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Crenshaw Lock

High Security Locks in Altadena · 24/7 mobile

High Security Locks in Altadena, CA

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

  • Mobile to your Altadena 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 built to resist the specific ways locks get defeated: picking, bumping, drilling and forced removal. Many also use restricted keyways, so copies cannot be cut at a hardware-store kiosk without authorization. In Altadena, where properties range from older Craftsman bungalows to brand-new rebuilds, the right choice depends heavily on the building, the door and how many people need keys.

The last year and a half has changed what people here ask us for. After the January 2025 Eaton Fire, much of the lock work in the area is tied to rebuilding: fresh locksets for new construction, master-key systems so a family or contractor can manage access cleanly, and secure keying for jobsites that sit unattended for long stretches. Surviving homes have their own issues, such as cylinders that seized from heat, soot and ash.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead tech David Shar. We are mobile only, with no storefront, which means everything below happens at your door. We would rather explain your options plainly and fit the hardware to your property than push the biggest-sounding product.

How it works in Altadena

  1. 1

    Talk through the property and the risk

    We start with a call to (323) 997-8867. Tell us whether this is a surviving home, a rebuild, a rental or a jobsite, how many doors and gates are involved, and who needs keys. That shapes everything that follows.

  2. 2

    Assess doors, frames and existing hardware

    A strong cylinder is only as good as the door around it. On site we check the door thickness, strike plate, frame condition and bore size. Older Craftsman doors and fire-affected frames sometimes need reinforcement or a different fitment.

  3. 3

    Select the right high security cylinder and keyway

    We match pick-, bump- and drill-resistant hardware to your needs, including restricted keyways and key control options. If you want one key for several doors, or a simple master-key system for a rebuild, we plan that before anything is installed.

  4. 4

    Install and fit the hardware

    We install the new deadbolts or cylinders, set the strikes and reinforce where needed, and make sure the bolt throws smoothly. For gates and side-yard locks on larger lots, we choose weather-appropriate hardware.

  5. 5

    Cut keys and test everything

    Keys are cut and every lock is tested from both sides, repeatedly, with the door open and closed. We also go over how key duplication works for your system so you know how to add copies later.

  6. 6

    Hand over keys and explain care

    We walk you through the system, how to keep track of keys and when to call us for adjustments. Rebuilding customers can also ask us about contractor lockboxes and re-keying once construction wraps up.

Need high security locks in Altadena?

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

Call (323) 997-8867

What affects the price

  • The type and grade of high security cylinder, including whether it uses a restricted keyway with key control.
  • The number of locks involved, from a single front door to a full house, gates and outbuildings.
  • Whether a master-key or keyed-alike system is needed, which adds planning and cutting work.
  • The condition of the doors and frames, since reinforcement or strike upgrades add to the job.
  • Whether existing hardware is seized or damaged, as with heat- and soot-fouled deadbolts, and must be freed or replaced.
  • The time of day and the location of the property, given that we work 24/7 and travel to you.

Why Altadena chooses us

  • Fully mobile service: we come to your door in Altadena, and there is no storefront to visit.
  • Operating since 1987 under owner and lead tech David Shar, with decades of experience across older and newer homes.
  • Familiarity with post-fire needs, including keying new locksets, master-key setups for rebuilds and contractor lockbox arrangements.
  • We check the door and frame, not just the cylinder, because weak surroundings undermine good hardware.
  • We explain tradeoffs honestly, including when a standard quality lock is enough and high security is not needed.
  • 24/7 availability, so work can be scheduled around construction crews or your own schedule.

High Security Locks across Altadena

Altadena's housing stock is unusually varied. Janes Village is known for its 1910s to 1940s Craftsman bungalows, Spanish Colonial homes and mid-century houses, and many of those doors have original frames and odd bore sizes. On a surviving Janes Village home, we often find deadbolts that seized after months of ash and soot exposure. We can free or replace them and, if you want, step up to a high security cylinder at the same time.

Rebuilding is a big part of the picture in ZIP codes 91001 and 91003. On an Eaton Fire rebuild, we can supply and key all-new locksets, set up a simple master-key system and place contractor lockboxes so the jobsite stays secure while crews come and go. Once the family moves in, we can re-key everything so no one from the construction phase holds a working key.

Further up toward Christmas Tree Lane on Santa Rosa Avenue, the Altadena Country Club and The Meadows, lots tend to be larger, with side yards, gates and outbuildings. A family buying or rebuilding there may want high security locks on the main entries and sturdy gate hardware as well. We serve the area around Lake Ave, Lincoln Ave, Fair Oaks Ave, Altadena Dr and Woodbury Rd, whether you are near Charles White Park, Farnsworth Park or the Cobb Estate trailhead.

Locked out or need a locksmith now?

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

Call (323) 997-8867

Other Altadena locksmith services

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

High Security Locks in Altadena — FAQs

What makes a lock high security?
High security locks are designed to resist picking, bumping and drilling, and many use restricted keyways so keys cannot be casually copied. Call (323) 997-8867 and we can explain which options suit your doors.
Do you serve Altadena at night and on weekends?
Yes. We are a 24/7 mobile locksmith, so you can call (323) 997-8867 any time and we will work out the next steps with you.
My deadbolt seized after the Eaton Fire. Can it be saved?
Often, yes. Heat, soot and ash can gum up cylinders. We can try to free and rekey them, or replace them if they are too damaged, and offer an upgrade if you want one.
Can you set up a master-key system for a rebuild?
Yes. We can supply and key new locksets and create a simple master-key system so the owner and contractor each have appropriate access. Call (323) 997-8867 to plan it.
Do you handle contractor lockboxes for jobsites?
We can set up contractor lockboxes so authorized crews can get in while the site stays secured. After construction, we can re-key so those access methods no longer work.
Will a high security lock fit my older Craftsman door?
Usually it can, but we check the door thickness, bore and frame first. Some older doors need small modifications or reinforcement for the new hardware to work well.
Can you do gates and side-yard locks too?
Yes, which is common on larger Altadena lots. We choose hardware that suits outdoor exposure and can key it alike with your house locks if you prefer.
How do I get extra keys for a restricted system?
Copies for restricted keyways are controlled, so we explain the process at handover. Reach us at (323) 997-8867 whenever you need more keys or a change.
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