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Crenshaw Lock

High Security Locks in Cerritos · 24/7 mobile

High Security Locks in Cerritos, California

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

  • Mobile to your Cerritos 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 the person who is not. These locks use tighter tolerances, hardened inserts and more complex pin or sidebar designs to resist picking, bumping and drilling, and many pair with restricted keys that cannot be copied at a hardware-store kiosk. For many Cerritos homes and businesses, that is a sensible upgrade.

Cerritos was developed as a master-planned city, and much of it was built out in the 1970s. That means a lot of two-story tract homes, townhome and condo communities, and commercial centers that still carry original or lightly updated hardware. Many of those doors have been rekeyed many times, handed between owners and tenants, or fitted with keypads and smart locks without anyone looking closely at the mechanical lock underneath. A high security cylinder is often the missing piece.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987 under owner and lead technician David Shar. We are mobile only, with no storefront to visit, so the work happens at your door. We look at what you have, explain the options plainly, and install only what makes sense for the door, the risk and the way you use the property.

How it works in Cerritos

  1. 1

    Talk through your goals

    Call (323) 997-8867 and tell us about the property: a two-story home near Cerritos Towne Center, a storefront, an office suite or a gate. We ask what worries you, such as lost keys, former tenants, key copying or past break-in attempts, so we can recommend something that fits.

  2. 2

    On-site door and hardware assessment

    We come to you and examine the door, frame, strike plate and existing lock. A strong cylinder in a weak frame is only partly effective, so we check for thin jambs, short screws and loose strikes that would undermine the upgrade.

  3. 3

    Choose the lock and key system

    We explain the differences between pick-resistant, bump-resistant and drill-resistant designs, and between restricted keyways and standard ones. For businesses, we also discuss master-key structure so management can control who holds what level of access.

  4. 4

    Installation and reinforcement

    We install the new cylinders or deadbolts, and where needed add reinforced strike plates, longer screws or other frame strengthening. If you want a keypad or smart lock, we can pair it with a high security mechanical backup.

  5. 5

    Key issuing and testing

    We cut and hand over your keys, test every lock repeatedly in both directions, and confirm the door latches and locks smoothly. We explain how restricted key duplication works so you know how to authorize extra copies later.

  6. 6

    Records and follow-up guidance

    We walk you through care and what to do if a key is lost. Keep your key cards or authorization paperwork somewhere safe, since restricted systems often require proof of authorization to duplicate.

Need high security locks in Cerritos?

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

Call (323) 997-8867

What affects the price

  • The lock grade and design chosen, since pick-, bump- and drill-resistant ratings and restricted keyways vary widely in complexity and cost.
  • The number of doors or cylinders involved, including whether you want every lock keyed alike or a structured master-key system.
  • Whether the door and frame need reinforcement, such as strike plates, longer screws or jamb repair, to get the full benefit of the lock.
  • The number of keys or key cards you need issued, and whether they are restricted and require authorization to copy.
  • Whether the job is combined with other work, such as a rekey, smart-lock or keypad installation, or commercial storefront hardware.
  • The time of day and the location of the job, since after-hours and urgent calls take different scheduling than planned appointments.

Why Cerritos chooses us

  • We are fully mobile and available 24/7, so upgrades and urgent security fixes can be done at your door instead of requiring a trip to a shop.
  • We have worked in Greater Los Angeles and Ventura County since 1987, and owner David Shar leads the technical work.
  • We assess the door and frame, not just the cylinder, so you do not pay for a premium lock that a weak jamb can undo.
  • We explain what each level of protection actually does and does not do, and we will say when a lower-cost option is enough.
  • We handle both residential and commercial needs, from townhome front doors to aluminum-storefront hardware and master-keyed suites.
  • We can combine mechanical high security cylinders with keypad or smart-lock hardware for homeowners who want both convenience and a strong backup.

High Security Locks across Cerritos

Cerritos has a distinctive mix of housing and commerce, and that shapes how high security locks get used. Around Cerritos Towne Center and the surrounding residential streets in ZIP code 90703, many two-story homes from the 1970s have changed hands in recent years. New owners often start with a full rekey and then decide to upgrade the front and garage-entry doors to restricted-key high security cylinders, sometimes alongside a keypad or smart lock.

The commercial side is just as active. In the Los Cerritos Center district, retail tenants and new management teams often need storefront rekeying and a clear master-key structure so staff, managers and landlords each have the right level of access. Aluminum-storefront doors have their own hardware, and a restricted keyway helps prevent copies of keys from circulating after staff turnover. Around Cerritos Auto Square, dealerships and service businesses have their own concerns about office, parts and lot access.

We reach customers throughout the city, whether you are near Cerritos Center for the Performing Arts, the Cerritos Library or the Civic Center and Sculpture Garden, or coming off SR-91, I-605, South St, Del Amo Blvd or Bloomfield Ave. Because we are mobile only, there is no shop to find. Call (323) 997-8867 and we will come to the property.

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 Cerritos locksmith services

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

High Security Locks in Cerritos — FAQs

What makes a lock high security?
High security locks use tighter tolerances, hardened components and more complex internal designs to resist picking, bumping and drilling. Many also use restricted keys that cannot be duplicated without authorization.
Do you install high security locks at homes in Cerritos?
Yes. We work on single-family homes, townhomes and condos throughout Cerritos. Call (323) 997-8867 and we will come to your door to assess it and discuss options.
Will a high security lock work with my existing door?
Often yes, but we check the door, frame and strike plate first. Sometimes a reinforced strike or small modification is needed so the lock performs as intended.
Can I combine a high security lock with a smart lock or keypad?
In many cases, yes. Some owners of 1970s two-story homes keep a high security mechanical cylinder as a backup while adding keypad convenience. We will advise on compatibility for your door.
Can businesses get master-keyed high security systems?
Yes. For retail tenants and offices, we can set up a master-key structure with restricted keys so management controls access. Call (323) 997-8867 to discuss your layout.
Can restricted keys be copied?
Not at ordinary key kiosks. Restricted systems usually require authorization to duplicate keys, which helps prevent unauthorized copies, though it also means you should keep your authorization details safe.
Are you available after hours?
Yes, we are available 24/7 and fully mobile. We do not have a storefront, so we come to your location.
Is a high security lock the same as a rekey?
No. A rekey changes the internal pinning of an existing lock so old keys stop working. A high security lock replaces the cylinder with a more resistant design. Many customers do both together.
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