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Crenshaw Lock

High Security Locks in Norwalk · 24/7 mobile

High Security Locks in Norwalk, California

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys throughout Norwalk, California. We are fully mobile and available 24/7, so we come to your home, building or shop. Call (323) 997-8867 to discuss which upgrade fits your door.

  • Mobile to your Norwalk 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 lot of Norwalk was built quickly in the late 1940s and 1950s, when the aerospace boom filled the area with single-story stucco ranch and minimal-traditional homes. Many of those front doors still carry the original mid-century Kwikset or Weiser entry set, or a tubular deadbolt that has been turning for decades. Those locks did their job in their day, but standard pin-tumbler cylinders can be picked or bumped by someone with modest skill, and a basic deadbolt can be forced or drilled far more easily than most owners realize.

High security locks address those specific weaknesses. They use tighter-tolerance cylinders with security pins and anti-pick features, hardened inserts that resist drilling, and designs built to defeat bump keys. Many also use restricted keyways, meaning copies can only be made with proper authorization rather than at any hardware counter. That matters for landlords, small business owners and anyone who has ever wondered how many unknown keys to their door are floating around.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and David Shar and our technicians do this work on site. We are mobile only, with no storefront to visit. We look at your door, explain the options in plain language, and install hardware that suits the door, the building and how you actually use it.

How it works in Norwalk

  1. 1

    Talk through your goals

    Call (323) 997-8867 and tell us what you want to protect and what worries you: a worn deadbolt, lost keys, a past break-in attempt, or tenants and employees who come and go. We ask about the door type and any current problems so we arrive with suitable hardware.

  2. 2

    Assess the door and frame

    A strong lock in a weak door does little good. On site we check the door material, the strike plate, the frame and the screws. Older tract-home doors and aluminum sliders on original mortise latches often need reinforcement as well as a new cylinder.

  3. 3

    Choose the right level of protection

    We explain the differences among high-security cylinders, restricted keyways and heavier deadbolts, and what each does and does not resist. You decide how far to go, whether that is one front door or every unit in a building.

  4. 4

    Install and fit the hardware

    We remove the old lock, correct any bore or alignment issues, and install the new deadbolt or cylinder along with a reinforced strike where needed. We test the throw and latch repeatedly so the door operates smoothly.

  5. 5

    Cut and hand over keys

    We set up your keys, explain how restricted key copying works, and show you how to order more if needed. For multi-unit properties we can organize keying so each unit is separate, with a master arrangement if you need one.

  6. 6

    Final check and follow-up guidance

    Before leaving we test every lock with the keys you will actually use and answer remaining questions. We also point out any other weak spots we noticed, so you can decide what to address next.

Need high security locks in Norwalk?

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

Call (323) 997-8867

What affects the price

  • Number of locks: one front door is a different job from rekeying and upgrading every unit in an apartment building.
  • Grade and type of lock chosen: restricted-keyway, drill-resistant and heavier-duty hardware cost more than standard upgrades, and the range between product lines is wide.
  • Condition of the door and frame: worn bores, damaged strikes or thin frames may need reinforcement before the new lock performs as intended.
  • Commercial or specialty needs: storefront doors, glass doors and aluminum sliders often need specific hardware and may involve master keying.
  • Number of keys and key control: additional restricted keys, key cards or master key systems affect the total.
  • Timing of the visit: after-hours or urgent calls may be priced differently from scheduled daytime appointments, and we will explain before starting.

Why Norwalk chooses us

  • We have worked in Greater Los Angeles and Ventura County since 1987, so mid-century Kwikset and Weiser sets, tubular deadbolts and worn dingbat-apartment cylinders are familiar territory.
  • We are fully mobile and available 24/7, so upgrades happen at your door rather than at a counter.
  • We tell you what a lock resists and what it does not. We do not pretend any lock is unbreakable, and we check the door and frame as part of the job.
  • For landlords, we can plan rekeying and cylinder replacement across multiple units so tenant turnover goes more smoothly.
  • You deal with a locksmith who stands behind the install and explains key control clearly, led by owner David Shar.

High Security Locks across Norwalk

Norwalk's housing tells you what to look at first. In the tract neighborhoods around Carmenita Road and near Cerritos College and Studebaker Road, many 1950s stucco homes still have their original entry hardware. We have seen the scenario where a decades-old deadbolt seizes and the key will no longer turn, and a lockout becomes a replacement. When we are on site for that, upgrading to a drill- and pick-resistant lock is a sensible next step.

Along Pioneer Blvd, Firestone Blvd and Rosecrans Ave, 1960s and 70s stucco apartment buildings often have worn cylinders and aluminum sliding patio doors on original mortise latches. A landlord rekeying each unit at turnover can replace the worst cylinders with higher-security ones and keep better control of who holds keys. Small shops in the Norwalk Civic Center and Town Square district face a similar issue after an employee leaves: an after-hours rekey, or a restricted-keyway upgrade, cuts off old keys.

We serve ZIP codes 90650, 90651 and 90652, with easy access from I-5, I-605 and the surrounding boulevards, and we work near landmarks like Cerritos College and the Norwalk Metro C Line Station. Whether it is a home near Metropolitan State Hospital or a unit near the Metrolink station, call (323) 997-8867.

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Other Norwalk locksmith services

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

High Security Locks in Norwalk — FAQs

What makes a lock high security?
High security locks use tighter tolerances, security pins and hardened components to resist picking, bumping and drilling. Many also use restricted keys that cannot be copied freely. Call (323) 997-8867 to talk through options for your door.
Is my old Kwikset deadbolt a problem?
Not always, but many mid-century Kwikset and tubular deadbolts in Norwalk's 1950s homes are worn and easier to defeat than modern hardware. We can inspect it and tell you honestly whether replacement makes sense.
Can a high security lock be broken into?
No lock is unbreakable. High security hardware raises the effort, time and skill required, especially with a reinforced door and strike. We will explain what each option resists.
Can you upgrade locks for a whole apartment building?
Yes. We handle multi-unit work such as rekeying every unit at turnover and replacing worn cylinders, with optional master keying. Call (323) 997-8867 to describe your building.
Do restricted keys stop copying?
They make unauthorized copying much harder, since duplicates generally require authorization or proper credentials. Ordinary hardware-store key machines typically cannot duplicate them.
Can you work after hours on a commercial door?
Yes. We are available 24/7 and mobile, so we can rekey or upgrade a shop door after closing, for example after an employee leaves. Call (323) 997-8867.
Will a new lock fit my older door?
Usually, though older doors sometimes need bore adjustments or a reinforced strike. We check the door and frame first and tell you what is needed before installing.
Do I need to visit a store?
No. Crenshaw Lock Company is mobile only, with no storefront. We come to your home or business anywhere in Norwalk.
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