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Crenshaw Lock

High Security Locks in Alhambra · 24/7 mobile

High Security Locks in Alhambra, California

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys throughout Alhambra, California. We are fully mobile and available 24/7, so we come to your home, shop or building. Call (323) 997-8867 to talk through the right lock for your door.

  • Mobile to your Alhambra 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 simply a more expensive deadbolt. It is a cylinder and keyway engineered to resist the specific methods that defeat ordinary locks: picking, key bumping, drilling, and unauthorized key duplication. In Alhambra, where so many doors are decades old and so many properties are shared between tenants, employees and family members, those protections matter in practical ways.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar and the team bring that experience to every installation. We are a mobile service only. There is no storefront to visit; we bring the hardware, tools and know-how to your door, whether that is a Craftsman bungalow, a Main Street storefront or a courtyard apartment building.

The goal is a good fit, not the most hardware possible. A restricted keyway that controls who can copy your keys can be worth more than any amount of extra metal on a door that is otherwise easy to bypass. We look at the whole door, the frame, the strike and the way the property is actually used, then recommend upgrades that make sense for it.

How it works in Alhambra

  1. 1

    Talk through your situation

    Call (323) 997-8867 and tell us about the door, the building and your concerns. Are you worried about bumping, lost keys, a former tenant or employee, or a past break-in attempt? That conversation shapes what we bring.

  2. 2

    On-site door and hardware assessment

    We inspect the door, frame, strike plate, latch and existing lock. A high security cylinder only helps if the door around it is sound, so we point out weak spots such as thin strikes, short screws or worn wood in older frames.

  3. 3

    Choose the cylinder and key control level

    We explain options such as pick-, bump- and drill-resistant cylinders and restricted keyways, where key duplication is controlled. You decide how tightly you want keys managed, from a family home to a business with several staff.

  4. 4

    Installation and fitting

    We install the new hardware at your door, adapting to the existing prep where possible. On older wood doors and aluminum storefronts we take care to fit the lock cleanly and avoid unnecessary damage to original finishes.

  5. 5

    Testing and key handoff

    We cycle the lock repeatedly, check the latch and deadbolt throw, and confirm every key works smoothly. You receive your keys and a clear explanation of how to order additional ones under the system's key control.

  6. 6

    Follow-up guidance

    We leave you with practical advice on reinforcing the door, managing who holds keys, and when to rekey as tenants or staff change.

Need high security locks in Alhambra?

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

Call (323) 997-8867

What affects the price

  • The grade and type of lock chosen, including the level of pick, bump and drill resistance and whether the keyway is restricted.
  • The number of doors or cylinders to be upgraded, and whether they can be keyed alike for convenience.
  • Door and frame condition, since older wood doors or worn strikes may need reinforcement for the lock to perform as intended.
  • Door type, such as a wood bungalow door, an aluminum storefront or a multi-unit common-area door, which affects fitting and hardware selection.
  • The number of keys needed and any key control or card-based duplication restrictions.
  • Time of day and urgency, because we operate 24/7 and after-hours or emergency calls differ from scheduled visits.

Why Alhambra chooses us

  • Fully mobile service: we come to your Alhambra property with hardware on hand rather than asking you to visit a shop.
  • Operating since 1987, with owner David Shar personally involved in the work.
  • Honest recommendations: we will tell you when a door repair or a rekey solves your problem better than a full high security upgrade.
  • Experience with both older homes and commercial storefronts, so we handle original wood doors and aluminum frames with equal care.
  • Key control explained plainly, so you understand who can and cannot copy your keys after installation.
  • Available 24/7, including when a break-in or lost key makes an upgrade urgent.

High Security Locks across Alhambra

Alhambra has long been called the City of Homes, and much of that character lives in its older neighborhoods. In the Bean Tract and Midwick Tract, both among the city's designated historic single-family areas, Craftsman and Spanish or Mediterranean Revival bungalows often still carry original mortise locks and period doorsets on wood-frame doors. Upgrading security there takes care. We can often add a high security deadbolt or cylinder while respecting the look of the door, and we can discuss mortise options when the original hardware is seized or worn. Homes near Emery Park and in the Airport Tract benefit from the same careful approach.

Downtown Alhambra and the Main Street dining and entertainment corridor, along with the Valley Blvd commercial district, have a different set of needs. Aluminum storefronts, mixed-use buildings over retail and shared back doors call for cylinders that resist tampering and keyways that limit unauthorized copies, particularly where staff turnover is common. For properties in ZIP code 91801 near Main Street or 91803 toward the Almansor Park side of town, we can plan the work around business hours so you are ready to open.

The city also has plenty of mid-century apartment and courtyard buildings. For owners and managers, a restricted key system across unit doors, common areas and mailboxes makes turnovers cleaner and cuts down on stray copies. Whether you are off Fremont Ave, Atlantic Blvd or Valley Blvd, or just off the I-10, we come to you at any hour. Call (323) 997-8867.

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Other Alhambra locksmith services

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

High Security Locks in Alhambra — FAQs

What makes a lock high security rather than standard?
High security locks use tighter manufacturing, special pin or sidebar designs and hardened parts to resist picking, bumping and drilling. Many also use restricted keyways so keys cannot be freely duplicated at a hardware store. Call (323) 997-8867 to discuss options.
Can you install high security locks on my historic Alhambra bungalow?
Usually yes. In Bean Tract, Midwick Tract and similar homes, we can often add a high security deadbolt or cylinder in a way that suits the period door. If the original mortise lock is still there, we can discuss whether to keep, repair or supplement it.
Will a high security lock stop a break-in by itself?
No lock does everything alone. Burglars often attack the door frame, strike plate or a window instead. We check the door and frame and suggest reinforcement so the lock is not the only line of defense.
Do you serve Main Street businesses after hours?
Yes. We are 24/7 and fully mobile, so we can work outside business hours at storefronts in downtown Alhambra or along Valley Blvd. Call (323) 997-8867 to arrange a time.
What is a restricted keyway and why does it matter?
A restricted keyway uses a key blank that is not sold openly, so copies can only be made through authorized channels. It is especially useful for rental properties and businesses where you want to know who holds keys.
Can all the locks in my apartment building use one key system?
Often yes. We can set up unit doors, common areas and mailboxes under a coordinated key plan, with options to key some locks alike. We will go over what suits your layout during the assessment.
Do I need to replace my whole lock set?
Not always. Sometimes only the cylinder needs upgrading, while the rest of the hardware stays. We assess what you have and recommend the least you need to reach the protection you want.
Do you have a shop I can visit?
No. Crenshaw Lock Company is mobile only. We come to your Alhambra location, any time of day or night, with the tools and hardware to do the job on site.
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