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Wilshire Lock & Key

24/7 locksmith · Simi Valley, CA

High Security Locks in Simi Valley, CA

Wilshire Lock & Key installs and replaces high security locks in Simi Valley: pick-resistant, bump-resistant cylinders and restricted-key systems for homes and businesses. We answer 24 hours a day, 7 days a week at (213) 577-1366, and we can tell you over the phone what fits your door.

  • Since 1987
  • Westwood storefront + mobile vans
  • A person answers, day or night
High-security cylinder and dimple keys on a dark workbench

What are high security locks, and does your Simi Valley property need them?

A high security lock is a lock built to make the common ways of getting past a standard lock much harder. In practice that usually means a cylinder with tighter tolerances and extra internal defenses, plus a key that can't be copied at any corner hardware kiosk. The two features people ask about most are pick resistance and bump resistance, and a third, the restricted keyway, is the one that quietly does the most work over the years.

Pick-resistant locks use specially shaped pins, additional locking elements such as a side bar, or a different internal layout, so the small tools used to manipulate a standard pin tumbler cylinder don't work the same way. Bump-resistant locks are designed so that a filed-down bump key, which can open many ordinary cylinders with a few taps, doesn't line the internals up. We say resistant on purpose. No lock is pick-proof, and anyone who tells you otherwise is selling something. What a good cylinder does is raise the skill, time, and noise needed, and for most break-in attempts that is enough to send someone elsewhere.

Not every door in Simi Valley needs this. A side gate with nothing behind it probably doesn't. A front door on a house that has changed hands several times, a business door with cash or inventory behind it, a home office, a detached garage with tools, or a property where many people have held keys over the years is a different story. If you're not sure which group you're in, call us at (213) 577-1366 and describe the door. We'll tell you honestly whether a standard grade-1 deadbolt is enough or whether a high security cylinder is worth the step up.

Why do standard locks fall short?

Most builder-grade locks are made to meet a price point for the developer, not to resist an attack. The cylinder inside is a basic pin tumbler with loose tolerances, and the key blank is sold everywhere. That combination creates three weak spots: the lock can be picked or bumped by someone who has practiced, the key can be duplicated by anyone who briefly handles it, and the cylinder often sits in a thin latch assembly that gives way long before the cylinder does.

The third point matters more than most people expect. A high security cylinder on a door with a short strike plate screwed into soft trim is an expensive way to feel safer. The cylinder is one link in a chain that includes the deadbolt body, the bolt throw, the strike plate, the screws that hold it, and the door frame itself. When we assess a door, we look at all of it, and we'll tell you if the cylinder is not where your money is best spent.

Key control is the quiet reason many customers upgrade. With a standard keyway, you can't know how many copies exist. A previous owner, a contractor, a house cleaner who left years ago, a tenant's former roommate: all of them may still have a working key. A restricted keyway system ties key duplication to an authorization, so copies can only be cut by the dealer holding the records, and only for the person on the card. That is control you can't get from a pin tumbler alone.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How do we install or replace high security locks?

The process is straightforward, and we explain each step as we go so there are no surprises. If you're locked out or the existing lock has failed, we handle that first and then move on to the upgrade, rather than letting an emergency push you into the wrong product.

  1. Talk through the situation. You tell us what the door protects, who has keys now, and what you're worried about. We ask about the door material, the frame, and whether it's a house, a gate, or a business entrance.
  2. Inspect the door and hardware. We check the existing deadbolt, the latch, the strike plate, the screws, and how the door sits in the frame. Doors that have swollen or shifted need attention before a precision cylinder goes in.
  3. Choose the level of protection. We compare pick-resistant and bump-resistant options, restricted versus non-restricted keyways, and whether you need a new cylinder in your existing hardware or a full replacement lock.
  4. Install and align. We fit the new cylinder or lock, reinforce the strike and frame where needed, and check that the bolt throws fully and smoothly without forcing the door.
  5. Test and cut keys. We cycle the lock repeatedly, test every key, and explain how key authorization and any card or registration works for your system.
  6. Set up future key rules. We tell you plainly who can order additional keys, what proof is required, and what happens if a key or card is lost.

Which high security lock fits your door?

Different doors call for different answers. These are the common situations we help with and the direction we usually take.

Where a plain cylinder swap isn't enough, we may suggest a full deadbolt replacement; our deadbolt installation page covers that side of the work.

  • Front doors on resale homes: a high security cylinder with a restricted key, so the previous owner's copies and the contractors' copies stop mattering.
  • Detached garages, workshops, and storage rooms: a bump-resistant deadbolt, often keyed to match the house so you carry fewer keys.
  • Home offices and rooms with valuables: a pick-resistant cylinder on the inner door, giving a second layer if the first is bypassed.
  • Small businesses: restricted-key cylinders on the front and back doors, with key control that stays with the owner rather than whoever hired the last employee.
  • Larger sites with several staff levels: a structured keying plan, which is its own project and is covered under master key systems.
  • Rental properties: restricted keys let a landlord control copies between tenants, which is a major reason owners ask us about this.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How much does high security lock installation cost in Simi Valley?

We don't quote numbers on a web page, because the honest answer depends on your door, and any figure we printed would be wrong for half the people reading it. What we can do is tell you exactly what moves the cost up or down, so you can compare quotes sensibly.

The biggest factor is the type of cylinder. A pick-resistant and bump-resistant cylinder with a standard keyway sits at the lighter-cost end of high security. A cylinder with a patent-protected, restricted keyway costs more because the key blanks are controlled, the registration is managed, and extra keys are ordered through an authorized channel. Certifications and grades also matter: a cylinder built to a recognized high security standard generally costs more than one that only claims improved resistance.

The second factor is how many cylinders you need and whether you want them keyed alike. Eight locks on a house keyed to one key is a different job from a single front door. The third is the hardware around the cylinder: if the existing deadbolt body is worn or the strike plate is weak, we'll recommend replacing those rather than putting a precision part into poor hardware. The fourth is the condition of the door and frame. A door that has shifted with heat cycles may need adjustment first. Finally, the time of the call and the distance matter for emergency or after-hours service, since our mobile vans travel to you from our Westwood base.

The usually more economical route, if budget is tight, is to upgrade only your most exposed door first, typically the main entry, and add others later in the same key system. We'd rather tell you that than sell you a whole house on day one. Call (213) 577-1366 and describe your doors, and we'll give you a quote based on what you actually have.

Why call Wilshire Lock & Key for high security locks?

We've been in business since 1987, which means we've seen what holds up and what fails on real doors for a long time, and we choose cylinders accordingly. We have a storefront at 10740 Wilshire Blvd in Westwood and mobile service vans, so the person you reach on the phone works for the same company that comes to your door. There are no dispatch middlemen passing your job to whichever contractor is free, and no surprise swap in who arrives.

David, the owner and lead technician, oversees how we approach this kind of work. That matters here because high security is as much about judgment as parts. Choosing the right keyway, setting key authorization properly, and knowing when the frame is the weak point all come from experience, not from a catalogue.

We also answer the phone 24 hours a day, 7 days a week, year-round. Most high security installs are planned, but plenty start with an emergency: a break-in, a lost key set, a tenant who left with keys, or a business that was just burglarized. If you need immediate help while you think about upgrades, our mobile locksmith service in Simi Valley comes to you. We can make the property secure first and plan the upgrade properly after.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

What does high security mean for homes in Wood Ranch, Bridle Path, and Santa Susana Knolls?

Simi Valley is a patchwork, and the right high security answer changes from street to street. The valley floor is covered in 1960s and 1970s single-family ranch tracts, including areas like Texas Tract. Many of these homes have changed hands more than once, and the original builder-grade locks are still on the doors in plenty of them. When a home in the 93063 or 93065 ZIP changes owners, the usual first step is rekeying the locks. For owners who want more than a fresh pin set, the step up is a pick-resistant, restricted-key cylinder on the front and any garage entry, so the key history of the house truly ends at closing.

Wood Ranch is different. The 1980s to 2000s master-planned housing there often comes with HOA rules about exterior hardware finish and sometimes about what can be changed on the front door. New homeowners there often want a complete lock package set up at move-in. A high security package keyed alike across the front door, garage entry, and side doors fits that scenario well, and we can match finishes so it stays within what the HOA expects. If you're unsure about your association's rules, check them before we schedule, and we'll work within them.

Bridle Path is an equestrian neighborhood with large lots and horse gates, and the security question there is about distance and exposure. A barn, tack room, or equipment shed can sit far from the house, which means a break-in might go unnoticed for a while. Weather-rated, bump-resistant padlocks and cylinders suit those buildings better than a basic lock that corrodes or sticks, and keying them to the same system as the house keeps the key ring manageable. For the gates themselves, see our gate lock repair service.

In Santa Susana Knolls, which is adjacent to the city and unincorporated, older custom hillside homes sit on winding streets where doors may be partly out of sight from neighbors. That makes the entry door and any lower-level or garage access the places to focus. Newer hillside homes in Big Sky have a similar profile. In both areas, a pick-resistant cylinder and a reinforced strike are a sensible pairing.

Businesses along the Los Angeles Avenue corridor have their own needs. Restricted-key cylinders on rear and storage doors, and clear key control, are common requests; for the wider job, take a look at our commercial locksmith work. Our vans cover Simi Valley from the Westwood base, roughly 35 miles away, so planning ahead for larger projects helps us bring everything in one trip.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How does Simi Valley's heat and wind affect high security hardware?

Simi Valley is an inland valley with hot, dry summers, and the Santa Ana wind events that funnel through the Santa Susana Pass are a real part of life here. This matters for locks. Strong sun and repeated heat cycles make doors expand and contract, and they fade or stiffen exterior hardware, especially on south-facing entries. The routine result is a misaligned latch or a deadbolt that drags against a strike plate.

A precision cylinder doesn't like to be forced. If the bolt rubs against the strike every time you turn the key, you'll wear the internal parts faster, and in the worst case the key snaps. So part of every high security install here is checking alignment while the door is at its normal position, and adjusting hinges or the strike so the bolt slides freely. If you notice that your lock gets harder to turn on hot afternoons and easier in the morning, tell us. It usually means the door is moving, and we can fix that during the upgrade.

We also pay attention to finish and exposure. Exterior-facing cylinders on sun-exposed doors do better with a durable finish and clean, dry mechanisms. We'll advise on whether a given lock is rated for outdoor exposure, which matters for gates, barns, and side doors that get the full sun and dust.

What should you ask any locksmith before a high security install?

High security work involves your key control, so it pays to ask good questions of whoever you hire, including us. California requires locksmith companies to hold a BSIS LCO license, and you can ask any locksmith for that license number before work begins. Don't be shy about it. A reputable company expects the question.

Beyond that, ask these:

  • What exact cylinder or lock are you installing, and what does its pick and bump resistance actually rest on?
  • Is the keyway restricted, and who can order extra keys? What proof is needed?
  • What happens if I lose the key or authorization card?
  • Will you check the door, frame, and strike, or just swap the cylinder?
  • Can this be keyed alike with my other locks, and what does that do to security?
  • Who will arrive at my door: your own technician, or a subcontractor?

Frequently asked questions

What is the difference between pick-resistant and bump-resistant locks?

Pick-resistant locks are built so that manipulating the internal pins with picking tools is much harder, usually through special pins or extra locking elements. Bump-resistant locks are built so a bump key, which opens many ordinary cylinders with a few taps, doesn't work the same way. Many high security cylinders do both, and we'll tell you which features a specific lock has. Neither is pick-proof.

Can high security keys be copied at a hardware store in Simi Valley?

Generally no, not for restricted keyways. The key blanks are controlled, and copies are cut only through an authorized dealer with the right proof. That is the point of the system. It means additional keys may take some planning, so we explain the process at install and recommend having spare keys cut at the same time.

Do I need to replace my whole deadbolt, or only the cylinder?

Often the cylinder alone can be upgraded if the deadbolt body is in good shape and fits the cylinder type. If the deadbolt is worn, low-grade, or misaligned, we usually recommend replacing it. We check this during the inspection and tell you which route makes sense for your door.

Will a high security lock stop a break-in if the door is kicked in?

Not by itself. A strong cylinder protects against picking, bumping, and unauthorized copying, but a weak strike plate, short screws, or a split door frame can still fail under force. We look at the whole door assembly and recommend reinforcement where it's needed.

Can my Wood Ranch HOA stop me from changing my locks?

Some HOAs have rules about exterior hardware finish or visible changes to the front entry. Interior cylinder upgrades are usually less affected, but check your association's rules first. We can match finishes so the new hardware looks consistent with what's allowed.

Are high security locks worth it for a rental property?

They can be, mainly because of key control. With a restricted keyway, tenants can't have copies cut freely, so a landlord has better knowledge of who holds keys between tenancies. It's a cost-versus-risk decision, and we can discuss which units or doors justify it.

Can high security locks be keyed alike or on a master system?

Yes, in many cases. Keying several doors to one key is common for houses and small businesses. For larger sites with different access levels, we can plan a master key system. Keep in mind that every extra key level adds convenience and also adds some risk, so we help you balance them.

What if I lose a restricted key or its authorization card?

Call us at (213) 577-1366 as soon as you can. Depending on the system, we may be able to work from the registration records, and if the keys can't be replaced readily, we can rekey or replace the cylinder. It's far easier if you keep the card in a safe place and note who is authorized.

Do you handle high security lock service at night or on weekends in Simi Valley?

Yes. Our phone line at (213) 577-1366 is answered 24 hours a day, 7 days a week, all year. After a break-in or a lost set of keys, we can secure the property and then discuss a proper upgrade when you're ready. If you also need duplicates of standard keys, see our key duplication page.

More locksmith help in Simi Valley

High Security Locks near Simi Valley

Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

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