What makes a lock high security in the first place?
The phrase gets attached to plenty of products that haven't earned it, so here is how we use it. A high security lock is built to resist the quiet ways locks get defeated: picking, bumping, drilling, and unauthorized key copying. A standard builder-grade cylinder has loose tolerances, a simple pin arrangement, and a common keyway that nearly any hardware store can cut a key for. A high security cylinder tightens every one of those weak points.
Pick-resistant cylinders use security pins, extra shear lines, sidebars, or other internal elements that make manipulation with picks slower and far less reliable. Bump-resistant designs change how the internal parts react, so a bump key can't throw them the way it would on a basic cylinder. Drill resistance usually comes from hardened inserts that protect the plug and the shear line.
The third piece is key control, and it's the one people overlook. Many high security systems use a restricted keyway, which means blanks aren't sold openly and duplicates require authorization from whoever owns the system. That matters if you've ever handed a key to a contractor, a tenant, or a house sitter and wondered where copies might end up.
One honest limit: no lock is unbeatable. A determined person with enough time, tools, and privacy can defeat nearly anything. What good high security hardware does is raise the time, noise, and skill required, and that is what actually discourages most intruders. We won't tell you anything different.
- Pick resistance: internal design that makes manipulation difficult and slow
- Bump resistance: pin or disc behavior that a bump key can't easily exploit
- Drill and tamper resistance: hardened protection around the parts that matter
- Key control: restricted keyways and authorized duplication only
What does a standard lock leave open at a Rowland Heights home or shop?
Rowland Heights has a lot of tract homes built from the 1960s through the 1980s. Many of them still carry the original builder hardware or a patchwork of replacements added over decades, with keys that have been copied more times than anyone can count. A cylinder like that was designed to be affordable to install, not to resist anyone who knew what they were doing.
Townhomes and condo complexes, which cluster along Colima Road and Fullerton Road, have a different problem. Keys pass through previous owners, tenants, relatives, and service people. Even when nobody means any harm, you lose track of how many working copies exist. A restricted key system gives you a clear answer to that question.
Then there's the door itself. A pick-resistant cylinder in a door with a weak frame, short strike-plate screws, or a worn latch is a good lock in a poor setup. That is why we look at the whole assembly before recommending anything. Sometimes the right first move is a properly installed deadbolt with a reinforced strike, with the high security cylinder going into it.
Storefronts and offices have their own exposure. A shop in a plaza sees employees come and go, and a keyway that any key shop can cut makes it hard to say who has access. Commercial security locks with controlled keys solve that in a way a stock cylinder can't.
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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?
High security installation is not a rush job, even when you call us at an odd hour. The work is simple to describe, but the details of fit and key control decide whether the lock does what you're paying it to do. Here's how a typical job goes.
If you'd like to describe your doors in writing before we talk, you can also use our contact page and we'll follow up.
- You call (213) 577-1366, any hour, and tell us what doors you have, how many locks are involved, and what's prompting the change: a break-in, lost keys, a move, or just wanting better hardware.
- We look at each door, frame, strike plate, and existing lockset in person at your property so the recommendation is based on what's actually there.
- Together we choose the system: cylinder type, keyway and key-control level, and whether several doors should share one key or stay separate.
- Before any work begins, we explain what we plan to install, what the job involves, and what factors will shape the final cost.
- We remove the old hardware, fit the new cylinders or full lock sets, and reinforce the strike, frame, or latch area where it's needed.
- We test every lock with every key, from inside and outside, with the door closed and latched, and check that the bolt extends fully and retracts cleanly.
- We hand over the keys and explain how duplication works for your system, including what authorization is needed to order more.
Which high security options are there for homes and businesses?
Not every property needs the same level of protection, and a good locksmith shouldn't push the most elaborate system by default. In practice, high security work falls into a few categories.
The lighter-touch route is upgrading the cylinders in lock bodies that are otherwise sound. This is often the more economical way to gain pick and bump resistance and tighter key control, provided the existing hardware is in good condition. The next step up is a complete high security deadbolt or lockset, which makes sense when the existing hardware is worn, poorly made, or mismatched to the door. For businesses, there are heavier commercial-grade options built for high traffic and daily abuse.
Some products are tested against recognized standards, such as UL 437 for resistance to picking, drilling, and forced tampering, and BHMA/ANSI grading for door hardware durability. We'll tell you what a particular product carries. A marketing phrase on a box is not a rating.
Key control comes in levels too. Some systems restrict the keyway but are fairly easy to get duplicates for; others tie duplication to a signature card or authorization on file. If you have several doors, a master key system can let one key open what it should while individual keys open only their own locks, which suits multi-door businesses and small properties with several tenants.
- Cylinder upgrade in an existing lock body
- Full high security deadbolt or lockset replacement
- Commercial security locks for storefronts, offices, and back doors
- Restricted-key systems with controlled duplication
- Master-keyed or keyed-alike setups across several doors
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?
We don't quote numbers on a web page because the honest answer depends on your doors, and a flat figure would be misleading. What we can do is explain exactly what moves the cost up or down, so nothing surprises you when we discuss the job.
Replacing only the cylinders is usually the more economical route when the surrounding hardware is sound. Replacing whole lock sets costs more but makes sense when the existing hardware is tired. The cost also climbs with the number of doors, since each one needs its own hardware and testing.
- How many locks and doors are included in the job
- Cylinder-only upgrade versus complete lockset replacement
- The level of key control you choose, from restricted keyways to authorization-card systems
- How many keys you need cut at the start
- Door and frame condition, including any reinforcement of strikes, latches, or wood around the lock
- Exterior-rated finishes for doors and gates that sit in direct sun
- Whether you need residential-grade or commercial-grade hardware
- After-hours or emergency scheduling, and travel to your location
Why call Wilshire Lock & Key for high security work?
We've been in business since 1987, and that history shows in how we approach a job like this. High security hardware rewards experience. Choosing the right cylinder, fitting it cleanly in an older door, and setting up key control so it still makes sense years later takes practice, not just product knowledge.
We operate from a storefront at 10740 Wilshire Blvd in Westwood, with mobile service vans that come to you. When you call (213) 577-1366, you reach our company, not a dispatch middleman who sends whichever contractor is free. David, our owner and lead technician, oversees the work, so the person responsible for your lock is not a stranger to the business. Our line is answered 24 hours a day, 7 days a week, year-round.
Whoever you hire for this, ask about licensing. California requires locksmith companies to hold a Bureau of Security and Investigative Services (BSIS) Locksmith Company license, known as an LCO license. Ask any locksmith you're considering for their license number before they touch your locks, and verify it. That's good advice for any trade work on the doors that protect your home.
Where do high security locks matter most around Rowland Heights?
Rowland Heights covers ZIP code 91748 and is an unincorporated community in Los Angeles County, and its housing varies a lot from one pocket to the next. That variety shapes where high security hardware does the most good.
In the hillside neighborhoods south of Pathfinder Road, view-lot homes commonly use side gates and garage-entry doors as primary access points, not just the front door. Those are the doors we most often suggest upgrading, because a strong front-door lock doesn't help if the side entrance has a stock cylinder. Some of the gated hillside communities also rely on gate hardware that needs attention in its own right, and we handle that separately under gate lock repair. The hillside lots are sun-exposed and breezy, and the warm, dry summers weather south-facing doors and gate hardware over time. For high security work, that means choosing exterior-rated finishes and checking how a lock moves after seasons in direct sun.
Along the Colima Road and Fullerton Road corridors, townhome and condo complexes are where key control earns its keep. If you're a new owner and don't know how many copies of your entry key exist, changing to a restricted system answers that question. If you only need to cut off old keys and don't want to change hardware, rekeying can be the lighter option, and we'll tell you honestly which fits better.
The shopping plazas on Colima Road and Fullerton Road bring storefront and restaurant doors into the picture. Back doors and rear storage entrances in those plazas are often the quiet weak spot, and they benefit from controlled keys and hardened cylinders. Our commercial locksmith service covers the wider set of business hardware. Homes near the Nogales Street corridor and the Pathfinder Park area are mostly the tract-home stock mentioned above, where a cylinder upgrade paired with a reinforced strike is a common starting point.
Rowland Heights sits about 34 miles from our Westwood base, and we serve it as part of our work across Los Angeles and Ventura counties. If a lockout turns out to be what started your conversation about better locks, our house lockout service is there for that moment, and we can talk about upgrades once you're back inside.
Locked out or need a locksmith now?
We answer around the clock, every day of the year.
Call (213) 577-1366When is high security the wrong answer, and what should it be paired with?
Sometimes the right advice is to spend less. If your lock is in good shape and your only concern is who might still hold an old key, rekeying may solve the real problem. If a door has a hollow frame or a cracked jamb, reinforcing it comes before any cylinder upgrade.
Smart locks are a separate decision. Convenience features like codes and app access are valuable, but they are not the same thing as pick or bump resistance. If you want both, we can talk through how a smart lock installation fits with a high security setup, and what each part actually protects against.
Some households and businesses also want overlapping layers: a high security deadbolt on the main door, restricted keys across side doors, and sturdy hardware on gates. We'd rather help you build that in stages, door by door, than sell you everything at once.
Frequently asked questions
Are high security locks worth it for a regular home in Rowland Heights?
It depends on your situation. If your keys have been copied many times, you've had a break-in, or your side gates and garage-entry doors rely on basic cylinders, the upgrade usually makes sense. If your hardware is already solid and your concern is just old keys, a rekey may be enough. We'll tell you which.
Can you make my existing lock pick-resistant, or do I need a whole new lock?
Often we can replace just the cylinder and keep the lock body, if the body is in good condition and compatible. If the hardware is worn or poorly made, replacing the whole lockset is the better move. We check the door in person before recommending one or the other.
Will a bump-resistant lock really stop bumping?
Bump-resistant cylinders are designed so a bump key can't throw the internal parts the way it would on a basic cylinder. That makes this method far less practical. No lock is absolutely immune to every attack, but a well-built one raises the effort and skill needed considerably.
Can I copy a restricted key at a hardware store?
Generally not. Restricted keyways use blanks that aren't sold openly, and duplicates require authorization tied to the system's owner. That's the point of key control. It also means you should plan ahead and order the spare keys you need when the lock is installed.
What happens if I lose a high security key?
Call us at (213) 577-1366. Depending on the system, we can work with your ownership documentation to order a replacement key, or we can rekey or swap the cylinder so the lost key no longer works. Which route fits depends on the product and how it's set up.
Will a condo or townhome complex allow me to change my locks?
Rules vary by complex, and we don't know the policy of any specific community. Many require that management or emergency access remain possible. Check with your association before changing exterior locks, and tell us about any requirements so we can plan the hardware around them.
How long does installation take?
It depends on how many doors are involved and what condition they're in. Swapping a single cylinder is a small job, while outfitting a whole house or business with reinforcement takes longer. After we see the doors, we'll give you a realistic sense of the time before starting.
Do you handle high security locks for businesses too?
Yes. Commercial security locks, controlled keys for rear and storage doors, and master-keyed systems are all part of what we do for storefronts and offices. We'll match the hardware to the traffic and use the door sees, not just to the highest-rated product.
Can I call about high security locks late at night?
Yes. Our line at (213) 577-1366 is answered 24 hours a day, 7 days a week. If you need a door secured urgently, say so on the call. Larger upgrades are often best planned, but we can talk it through at any hour.
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High Security Locks near Rowland Heights
Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.
Last updated 2026-10-11.