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Crenshaw Lock

Master Key System in Sherman Oaks · 24/7 mobile

Master Key System in Sherman Oaks, California

Crenshaw Lock Company designs and installs master key systems and restricted-key programs with documented key control for Sherman Oaks businesses, estates and multi-unit properties. We are fully mobile and available 24/7, and we come to you. Call (323) 997-8867 to plan a system that fits your building.

  • Mobile to your Sherman Oaks location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
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A master key system lets different people open different doors with different keys, while one authorized key set can open them all. In Sherman Oaks that need shows up in many forms: a restaurant and boutique strip along Ventura Boulevard, an office suite near the Galleria, a condo or apartment building on the valley floor, or a hillside estate with a main house, guest house, pool house and gate.

The lock work is only half of a good system. The other half is planning who holds which key, how keys are issued and returned, and what happens when someone leaves. A poorly planned master system can create more risk than it removes, because one lost top-level key can expose every door. We design the hierarchy first, then choose hardware that supports it.

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, so every consultation and installation happens on your property, at your doors, with your real layout in front of us.

How it works in Sherman Oaks

  1. 1

    Walk the property and map the doors

    We come to your site and look at every door that needs to be keyed: storefronts, back-of-house doors, offices, storage rooms, mechanical rooms, gates and side entrances. We note the existing hardware and what can be reused, and what cannot.

  2. 2

    Design the key hierarchy

    Together we decide who needs access to what. That usually means a grand master, master keys for departments or floors, and individual change keys. For a Ventura Boulevard business this might separate front-of-house staff, managers and owners. For an estate it might separate household staff, vendors and family.

  3. 3

    Choose the keyway and level of key control

    We discuss standard keyways versus restricted keyways. A restricted system limits key duplication to authorized people, which matters for high-value homes and businesses where employees come and go. High-security cylinders such as Medeco or Mul-T-Lock can be part of the plan where the risk justifies it.

  4. 4

    Install and pin the cylinders

    We rekey or replace cylinders and pin them to the agreed hierarchy. Where doors have aluminum-storefront locks, panic hardware or electronic deadbolts, we check that each works smoothly with the new cylinders before moving on.

  5. 5

    Test every key on every door

    We test each key against each lock to confirm it opens what it should and nothing else. Any binding, misalignment or worn hardware is addressed on the spot rather than left for later.

  6. 6

    Hand over documentation and key-control guidance

    You receive a clear record of the key hierarchy and advice on issuing, tracking and returning keys. If staff change or a key goes missing, we can rekey affected locks without rebuilding the whole system.

Need master key system in Sherman Oaks?

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What affects the price

  • The number of doors and cylinders included in the system, and how many separate access levels you need.
  • Whether you choose standard keyways or a restricted, patent-protected keyway with controlled duplication.
  • The grade of hardware: standard cylinders versus high-security options such as Medeco or Mul-T-Lock.
  • The condition of existing locks, panic hardware and storefront hardware, and whether any must be repaired or replaced.
  • Integration with other access points such as gate keypads, electronic deadbolts or smart locks.
  • The number of keys cut at each level, and whether you need additional keys for future hires or tenants.

Why Sherman Oaks chooses us

  • We are fully mobile and available 24/7, so planning and installation can happen around your business hours rather than ours.
  • Master key design starts with a conversation about people and access, not just a catalog of cylinders.
  • We work across commercial storefronts, multi-unit buildings and private estates, so one visit can cover very different door types.
  • We can combine the master system with related work such as panic hardware checks, Adams Rite storefront rekeying and gate keypad reprogramming.
  • Our service has been local to Greater Los Angeles and Ventura County since 1987, and the owner is personally involved in the work.
  • We are open about limits: if a part of your existing hardware cannot support a safe master system, we say so and explain the options.

Master Key System across Sherman Oaks

Sherman Oaks is two different lock environments in one city. On the valley floor, the Ventura Boulevard corridor is packed with restaurants, boutiques, salons and offices, many with aluminum storefront doors and Adams Rite locks. Around the Sherman Oaks Galleria district at Ventura and Sepulveda, and near Westfield Fashion Square, a master key system helps managers separate front-of-house, stockroom and office access, and makes it easier to respond when a manager leaves. Businesses in ZIP code 91403 and along the Van Nuys Boulevard side often have exactly this mix of door types.

South of the Boulevard, the Santa Monica Mountains hillsides and the area near Fryman Canyon have a different profile: gated estates, custom contemporary homes and winding canyon roads. A property there may want restricted keyways with Medeco or Mul-T-Lock cylinders across the main house and outbuildings, tied together with a reprogrammed driveway gate keypad. In ZIP code 91423, and in flats neighborhoods like Chandler Estates, we also see newly purchased homes where owners want a rekey, smart-lock setup and a clear plan for who holds keys.

Because we are mobile only, we drive to you from I-405, US-101 or whichever route is clearest, and we do the survey and installation on site. Whether you manage a small business near Sherman Oaks Castle Park or a multi-building property in the hills, we plan the system around your actual doors.

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Other Sherman Oaks locksmith services

See all of our Sherman Oaks services, or our citywide master key system page.

Master Key System in Sherman Oaks — FAQs

What is a master key system?
It is a lock arrangement where each door has its own key, but higher-level master keys can open multiple doors. A grand master can open all of them. It reduces key clutter while keeping access organized.
Can you set up a master key system for my Ventura Boulevard business?
Yes. We regularly consider storefronts, back rooms, offices and storage areas along the corridor. Call (323) 997-8867 and we can schedule a site visit to map your doors and plan the hierarchy.
What is a restricted keyway and is it worth it?
A restricted keyway uses blanks that are not freely available, so duplicating keys requires authorization. It is worth considering for high-value homes, offices and any place where you want real control over who can copy a key.
Can my existing locks be part of the system?
Often, yes, if the cylinders and hardware are in good condition and compatible. We inspect on site and tell you honestly which locks can be reused and which should be replaced.
Do you work on hillside estates south of the Boulevard?
Yes. We can fit high-security cylinders, set up restricted keys across a main house and outbuildings, and reprogram a driveway gate keypad. Call (323) 997-8867 to talk through your property.
What should I do when an employee or manager leaves?
With a master key system, we can rekey only the affected locks rather than every door. Keeping a record of who holds which key makes this faster. Call us any time, day or night, to arrange it.
Can a master key system work with smart locks or electronic access?
In many cases it can. Some doors may use mechanical master-keyed cylinders while others use smart or electronic locks. We plan this together so overrides and backup keys fit the overall system.
Do you have a shop I can visit?
No. We are fully mobile, so we come to your home or business in Sherman Oaks. We are available 24/7 for lock needs.
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