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Crenshaw Lock

High Security Locks in San Fernando · 24/7 mobile

High Security Locks in San Fernando, California

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys throughout San Fernando, 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 options.

  • Mobile to your San Fernando 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 engineered to resist the specific ways locks get defeated: picking, bumping, drilling, and forced removal. Many also use restricted keyways, so a key cannot be copied at a hardware-store kiosk without authorization. For some San Fernando properties that extra resistance is worth having, and for others a well-installed standard deadbolt is plenty. We will tell you which is which.

San Fernando is a small, walkable city of about 2.4 square miles, completely surrounded by the City of Los Angeles, and its buildings vary a great deal. You have early-1900s bungalows and Spanish or craftsman homes, postwar single-family tracts, and an older downtown of brick commercial buildings with transoms and storefront doors. Each of those calls for a different approach to fitting a high security cylinder, and a lock that suits a tract home may not suit a century-old mortise door.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are mobile only, with no storefront to visit. We bring the hardware and tools to your door, assess what is there, and install the lock on site.

How it works in San Fernando

  1. 1

    Talk through the situation

    Call (323) 997-8867 and tell us about the door, the property, and what prompted the upgrade, whether it was a break-in, a tenant change, or simply wanting better protection. We will ask a few questions so we arrive prepared.

  2. 2

    On-site assessment of the door and hardware

    We look at the door material, thickness, frame, strike plate, and the lock already in place. On older doors we check whether the existing mortise body or bore can accept a modern cylinder without damaging the wood or the original character.

  3. 3

    Choose the right level of protection

    We explain the differences between high security cylinders, restricted keyways, and reinforced strikes in plain language. You decide how much protection fits your risk and budget, with no pressure to buy more than the door can benefit from.

  4. 4

    Install and reinforce

    We fit the high security lock and, where it makes sense, reinforce the weak points around it, such as the strike plate and frame screws. A strong cylinder is only as good as the door and frame holding it.

  5. 5

    Cut and test the keys

    We cut or program your keys, test every one of them in the lock, and confirm the bolt throws smoothly. We also explain how to request additional keys under the restricted key system.

  6. 6

    Walk-through and handoff

    Before we leave, we show you how the lock operates, how to care for it, and how to handle future key copies so that control of your keys stays with you.

Need high security locks in San Fernando?

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 brand you choose, since restricted-keyway and drill-resistant cylinders vary widely in construction.
  • How many doors and cylinders are being done, and whether you want them keyed alike on a single key.
  • The condition and type of the door: a vintage wood door or older mortise lockset may need careful fitting that a modern slab door does not.
  • Whether the strike plate, frame, or door edge needs reinforcement to get the full benefit of the new lock.
  • The number of keys you need and whether they are restricted, which affects both cost and how copies are controlled.
  • The time of day and the location of the job, since we are available around the clock and travel to you.

Why San Fernando chooses us

  • We are fully mobile and have served the region since 1987, so we handle the work at your door with real experience behind it.
  • We help you decide whether high security is genuinely needed, and we say so when a good standard deadbolt will do the job.
  • We are comfortable with older buildings, including early-1900s mortise hardware and downtown storefront doors, and aim to preserve what is worth preserving.
  • We reinforce the door and strike, not just the cylinder, because a strong lock in a weak frame leaves the weak point unchanged.
  • You deal with a locksmith who explains the options plainly and does not use hype or inflated claims.
  • We are available 24/7, so a security upgrade after a break-in does not have to wait for business hours.

High Security Locks across San Fernando

In ZIP code 91340, the housing and building stock tells you a lot about what a high security upgrade involves. Around the Las Palmas Park neighborhood, many early-1900s bungalows still carry original mortise or skeleton-key locks. Owners there often want modern protection without losing a vintage door, and we can usually fit a high security cylinder or a modern deadbolt in a way that respects the original woodwork.

Downtown, along the San Fernando Mall and the corner of Truman Street and San Fernando Road, the buildings are early-1900s brick with transoms and storefront doors. When a shop changes hands, the new owner often needs the old commercial lock repaired and rekeyed, and it is a natural moment to move to a restricted key system so former tenants and staff cannot keep working copies. Further out near Layne Park and Recreation Park, postwar single-family homes tend to have standard slab doors that take high security cylinders easily.

San Fernando is its own municipality, with its own city hall and police department, but it is fully reachable by road. We reach it via I-5, CA-118, San Fernando Road, Maclay Avenue, or Brand Boulevard, and we serve homes and businesses near the Lopez Adobe, the San Fernando Mall, and the neighborhoods around Mission San Fernando Rey de Espana. Call (323) 997-8867 any hour.

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 San Fernando locksmith services

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

High Security Locks in San Fernando — FAQs

What makes a lock high security?
High security locks use cylinders designed to resist picking, bumping, and drilling, and many use restricted keys that cannot be freely duplicated. They are built with tighter tolerances and hardened components. Call (323) 997-8867 to discuss which type suits your door.
Can you install a high security lock on an old San Fernando bungalow door?
Often yes. Early-1900s homes near Las Palmas Park frequently have original mortise or skeleton-key hardware. We assess the door and, where possible, fit a modern high security lock while keeping the vintage door intact.
Do I need high security locks for my downtown storefront?
It depends on your risk. Older storefront doors on the San Fernando Mall often have aging hardware, and a restricted key system is a smart choice after an ownership change. We can rekey or upgrade the lock and advise on what makes sense.
Are high security keys harder to copy?
Yes, most use restricted keyways, so copies are made only through authorized channels. That helps you control who has access. We explain how to request extra keys when we install the lock.
Will a high security lock stop a break-in by itself?
Not alone. Many forced entries target the door frame or strike plate rather than the cylinder. That is why we check and reinforce those areas as part of the installation.
Do you offer 24/7 service in San Fernando?
Yes. We are a fully mobile locksmith available around the clock. Call (323) 997-8867 at any hour, including after a break-in when you need your door secured quickly.
Do I have to come to a shop to choose a lock?
No. We are mobile only and have no storefront. We come to your property, look at your door, and install the lock on the spot.
How is the price of high security locks determined?
It depends on the lock grade, number of cylinders, door condition, any reinforcement needed, and how many restricted keys you want. We discuss these factors with you before starting work, so you know what to expect.
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