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Crenshaw Lock

High Security Locks in Azusa · 24/7 mobile

High Security Locks in Azusa, California

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys throughout Azusa, California. We are a fully mobile locksmith available 24/7, and we come to your home, rental or business. Call (323) 997-8867 to talk through your door and your options.

  • Mobile to your Azusa 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 standard builder-grade deadbolt is designed to keep honest people honest. A high security lock is built for a different job: resisting the specific ways a determined intruder gets past a lock, including picking, bumping, drilling, and forced-key duplication. In practice that means hardened inserts, tighter internal tolerances, more complex pin or sidebar systems, and keys that cannot be copied at a corner hardware counter without authorization.

Azusa is a city where that upgrade can make sense for very different reasons. A homeowner in a 1920s bungalow near Azusa Ave may have an original mortise lock that deserves respect but needs better protection. A family in a newer Rosedale home may want a strong deadbolt that works with the smart hardware already on the door. A landlord with student tenants near Azusa Pacific University may want keys that do not quietly multiply over the years.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are mobile only, with no storefront, so every job begins with a conversation about your door, what you are protecting, and how much security is actually appropriate. We would rather fit the right lock than sell you the most elaborate one.

How it works in Azusa

  1. 1

    Talk through your goals

    Call (323) 997-8867 and tell us about the door, the property, and what worries you: break-in attempts, lost keys, tenant turnover, or a former roommate who still has a copy. This helps us bring the right hardware to your Azusa address.

  2. 2

    Inspect the door and frame

    A high security cylinder is only as strong as the door around it. We check the door thickness, the strike plate, the screws, the frame, and any existing mortise or deadbolt body. Weak points get pointed out honestly, even when they are not locks.

  3. 3

    Choose the right level of protection

    We explain the differences between pick-resistant, bump-resistant, and drill-resistant designs, and whether you need a restricted keyway where duplicates are controlled. You decide, with clear information instead of pressure.

  4. 4

    Install and fit the hardware

    We install the new lock or cylinder on site, aligning the bolt and strike so it throws smoothly. On older doors with mortise hardware we work carefully to preserve the look of the original wherever practical.

  5. 5

    Test, key, and hand over

    We operate the lock repeatedly with the door open and closed, confirm every key works, and walk you through key control rules, including how to request additional keys safely.

Need high security locks in Azusa?

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

Call (323) 997-8867

What affects the price

  • The type of lock: a single high-security deadbolt cylinder is a different job than a full set of matched locks across several doors.
  • The level of key control chosen, since restricted and patented key systems involve different hardware and authorization than standard keyways.
  • Door and frame condition, because reinforcing a strike, replacing a worn latch, or addressing a thin frame adds labor and parts.
  • Mortise versus modern bore-hole doors; older mortise bodies in historic buildings can need more careful work or adapted cylinders.
  • The number of locks and keys, including whether everything should be keyed alike for convenience.
  • Time of day, since we answer 24/7 and after-hours or urgent visits can be priced differently from scheduled appointments.

Why Azusa chooses us

  • Fully mobile service: we bring the tools and hardware to your door in Azusa, and there is no storefront to drive to.
  • Operating since 1987, with owner David Shar personally leading the work and the standards behind it.
  • Door-first thinking: we evaluate the frame, strike, and latch rather than selling a premium cylinder on a weak door.
  • Experience with older mortise hardware common in 1900s-1920s downtown buildings, as well as modern multipoint and smart-lock-ready doors.
  • Honest recommendations: if a standard quality deadbolt meets your needs, we will tell you so.
  • Available 24/7, so a break-in repair or sudden lock upgrade does not have to wait for business hours.

High Security Locks across Azusa

Azusa has an unusually layered housing stock, and security needs vary block by block. In Downtown Azusa along Azusa Ave and Foothill Blvd, historic Route 66, you will find 1900s-1920s bungalows and brick commercial buildings, some still carrying original mortise locks. Those can often be upgraded with better cylinders rather than ripped out, keeping the character of the building while improving resistance to picking and drilling.

In Rosedale, the 2010s master-planned community in the foothills, homes tend to have newer hardware that is ready for smart locks and sometimes multipoint doors. Here a high security deadbolt or cylinder often serves as a strong mechanical backbone alongside electronic convenience. Near Azusa Pacific University and Citrus College, student-rental properties benefit from restricted keys, especially at semester turnover when copies of keys have usually scattered. Mountain Cove, the gated community at the canyon mouth, has its own considerations, since a gate does not replace a good lock on the front door.

We serve all of ZIP code 91702 and the surrounding area, whether you are off the I-210 Foothill Freeway, along Alosta Ave or Gladstone St, or up toward the SR-39 gateway to San Gabriel Canyon and the Angeles National Forest. Wherever the door is, call (323) 997-8867 and we will come to you.

Locked out or need a locksmith now?

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

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Other Azusa locksmith services

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

High Security Locks in Azusa — FAQs

What makes a lock high security instead of standard?
High security locks use tighter tolerances, hardened components, and more complex mechanisms to resist picking, bumping, and drilling. Many also use restricted keys that cannot be easily copied. A standard deadbolt lacks most of these protections.
Can you upgrade the original mortise lock on my older Azusa bungalow?
Often yes. Many mortise bodies can be fitted with a higher-security cylinder or reinforced, preserving the look of the door. We inspect the lock first and tell you honestly whether to upgrade or replace. Call (323) 997-8867 to discuss your door.
Will a high security lock work with my smart lock setup in Rosedale?
Frequently it can complement it. A high-security mechanical deadbolt can serve as a strong backup or primary lock beside electronic hardware. Compatibility depends on your door and existing system, so we evaluate it on site.
Is it worth using restricted keys in a student rental?
For many landlords near Azusa Pacific University, yes. Restricted keys limit unauthorized duplication, which helps when tenants change each semester. Rekeying at turnover pairs well with this approach.
How is high security lock pricing determined?
Price depends on the lock type, key control level, door and frame condition, number of locks, and timing. We do not quote without understanding your door. Call (323) 997-8867 and we will explain what applies to your situation.
Do you come to me, or do I visit a shop?
We are fully mobile with no storefront. We travel to your home, rental, or business in Azusa and complete the work on site.
Can a high security lock still be defeated?
No lock is unbeatable, but a good one raises the effort, time, and noise required. That is why we also check the door, frame, and strike plate, which are often the real weak points.
Are you available outside normal hours?
Yes, we operate 24/7. If you have had a break-in or need locks upgraded urgently, call (323) 997-8867 any time.
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