Open 24/7 · Greater Los Angeles & Ventura County

(323) 997-8867
Crenshaw Lock

Master Key System in Simi Valley · 24/7 mobile

Master Key System in Simi Valley, California

Crenshaw Lock Company designs and installs master key and restricted-key systems with key control for Simi Valley businesses, landlords and HOAs. We are a fully mobile locksmith available 24/7, so we come to your property. Call (323) 997-8867 to plan a system.

  • Mobile to your Simi Valley location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Large ring of master system keys with colored key caps
Open now(323) 997-8867

A master key system lets one key open many doors while each person carries only the key they need. A property manager can open every unit, a department head can open only their own area, and a tenant or employee can open just one door. Done well, it cuts down on key rings that weigh a pound and on the late-night question of who has a copy of what.

Simi Valley has plenty of places where this matters. Strip retail along Cochran St and First St, business parks near Easy St and Madera Rd, the shops and service spaces around Simi Valley Town Center, apartment and rental owners, and HOA-managed communities all deal with the same problem: keys multiply over the years and nobody can say who holds them. A planned system, with a real record of who has which key, gives control back.

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 meet you at the property, walk the doors, and build a system around how your building is actually used rather than selling a one-size package.

How it works in Simi Valley

  1. 1

    Walk the property and list every door

    We come to your location and look at each opening: front storefronts, back doors, offices, storage rooms, gates, utility rooms and any panic hardware. We note the existing lock brands, grades and condition, because that decides what can be reused and what must be replaced.

  2. 2

    Map who needs access to what

    We sit down with you to sketch the key hierarchy: a grand master for ownership or management, masters for departments, floors or building sections, and change keys for individual doors. We also talk about contractors, cleaners and seasonal staff who need limited access.

  3. 3

    Choose the key system and level of control

    We discuss conventional master keying versus restricted keyways, where duplicates can only be made with authorization. For properties where lost keys are a real worry, restricted keys add a layer of control that a hardware-store copy machine cannot defeat.

  4. 4

    Pin, install and rekey the hardware

    We bring the work to you. Existing compatible locks are rekeyed into the system, and worn or mismatched ones are replaced with commercial-grade hardware. Every cylinder is tested with its change key and every master level before we leave.

  5. 5

    Document the system and hand over keys

    We provide a clear key schedule showing which key opens which door, and issue keys against it. Keeping that record current is what makes the system worth having, so we explain how to log keys in and out.

  6. 6

    Support as your needs change

    Tenants turn over and staff come and go. We can rekey a single door, add a new tier, or cut additional authorized keys later, so the system grows with the property instead of being replaced.

Need master key system in Simi Valley?

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

Call (323) 997-8867

What affects the price

  • The number of doors and cylinders in the system, since each opening has to be keyed and tested.
  • How many levels the hierarchy needs, such as a grand master plus several department masters, which adds complexity to the pinning plan.
  • Whether existing locks can be rekeyed or must be replaced, and the grade of hardware chosen.
  • Standard keyways versus restricted keyways with controlled duplication, which involves different cylinders and key blanks.
  • Door types involved, such as aluminum storefront locks, mortise locks, panic hardware or gates, which need different cylinders.
  • How many keys you need cut at the start, and whether the work is scheduled in advance or requested after hours.

Why Simi Valley chooses us

  • Fully mobile service: we come to your shop, office or property rather than asking you to bring locks anywhere.
  • Available 24/7, so a lost master key or a sudden staffing change does not have to wait for business hours.
  • In business since 1987, with owner David Shar directly involved in the work.
  • We design around how your building is used, then document it, rather than handing over a pile of keys with no schedule.
  • We are familiar with the storefront and panic hardware common on Cochran and First, as well as residential-grade hardware in rental homes.
  • Honest advice: if you only have a few doors and a master system would be overkill, we will say so and suggest simple rekeying.

Master Key System across Simi Valley

Simi Valley's mix of buildings creates very different key-control needs. Along Cochran St and First St, strip-retail units with aluminum storefronts and commercial locks often share landlords, and a master system lets an owner reach back rooms and utility spaces without every tenant's key. In business parks near Easy St and Madera Rd, a department-level hierarchy keeps warehouse, office and shipping areas separate. Around Simi Valley Town Center, shops and service spaces benefit from tight control over who can copy keys. These properties span ZIP codes such as 93065 and 93063.

Residential communities use master systems too. Wood Ranch and Big Sky have HOA-managed clubhouses, gates, pool areas and maintenance rooms where a board needs access without scattering keys among volunteers. Landlords with rental homes in the Texas Tract or elsewhere in 93062 and 93064 can put several properties on a system so turnover does not mean a new set of keys for every property.

Whether you are near Rancho Simi Community Park, off Tapo Canyon Rd or Sycamore Dr, or reachable via the SR-118 or SR-23, call (323) 997-8867 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.

Call (323) 997-8867

Other Simi Valley locksmith services

See all of our Simi Valley services, or our citywide master key system page.

Master Key System in Simi Valley — FAQs

What is a master key system?
It is a lock arrangement in which each door has its own key, while higher-level master keys open groups of doors, and a grand master can open all of them. It gives different people the right amount of access with one key each.
Can my existing locks be part of the system?
Often yes. Many commercial cylinders can be rekeyed into a master system. We check each lock during the walkthrough and replace only those that are worn or incompatible. Call (323) 997-8867 to schedule a visit.
What is a restricted key system?
Restricted keys use a keyway that is controlled, so copies can only be made with proper authorization. It prevents staff or former tenants from duplicating keys at a hardware store, which is useful for retail, offices and rental properties.
Is a master key system less secure?
A well-designed system can be very secure, but more levels mean more theoretical risk, so we keep the hierarchy as simple as your needs allow. Good key control and records matter as much as the hardware.
Do you work with HOAs and property managers in Simi Valley?
Yes. We can key clubhouses, gates, pool areas and maintenance rooms in planned communities, and put rental properties on a shared system. Call (323) 997-8867 to discuss your community.
Can you add doors or keys to the system later?
Yes, as long as the original system was documented and has room to grow. We can add doors, create new key levels or cut authorized keys when you need them.
Do I need to come to your shop?
No. We are fully mobile with no storefront. We do the walkthrough, installation and key cutting at your property.
What if a master key is lost?
Call us right away at (323) 997-8867. Depending on the key level lost, we can rekey the affected doors or part of the system, and update your key schedule so access stays under control.
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