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Crenshaw Lock

High Security Locks in La Verne · 24/7 mobile

High Security Locks in La Verne, California

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys in La Verne, California. We are a fully mobile locksmith available 24/7, and we come to your home, rental or hangar. Call (323) 997-8867 to talk through what your doors need.

  • Mobile to your La Verne 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. The difference is in the engineering: tighter tolerances, hardened inserts that resist drilling, pin designs that frustrate picking and bumping, and key blanks that are restricted so a copy cannot be cut at just any hardware counter. For many La Verne properties, that combination is a sensible upgrade rather than an extravagance.

La Verne has an unusual mix of buildings. Old Town La Verne has early-1900s Craftsman and period homes with original mortise locks and skeleton-key doors. The University of La Verne area has student rentals where keys change hands often. Up in North La Verne and the Marshall Canyon foothills, newer homes sit on larger lots with more exposure. Brackett Field adds hangars with their own padlock and roll-door needs. Each of these calls for a different approach, and we talk it through before recommending hardware.

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, so the work happens at your door. We would rather tell you honestly that a good standard lock suffices than sell you something your door cannot take advantage of.

How it works in La Verne

  1. 1

    Talk through the threat and the door

    Call (323) 997-8867 and tell us what you are protecting and why. A historic Craftsman front door, a rental, a side gate and a hangar roll-door each have different weak points, so we start with the real situation rather than a product.

  2. 2

    Assess the door, frame and strike

    A strong cylinder is only as good as what surrounds it. We look at door thickness, the frame, the strike plate and screw length, and tell you if reinforcement is needed. Older wood doors in Old Town often need careful fitting to keep their character.

  3. 3

    Choose the lock and key system

    We explain options such as pick- and bump-resistant cylinders, drill-resistant hardened inserts, and restricted keyways with controlled duplication. You decide how much protection and key control suits the property.

  4. 4

    Install with care for the existing hardware

    We fit the new lock cleanly, working around mortise bodies, decorative plates or aluminum and steel doors. Where a historic look matters, we aim to upgrade security without gutting the door.

  5. 5

    Test, key up and hand over

    We test throw, latch and alignment, confirm every key works smoothly, and explain how to order additional keys under the restricted system. Landlords can have multiple locks keyed alike if wanted.

Need high security locks in La Verne?

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

Call (323) 997-8867

What affects the price

  • The type of lock: a single high-security deadbolt differs from a full mortise upgrade or a multi-door keyed-alike system.
  • Key control level: restricted keyways with registered duplication involve different hardware than basic high-security cylinders.
  • Door and frame condition: reinforcement, strike upgrades or fitting work on older wood doors can add labor.
  • Number of locks and doors, including gates, garage entries, or hangar roll-doors and padlocks.
  • Door type and hardware: mortise bodies, steel, aluminum or wood may need different cylinders or adapters.
  • Timing and location: after-hours calls and travel to the foothills or the airport area can affect the quote.

Why La Verne chooses us

  • Fully mobile and 24/7, so we can come to your door without you needing to visit a shop.
  • In business since 1987, with experience on historic mortise and skeleton-key hardware common in older homes.
  • We evaluate the door and frame instead of just selling a lock that a weak frame would undermine.
  • We give straight advice, including when high security is not needed.
  • We handle both residential and light commercial needs, from Craftsman doors to hangar locks.
  • We explain key control plainly, so landlords and homeowners know who can copy their keys.

High Security Locks across La Verne

In Old Town La Verne, around D Street and Bonita Ave, many Craftsman and period homes still have original mortise locks or skeleton-key doors. Owners often want better protection without ruining century-old woodwork, and a carefully fitted high-security cylinder or mortise upgrade can do that. Homes across ZIP code 91750 often have this mix of old hardware and modern needs.

Near the University of La Verne, student rentals present a different challenge: keys get lost, copied and passed along. Landlords sometimes install restricted-key high-security locks so duplication is controlled, and rekey at the start of a term. Further north in North La Verne and the Marshall Canyon foothills, newer developments off roads like Wheeler Ave and Fruit St may call for stronger entry doors, side gates and garage access points.

Brackett Field has general-aviation hangars with padlocks and roll-door locks that face weather and constant use. We can discuss hardened padlocks and roll-door lock options. With SR-210, SR-57, Foothill Blvd and Arrow Hwy nearby, we reach La Verne from across the region. 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.

Call (323) 997-8867

Other La Verne locksmith services

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

High Security Locks in La Verne — FAQs

What makes a lock high security?
Typically a combination of pick and bump resistance, hardened components that resist drilling, and a restricted key that cannot be freely copied. Call (323) 997-8867 and we will explain what fits your door.
Can you upgrade the original lock on my Old Town La Verne Craftsman?
Often yes. We can work with mortise bodies and skeleton-key style doors, aiming to improve security while preserving the door's appearance. We inspect it first to see what is practical.
Do you offer 24/7 service in La Verne?
Yes. We are a fully mobile locksmith available 24/7 for La Verne. Call (323) 997-8867 whenever you need us.
Is a high security lock worth it for a student rental?
It can be, mainly for key control. Restricted keys limit unauthorized copies, which helps landlords when tenants change. We can rekey or install locks near the University of La Verne at term start.
Can you secure a hangar at Brackett Field?
We can discuss padlock and roll-door lock options for hangars. The right choice depends on the door type and exposure, so describe your setup when you call (323) 997-8867.
Will a high security lock stop all break-ins?
No lock is unbeatable, and we will not claim otherwise. A strong lock raises the difficulty considerably, but the door, frame and strike matter too, so we check them.
Do I need a new door for high security locks?
Usually not. Most sturdy doors can take one after fitting or reinforcement. If a door is too weak, we will tell you honestly.
How is the price determined?
By lock type, key control level, door and frame condition, number of locks and timing. We explain the factors and quote before work begins.
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