact that those pins are cheap to manipulate when the parts are machined loosely. A high security cylinder changes the mechanics, not just the label on the box.
Pick-resistant locks typically combine several features. Security pins with spool or serrated shapes give false feedback to a pick. Tight tolerances leave less room to wiggle the parts. Many designs add a second locking element, such as a side bar or sliders, that must line up in addition to the pins. Picking one set of components is hard enough. Picking two at once, without a key that is cut for both, is much harder.
Bump-resistant locks are aimed at the bump key, a filed key that transfers a sharp knock to every pin at once. Cylinders built to resist bumping use modified pin stacks, extra internal elements, or a design where the pins are not the only thing holding the plug in place, so the knock does not do what the attacker expects.
Then there is the key itself. Restricted keyways use blanks that are controlled by the manufacturer, and copies generally require proof of authorization. That is the part owners value most in a rental or business, and it comes with a trade-off: getting an extra key is a deliberate process, not a two-minute stop at a kiosk. If you want to understand how that process works for ordinary keys versus restricted ones, our key duplication service page explains the difference.
One honest caveat: no lock is pick-proof. Pick-resistant means it takes far more skill, tools, and time than a standard lock, and that is usually enough to make an attacker move on. When you compare products, ask what standard a cylinder is rated to, such as ANSI/BHMA grading for door hardware or UL listings for pick and drill resistance, rather than relying on marketing language.
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Call (213) 577-1366How do we install or replace a high security lock, step by step?
Whether it is a new installation or a replacement of a worn-out lock, the process is the same. Most of this work happens at your property, since our mobile vans carry the tools and a range of cylinders and deadbolts, and the job is easier to do right when we can see the actual door.
- We talk through the door: what it protects, who has keys now, and whether it is a home, a rental, or a business entrance.
- We inspect the hardware and the door itself, including the current lock, the strike plate, the frame, the door thickness, and whether the existing bore can take a high security cylinder or the whole deadbolt should change.
- We recommend the lighter-cost route that actually solves your problem. Sometimes that is a cylinder swap, sometimes a full deadbolt installation with a reinforced strike.
- We remove the old hardware and fit the new cylinder or deadbolt, adjusting the strike and fasteners so the bolt lands cleanly and the lock is not carrying load the frame should be carrying.
- We cut and set up your keys, explain how the restricted keyway works, and tell you who can authorize additional copies.
- We test the lock repeatedly from both sides, with the door open and closed, including how it behaves in the way you will use it every day.
- We walk you through what we did and point out anything still weak, such as a worn frame or a window near the lock, so you know exactly where you stand.
What affects the cost of high security lock installation?
High security hardware costs more than a standard lock. That is the nature of tighter machining, better materials, and controlled keys. Beyond that, the price of a job depends on a short list of factors, and we would rather explain them than hand you a vague range over the phone. We give you the figure once we know your door.
The factors that move the cost are:
- Cylinder only versus a full deadbolt or multi-point lock. A cylinder swap in a sound deadbolt is usually the more economical route.
- The rating and key-control level you choose. A restricted keyway with authorization cards sits at a different level than a basic security cylinder.
- How many locks are involved and whether they should all be keyed alike.
- How many keys you need, and who is authorized to order more.
- The condition of the door and frame, including whether the strike, hinges, or jamb need reinforcing before the new lock can do its job.
- Residential versus commercial hardware, since gates, roll-up doors, and padlocks are different products than a front-door deadbolt.
- Timing and distance. Sun Valley is about 17 miles from our Westwood storefront, and after-hours calls differ from scheduled daytime visits.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What do high security locks look like on a Sun Valley street?
Sun Valley is a patchwork, and the right lock depends on which part of it you are standing in. A few patterns come up often across 91352.
The Stonehurst tract is known for its 1920s river-rock cottages, and many of them still carry vintage hardware. Owners there often want to keep the look of the door while upgrading what is behind it. In many cases we can leave the decorative piece in place and let a modern high security deadbolt carry the real security work. The hot, dry summers matter too: wooden doors and frames swell, and a tight-tolerance lock on a binding door is a lock people stop using properly. We check the fit in the heat of the day, not just on a cool morning.
Across the postwar bungalows and ranch houses from the 1940s to 1960s that fill much of the neighborhood, the local issue is dust. Seasonal Santa Ana winds carry grit that works into exterior cylinders, so we explain how to look after a high security lock, including avoiding oily sprays that hold dust and using the right dry lubricant instead.
Along Glenoaks Boulevard and the other major corridors, there are apartment pockets where key control is the real problem, because turnover leaves copies in many hands. Restricted keys fit that situation well. If you manage units, our page for landlords and property managers covers the wider workflow.
Then there is the San Fernando Road industrial corridor, where recyclers and auto businesses rely on roll-up doors, yard gates, and commercial padlocks. A cut-rate padlock on a yard gate is often the weakest link on the whole property. High security padlocks with shrouded shackles and restricted keys, along with upgraded gate hardware, change that picture. We cover the wider range of work under commercial locksmith services.
Near Shadow Hills, the horse-zoned lots bring long driveways, gates, and outbuildings that sit far from the house. Those spots tend to get less attention than the front door, which is exactly why they deserve a lock that resists tampering. We come to you with the van, so you do not have to carry a gate or door hardware anywhere.
Home security locks versus commercial security locks: what changes?
The mechanics inside the cylinder are similar, but the setup around them is not.
For home security locks, the priorities are the front and back entry doors, garage entry, and any side door that is out of view. You want a lock that you and your family can operate without thinking about it, with enough key control that you know who has copies. Most homes need only a handful of cylinders upgraded, and you can keep them keyed alike so you carry one key.
For commercial security locks, the questions multiply. Who needs access to which door? What happens when an employee leaves? Is the building a storefront with a glass door, a warehouse with a roll-up, or a yard with a gate and padlocks? Commercial hardware also has to handle heavier use, so we match the grade of the lock to the traffic, not just to the threat. Restricted keys matter more here, since you may have staff, vendors, and former employees in the picture.
If your property needs layered access, such as different keys for different areas of the same building, that moves into master key system territory. Master keying adds convenience but also adds key combinations, so it should be designed on purpose rather than bolted on later.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366What can a high security lock not do?
A good cylinder in a weak door is expensive false confidence. Many break-ins skip the lock entirely and go after the frame, the strike plate, or a window next to the door. If the jamb is split, the strike is held by short screws, or the door is hollow and worn, the lock cannot save it. That is why we inspect the door before recommending anything, and why reinforcing the strike and frame is often part of the job.
Electronic options are a separate conversation. Some smart lock installation setups include a pick-resistant cylinder as a backup, and others do not, so it is worth asking before you buy. We can talk through the trade-offs between convenience and key control.
We will also be straight about expectations. A high security lock slows an attacker down and removes the easy options. It does not make a property invulnerable, and anyone who tells you otherwise is selling something. Good lighting, sound doors, and sensible habits do as much as hardware.
Why call Wilshire Lock & Key for a high security locksmith?
We have been in business since 1987, and we serve 140 cities across Los Angeles and Ventura counties. That includes Sun Valley, where our mobile locksmith vans come out from the Westwood base, and the storefront at 10740 Wilshire Blvd is there if you want to see hardware in person or talk to someone face to face.
You deal with one company. There is no dispatch middleman passing your call to whoever is available, so the person who explains the work is part of the same outfit that does it. David, the owner and lead technician, oversees how we approach these jobs, and that matters on high security work, where small mistakes in fitting or key setup can undo the point of the upgrade.
Our phone is answered 24 hours a day, 7 days a week, year-round at (213) 577-1366. If a break-in leaves your door compromised at night, we can secure it first. The higher-grade upgrade can be planned calmly afterward, once you have had time to decide what the property actually needs.
How do you choose a legitimate high security locksmith?
Security work depends on trust, since a locksmith who installs your lock knows how it works and who the keys belong to. California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, known as a BSIS LCO license. Ask any locksmith you are considering for their license number and check it with the state before you let them near your door.
Also ask what rating a cylinder carries, how key copies are controlled, who authorizes them, and what happens if you lose a key. A locksmith who can answer those clearly, without dodging, is one who understands the product. A quote that arrives without anyone looking at your door should make you cautious. You can reach us any time at (213) 577-1366, or use our contact page if you would rather write first.
Frequently asked questions
Are high security locks pick-proof?
No. Pick-resistant locks are far harder to pick than standard locks, thanks to security pins, tight tolerances, and secondary locking elements, but no lock is pick-proof. The goal is to demand more skill, tools, and time than most attackers will spend. We explain what a given cylinder resists and what it does not.
Can my existing Sun Valley lock be upgraded, or does it need full replacement?
It depends on the lock and the door. Sometimes only the cylinder can be swapped for a high security one while the deadbolt body stays. In other cases, especially with worn or low-grade hardware, a full replacement is the better call. We inspect the door first and recommend the more economical route that actually fixes the problem.
Will a high security deadbolt fit the old door in my Stonehurst cottage?
Often yes, but we check first. Older doors can be thinner, uneven, or swollen in hot weather, and vintage hardware sometimes sits in bores that need careful handling. We can often keep a decorative piece on the outside while a modern high security deadbolt does the real work.
Can I still get extra keys cut for a restricted keyway?
Yes, but not casually. Restricted keys are controlled, so copies usually require authorization, such as proof of ownership or an authorization card. That is the point of the system, since it stops unapproved copies. Plan ahead and order spares during installation so you are not caught short later.
Does Santa Ana dust affect high security locks?
Any exterior cylinder can pick up grit during dry, windy seasons. Tight-tolerance locks need a little care. We recommend avoiding oily sprays that attract dust and using a proper dry lubricant. If a lock starts to feel gritty or stiff, have it looked at before it fails.
Do you handle high security padlocks and gate locks for businesses on San Fernando Road?
Yes. Yard gates, roll-up doors, and commercial padlocks are common on the industrial corridor, and we can upgrade them with higher-grade hardware and restricted keys. We look at the gate or door itself too, since a strong padlock on a weak hasp does not accomplish much.
Can you install a high security lock at night or on a weekend?
Our phone is answered 24/7 at (213) 577-1366. If your door has been compromised, we can secure it right away. A full high security upgrade often benefits from a daytime visit, when we can inspect the door and frame carefully, but we will talk through your situation and tell you what makes sense.
How much does high security lock replacement cost?
It costs more than a standard lock, and the final figure depends on the type of hardware, the rating and key control you choose, how many locks are involved, how many keys you need, the condition of the door and frame, and the timing of the visit. We give you a clear figure once we have seen the door.
How do I know a locksmith is legitimate?
California requires locksmith companies to hold a BSIS LCO license. Ask for the license number and verify it with the state. Also be wary of any quote that comes without anyone seeing your door, and ask who controls key copies.
More locksmith help in Sun Valley
High Security Locks near Sun Valley
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.
