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Crenshaw Lock

High Security Locks in Arcadia · 24/7 mobile

High Security Locks in Arcadia, CA

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys throughout Arcadia, California. We are fully mobile and available 24/7, coming to your home, condo or business. Call (323) 997-8867 to talk through your property and the right level of protection.

  • Mobile to your Arcadia location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
High-security lock cylinder with a dimple key
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A high security lock is not just a stronger-looking deadbolt. The difference is inside the cylinder: tighter tolerances, special pin and sidebar designs, hardened inserts that resist drilling, and keys that cannot be copied at a hardware store kiosk. For many Arcadia properties, that upgrade is a practical response to real concerns, from a large custom home sitting empty during construction to a tenant space in a busy retail center.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar and our team bring that experience to Arcadia. We are a mobile-only operation, so there is no showroom to visit. We come to the door, look at what is actually installed, and recommend hardware that suits the door, the frame and how you use the property.

This page explains how a high security installation works, what affects the cost, and what to consider in Arcadia specifically, where teardown-and-rebuild homes, condos along Huntington Drive and shopping-center commercial spaces each call for a different approach.

How it works in Arcadia

  1. 1

    Talk through your concerns

    Call (323) 997-8867 and tell us what you are protecting and why. A new estate, a rental unit, and a retail suite each have different needs, and a short conversation helps us bring the right hardware.

  2. 2

    Assess the door and frame

    A strong cylinder is only as good as the door around it. We check the door material, the thickness, the strike plate, the frame and the existing hardware, and we tell you honestly if the door or frame is the weaker link.

  3. 3

    Choose the lock and key system

    We explain the options: pick- and bump-resistant cylinders, drill-resistant hardening, and restricted keyways where key duplication is controlled. For larger properties we can discuss keying several locks alike or building a master-key system.

  4. 4

    Install and reinforce

    We fit the new cylinders or deadbolts, align the bolt and strike so the lock throws smoothly, and add reinforcement where it makes sense, such as a longer-screw strike plate.

  5. 5

    Test and hand over keys

    We test every lock with the door open and closed, confirm each key works, and show you how the restricted keys should be handled, including how to request additional copies.

Need high security locks in Arcadia?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

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What affects the price

  • The grade and brand of the high security cylinder or deadbolt, and whether it uses a restricted, patent-protected key.
  • The number of locks, and whether they are keyed alike, keyed differently or part of a master-key system.
  • Door and frame condition, including whether a strike plate, reinforcement or door preparation is needed.
  • Whether the work is new construction, an upgrade of existing hardware or a commercial cylinder change.
  • The number of keys and any additional key cards or copies you want issued.
  • Timing and location: after-hours or urgent calls differ from scheduled installs, and we will explain this before work starts.

Why Arcadia chooses us

  • Fully mobile and available 24/7, so installs and urgent upgrades can happen where the property is, without a trip to a shop.
  • In business since 1987, with David Shar leading the work and drawing on decades of hands-on lock experience.
  • Honest assessment of the whole door: we will say when the frame or strike is the real weakness rather than just selling a pricier cylinder.
  • Experience with both residential keying and commercial cylinder service, from custom homes to tenant spaces.
  • Clear explanations of restricted keys and master-key tradeoffs, so you understand who can and cannot copy your keys.

High Security Locks across Arcadia

Arcadia has a lot of building activity. Across Upper Rancho, Lower Rancho and Highland Oaks, 1950s and 1960s ranch homes are regularly torn down and replaced with large custom estates. Those new homes often need a complete lockset package, and many owners want a master-key system so that front doors, side doors, a guest house and garage entries can be managed sensibly. High security cylinders are a natural fit there, particularly when a house sits unoccupied between phases of construction or after the builder hands over the keys and you want to be sure old copies no longer work.

Closer to Santa Anita and along Huntington Drive, the housing mix includes condos and apartments, where tenants and property managers have different needs. A high security cylinder on a unit entry, combined with a rekey at move-in, helps limit who still holds a working key. In ZIP code 91006 and neighboring 91007, we also see homes near Baldwin Avenue and Baldwin Stocker where owners simply want stronger protection on a front door.

Commercial spaces are part of Arcadia too, from strip centers to tenant suites near Westfield Santa Anita. Businesses there often want restricted keys for back-of-house doors and stockrooms. Whether you are in 91066 or 91077, off the I-210 or near Santa Anita Avenue, we travel to you, around the clock.

Locked out or need a locksmith now?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

Other Arcadia locksmith services

See all of our Arcadia services, or our citywide high security locks page.

High Security Locks in Arcadia — FAQs

What makes a lock high security?
High security locks use tighter manufacturing tolerances, advanced pin or sidebar mechanisms and hardened parts to resist picking, bumping and drilling. Many also use restricted keys that cannot be freely duplicated.
Do you serve all of Arcadia?
Yes. We are fully mobile and serve Arcadia neighborhoods including Santa Anita, Highland Oaks, Upper Rancho and Peacock Village. Call (323) 997-8867 to discuss your location.
Can high security locks be installed on my existing door?
Often yes, but we check the door, frame and strike plate first. If the door or frame is weak, we will tell you and explain what reinforcement makes sense.
I am building a new home in Upper Rancho. Can you supply the whole lockset package?
Yes. We can discuss keying all locks alike, keying them differently or setting up a master-key system for a new custom home. Call (323) 997-8867 to plan it.
Are the keys really impossible to copy?
Restricted keys are much harder to duplicate because blanks and authorization are controlled, but no system is absolute. We explain how copies are requested and who can authorize them.
Can you work on commercial spaces near Westfield Santa Anita?
Yes. We handle commercial cylinder changes, rekeys and high security upgrades for tenant spaces. Call (323) 997-8867 to talk through your doors and key control needs.
Will a high security lock stop all break-ins?
No lock does that. A high security cylinder resists picking, bumping and drilling, but doors, frames, windows and habits matter too. We look at the whole entry point.
How is the price determined?
It depends on the lock grade, the number of locks, the key system, door condition and timing. We explain the factors and the scope before we start work.
DS

Reviewed by David Shar — Owner & Lead Technician

Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.

Last updated 2026-10-12.

Call (323) 997-8867 · Open 24/7