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Crenshaw Lock

High Security Locks in La Cañada Flintridge · 24/7 mobile

High Security Locks in La Cañada Flintridge, CA

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys in La Cañada Flintridge. We are fully mobile and available 24/7, so we come to your home, gate or office. Call (323) 997-8867 to talk through your doors and schedule an installation.

  • Mobile to your La Cañada Flintridge 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 built to resist the specific ways locks get defeated: picking, bumping, drilling, prying and unauthorized key duplication. In a hillside community like La Cañada Flintridge, where many homes sit on long driveways, back up to the Angeles National Forest, or are tucked behind perimeter gates, upgrading the hardware on the doors that matter most is a practical way to add real resistance.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar has spent decades working on everything from builder-grade hardware to restricted-keyway systems. We are a fully mobile locksmith. There is no storefront to visit; we bring the tools, cylinders and hardware to your property and do the work on site, any hour of the day or night.

Much of the housing here is 1950s through 1970s ranch and mid-century construction, along with newer custom homes and gated estates. Those older doors often carry original or lightly updated hardware, and the best upgrade depends on the door, the frame and how the household actually uses its entries. We will look at those details first rather than sell you a one-size-fits-all package.

How it works in La Cañada Flintridge

  1. 1

    Talk through your goals

    Call (323) 997-8867 and tell us which entries concern you: front door, side or garage door, pedestrian gate, a home office or a detached studio. We ask about current hardware, who has keys, and whether you want key control, smart-lock compatibility, or both.

  2. 2

    Assess the door and frame

    A strong cylinder is only as good as what holds it in place. On site we check door thickness, bore size, the strike plate, the jamb and the screws. Older mid-century doors and frames often need reinforcement for the lock to deliver its full benefit.

  3. 3

    Choose the right hardware

    We recommend high security cylinders and deadbolts with pick-, bump- and drill-resistant features, along with a restricted keyway where you want protection against unauthorized copying. If you prefer a smart-lock package, we discuss which options pair well with a high security cylinder.

  4. 4

    Install and align

    We fit the new hardware, reinforce the strike and frame if needed, and make sure the bolt throws smoothly without binding. Properly aligned locks last longer and are less likely to fail on a cold morning or after the house settles.

  5. 5

    Key setup and testing

    We cut and test the keys, and can consolidate several doors or gates onto one key where the hardware allows. Before we leave, you operate every lock yourself, and we explain how to order additional keys and what authorization is required.

Need high security locks in La Cañada Flintridge?

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, since restricted-keyway and drill-resistant systems differ in construction and cost from standard deadbolts.
  • How many doors, gates or cylinders are being upgraded or keyed alike in one visit.
  • Whether the door and frame need reinforcement, such as a strike plate, jamb or door edge work, for the lock to perform properly.
  • Smart-lock or electronic components added alongside a high security cylinder.
  • Gate and outbuilding hardware, which often needs weather-resistant or specialty fittings.
  • Timing of the visit, including after-hours or emergency service versus a scheduled appointment.

Why La Cañada Flintridge chooses us

  • Fully mobile and 24/7: we come to your property rather than asking you to visit a shop, because we have no storefront.
  • In business since 1987, with owner David Shar personally leading the technical work.
  • We evaluate the door and frame, not just the cylinder, so the upgrade actually improves security.
  • We can consolidate house, side gate and garage onto one key where hardware allows, which suits busy households.
  • Experience with the long driveways, pedestrian gates and hillside access points common to La Cañada Flintridge properties.
  • Straightforward recommendations: if a standard quality deadbolt meets your needs, we will say so.

High Security Locks across La Cañada Flintridge

La Cañada Flintridge is split by the I-210 Foothill Freeway, and the housing on either side varies a great deal. Around Foothill Boulevard you will find many mid-century ranch homes where a new owner, perhaps a JPL engineer who just bought, wants the front door, side gate and garage all on a single high security key. Up toward Flintridge and the slopes of the Angeles forest, custom homes and gated estates often call for a more layered approach, including perimeter and pedestrian gate hardware.

In Alta Canyada, a gated hillside property might pair a high security deadbolt with a smart-lock package, then rekey the gates so old keys no longer work. In the Sagebrush area and other quiet residential pockets, homeowners tend to ask about restricted keys that cannot be casually copied, particularly when contractors, housekeepers or family members have had access over the years. We work throughout ZIP codes 91011 and 91012.

We also help people connected to the community's well-known places, from families near Flintridge Preparatory School to staff and visitors around Memorial Park, Descanso Gardens and the Foothill Boulevard corridor. Whether you reach us from Verdugo Boulevard, Angeles Crest Highway or off the 210, call (323) 997-8867 any time 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 La Cañada Flintridge locksmith services

See all of our La Cañada Flintridge services, or our citywide high security locks page.

High Security Locks in La Cañada Flintridge — FAQs

What makes a lock high security?
High security locks are designed to resist picking, bumping, drilling and forced entry, and many use restricted keyways so keys cannot be duplicated freely. They typically use tighter tolerances and hardened components compared with standard deadbolts.
Do you install high security locks at night or on weekends in La Cañada Flintridge?
Yes. We are a 24/7 mobile locksmith. Call (323) 997-8867 and we will discuss what you need and arrange the visit, whether it is urgent after a break-in or a planned upgrade.
Can you put my house, side gate and garage on one key?
Often yes, depending on the hardware already installed and what you choose. We can rekey or replace cylinders so several entries share a key, which is a common request after buying a home. Call (323) 997-8867 to go over your doors.
Will a high security deadbolt work on an older mid-century door?
Usually, but we check the door thickness, bore and frame first. Older doors and jambs sometimes need reinforcement so the lock and strike can resist force as intended.
Can you secure perimeter and pedestrian gates?
Yes. Many hillside properties have gates at the driveway and a separate walk-through gate. We can rekey or install suitable weather-resistant hardware and, where it makes sense, key them to match the house.
Can high security locks work with smart-lock systems?
In many cases, yes. We can discuss combining a high security cylinder with a smart-lock setup, though compatibility depends on the products and your door. We will advise on what suits your home.
Do I need to come to your shop to choose a lock?
No. Crenshaw Lock Company is mobile only, with no storefront. We bring options to your property and do the installation on site.
How do I get additional keys for a restricted keyway?
Restricted systems limit copying to authorized requests, so extra keys usually require proper verification. We explain the process at installation, and you can call (323) 997-8867 with any questions later.
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