What actually makes a lock high security?
Plenty of boxes at the hardware store say 'heavy duty' or 'high security' on the front. The phrase has no single legal definition, so it helps to know what a tradesperson means by it. A high security lock is built to make the common ways of beating a lock harder: picking, bumping, drilling, and unauthorized key copying. It is also built so that the key itself is controlled, meaning you cannot walk into a kiosk and have a copy cut.
The difference lives inside the cylinder. A standard cylinder uses a row of simple pin stacks and a key blank sold everywhere. A high security cylinder adds some mix of tighter manufacturing tolerances, security pins that fight a pick, additional locking elements such as a side bar, hardened inserts that resist drilling, and a keyway that is restricted, so blanks are only available through an authorized channel.
I'll be straight about the limits. No lock is unbeatable, and anyone who says so is selling something. What a good high security cylinder does is raise the skill, time, and noise needed to defeat it, and it takes the easy, quiet methods off the table. That is a real gain, and it is the honest way to describe it. It only works if the door, frame, and strike around the cylinder are up to the job, which is why we look at the whole opening and not only the lock.
- Pick-resistant: internal features that make manipulating the pins with picks far more difficult.
- Bump-resistant: designs that do not respond to a bump key the way an ordinary pin cylinder does.
- Drill-resistant: hardened parts placed where a drill would normally attack.
- Restricted keys: blanks and key cutting are controlled, so copies require authorization.
Why do West Covina homes and businesses ask for high security locks?
The calls we get tend to follow a few patterns. Someone has lost a key and does not know who has it. A tenant, roommate, or contractor has moved on and still has a copy in a drawer somewhere. A homeowner has seen that the lock on the front door is the same one that came with the house decades ago. Or a business owner wants the keys to the back office to stop being something anyone can duplicate on a lunch break.
West Covina has a lot of the housing that raises exactly these questions. Tract ranch homes from the 1950s through the 1970s dominate the city, and on a house that age the hardware on the doors may be original or a replacement of unknown history. We check what is actually on the door when we see it. Condos and apartment complexes cluster near the malls and the I-10 corridor, where keys change hands often. For those households, a restricted keyway is less about fear and more about knowing who can and cannot make a copy.
If your concern is the key situation more than the lock itself, you should know that a plain lock rekey is sometimes the lighter-cost fix. We will tell you when that is enough and when it is not.
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Call (213) 577-1366How we handle a high security lock installation, step by step
Here is how a typical job goes, whether it is a front door in a ranch home or a back-office door on a commercial strip. We keep the process the same so nothing gets skipped, even though every opening is a little different.
- You call (213) 577-1366 any hour of the day. We ask what door it is, what is on it now, and what prompted the call, whether that is a lost key, a break-in attempt, a move, or an upgrade you have been planning.
- We look at the opening in person: the cylinder, the deadbolt or lockset, the strike plate, the screws, the door edge, and the frame. A strong cylinder in a split frame or a weak strike is a waste of money, and we say so.
- We talk through the options in plain terms: which cylinder type fits your hardware, how restricted keys are issued, how many keys you need, and whether you want everything keyed alike. If a business needs several doors on one system, we will point to a master key system instead of a pile of unrelated keys.
- We install the new cylinder or hardware, reinforce the strike and screws where the door allows it, and check that the bolt throws smoothly and fully.
- We cycle every key, test the lock from both sides, and confirm the door closes and latches without forcing it.
- We explain how key control works for your lock, including how to order additional keys later and what authorization is needed, so there are no surprises the day you need a spare.
Pick-resistant versus bump-resistant locks: what each one does
People often use these terms as if they mean the same thing. They do not, and the right choice depends on what you are worried about.
Pick resistance is about patient, skilled manipulation. Security pins, tighter tolerances, and extra locking elements make that harder and slower. Bump resistance is about a faster, cruder attack, where a specially cut key is struck to jar the pins into position. Many ordinary pin cylinders are vulnerable to this, and a cylinder designed to resist bumping changes how the internal parts respond.
Most quality high security cylinders address both, along with drilling and key control. When you are shopping for pick-resistant locks or bump-resistant locks, ask what the design does about each threat, and be wary of any product that only talks about one. On residential doors, we usually pair a good cylinder with a solid deadbolt. If you want keyless convenience on top of that, we can talk through smart lock installation and what it does and does not change about physical security.
- Ask whether the keyway is restricted and how copies are authorized.
- Ask what the cylinder does about picking, bumping, and drilling separately.
- Ask whether your door and strike will support the lock you are buying.
- Ask how a lost key is replaced, and what proof of ownership is required.
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 replacement?
We do not quote numbers on a web page because the honest answer depends on your door. What we can do is tell you exactly what moves the cost up or down, so you can see where the money goes.
The cylinder itself is the first factor. Different designs carry different levels of protection, and the cost reflects the engineering and the controlled key system behind it. The second is how many cylinders you need. A single front door is one job, and a house with a front door, a back door, a garage entry, and a side gate is another. The third is the hardware around the cylinder. If your existing deadbolt is worn or poorly fitted, replacing only the cylinder may not make sense, and a full high security lock replacement may be the more economical route over time.
Door and frame condition matter too. A strike plate that needs reinforcing, a door that has been drilled before, or a frame with damaged wood adds work. Keys are another line item, since restricted blanks cost more than common ones and you may want extra copies. Finally, timing plays a part. Emergency calls outside normal hours are handled differently from a planned upgrade we schedule with you.
If the main goal is simply to stop an old key from working, we will tell you that changing the locks or rekeying can be the lighter-cost option. If the goal is long-term key control, a high security cylinder is worth the difference. We would rather you spend on the right thing once.
How does this look in West Covina's neighborhoods?
West Covina is not one kind of place, and the right setup changes from street to street. Here is how we think about a few of its areas when someone asks about high security locks.
In Woodside Village, the 1960s-70s planned community of HOA-managed townhomes and condos in the southeast, the key question is usually shared ownership of the problem. When a unit changes hands, or a tenant moves out, a restricted key means the former occupant cannot simply have a copy cut. Check your HOA's rules before changing exterior hardware, since finish and style requirements vary. We can work within those rules and tell you what will and will not fit your door.
In the South Hills area, with its hillside homes around the South Hills Country Club, the climate matters as much as the cylinder. This is one of the warmer parts of the San Gabriel Valley, with dry summer heat and occasional gusty conditions along the ridgelines. Sun-exposed doors and gates weather faster than in coastal areas, so finishes fade and moving parts wear. A high security cylinder is only as good as the hardware it sits in, and we pay attention to how the sun-baked door still closes and latches.
Around the Galster Park area and the homes near Galster Wilderness Park, side-entry doors and gates are the usual weak points. Hillside lots often have a side door or gate that nobody thinks about until it matters. We can fit a high security cylinder on a side-entry lock, and for the gate itself we can talk through gate lock repair so the whole perimeter is consistent.
Across ZIP codes 91790, 91791, and 91792, we see everything from 1950s ranch homes to condo complexes near the I-10 corridor. If you are in the Cortez Park area, the Cameron Park area, or the Eastland area, the process is the same: we look at what is on the door, tell you what is worth upgrading, and install it. Our storefront is at 10740 Wilshire Blvd in Westwood, about 30 miles away, and our mobile vans do the driving so you do not have to bring anything to us.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366Commercial security locks around the malls and the I-10 corridor
Businesses ask for commercial security locks for a different reason than homeowners. They care about key control across staff turnover, about doors that get used hundreds of times a day, and about having a record of who has access to what.
In West Covina, retail and office space is clustered around Plaza West Covina, the Eastland Center shopping complex, and the I-10 frontage commercial corridor. On a storefront or a back-of-house door, a restricted high security cylinder means an employee who leaves cannot easily make a copy of the key. If you also have a door closer or a panic device on the same opening, those need to work with whatever lock you choose, and we look at commercial door hardware as a whole rather than one piece at a time.
For an office on the I-10 frontage, the usual request is to rekey or replace cylinders after a lease change, a departure, or a lost key, and to move to a restricted system so it does not happen again. We will scope that with you and keep the door code requirements and egress in mind, since a lock that traps people inside is a safety problem and not a security feature.
Why call Wilshire Lock & Key for high security locks?
We have been in business since 1987, and that history matters in this work. High security installation is about judgment: matching the cylinder to the door, the door to the frame, and the whole thing to how you actually live or run your business. That judgment comes from years of seeing what fails and why.
We are one company with a storefront in Westwood and our own mobile vans. There is no dispatch middleman who takes your call, passes you to a stranger, and disappears when something goes wrong. You are talking to the same outfit that does the work. David, the owner and lead technician, oversees the work, so the standard stays consistent.
We serve 140 cities across Los Angeles and Ventura counties, and we answer the phone around the clock at (213) 577-1366. If you are locked out while this is all happening, we can help with a house lockout too, but for this page the point is simple: you get one company, a clear explanation, and work done properly.
What should you ask any high security locksmith?
Whoever you hire, ask the same questions. It protects you, and a good locksmith will not mind.
California requires locksmith companies to hold a BSIS LCO license, issued through the Bureau of Security and Investigative Services. Ask any locksmith for the company's license number and verify it with the state before work begins. Be cautious about anyone who cannot or will not give it to you.
Ask how the restricted key system works and who can authorize copies. Ask what happens if you lose all your keys. Ask whether the price you are given covers the cylinder, the labor, and the keys, or only part of it. And ask whether they looked at the door and frame, or just sold you a lock over the phone. A locksmith who explains these things clearly is usually one worth trusting.
Frequently asked questions
What is the difference between a regular lock and a high security lock?
A regular lock uses a basic pin cylinder and a common key blank that anyone can copy. A high security lock adds features that resist picking, bumping, and drilling, and uses a restricted keyway so copies are controlled. It raises the effort and skill needed to defeat it, though no lock is completely unbeatable.
Can high security locks be picked or bumped?
Any mechanical lock can eventually be defeated by someone with enough skill, time, and tools. A well-made pick-resistant, bump-resistant cylinder makes the quiet, quick methods much harder and pushes an attacker toward noisy, slower ones. That is the realistic benefit, and it is worth having.
Will my existing door work with a high security cylinder?
Often yes, but we check first. The cylinder has to fit your lockset or deadbolt, and the door, frame, and strike plate have to be sound. On older West Covina ranch homes we sometimes reinforce the strike or replace worn hardware so the new cylinder is not undermined by what surrounds it.
Can I get extra keys copied for a high security lock?
Not at a hardware store kiosk. Restricted keyways are controlled, so copies go through an authorized channel, usually with proof that you are the owner or an authorized user. That is the point of the system, and it also means planning ahead for spares rather than waiting until you are locked out.
Is rekeying enough, or do I need to replace the lock?
If your lock is in good shape and you only need old keys to stop working, rekeying is usually the more economical route. If you want pick and bump resistance and controlled keys going forward, replacement with a high security cylinder is the better fit. We will tell you which applies after seeing the door.
How much does high security lock installation cost?
It depends on the cylinder type, how many doors you are doing, the condition of your door and frame, how many restricted keys you want, and whether it is a planned job or an urgent call. We explain these factors and confirm the details with you before work starts.
Do you install high security locks for businesses in West Covina?
Yes. We handle commercial security locks for storefronts, offices, and back-of-house doors, including places around the malls and the I-10 corridor. For several doors on one key system, we often recommend a master key setup so staff keys stay organized and controlled.
Can you work with HOA rules in a Woodside Village townhome?
We can work within them. HOAs often set rules about exterior hardware style and finish, so check yours before we begin. We will tell you which options fit your door and how to choose a cylinder and finish that stay within your community's requirements.
Do you come out at night or on weekends?
Yes. We answer the phone 24 hours a day, 7 days a week, year-round, at (213) 577-1366. Our mobile vans serve West Covina and 140 cities across Los Angeles and Ventura counties, and David oversees the work from our Westwood storefront.
More locksmith help in West Covina
High Security Locks near West Covina
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.