Open 24/7 · Greater Los Angeles & Ventura County

(323) 997-8867
Crenshaw Lock

Master Key System in Thousand Oaks · 24/7 mobile

Master Key System Installation in Thousand Oaks, CA

Crenshaw Lock Company designs and installs master key and restricted-key systems with key control for Thousand Oaks businesses and property owners. We are fully mobile and available 24/7, and we come to you. Call (323) 997-8867 to plan a system for your building.

  • Mobile to your Thousand Oaks 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 sounds simple: one key opens many doors, while other keys open only their own. In practice, a good system is a design problem. It has to reflect who works in the building, which doors they need, who should never have access, and what happens when someone leaves or a key goes missing. In Thousand Oaks, that might be a multi-suite office on Thousand Oaks Blvd, a biotech tenant space in a business park, a retail operation, or a property manager with a portfolio of rentals.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are a fully mobile locksmith, so there is no storefront to visit. We meet you at your property, walk the doors, talk through how your people actually move through the space, and then build a key hierarchy that matches. That might be a straightforward two-level system or a layered arrangement with department keys, a building master and a restricted keyway.

The other half of a master key system is key control. Without it, the system slowly degrades as keys get copied at hardware counters and passed around. Restricted-key systems limit duplication to authorized people, and a clear record of who holds what lets you answer the question every manager eventually faces: who can get into this room? We help you set that up so the system stays organized years later.

How it works in Thousand Oaks

  1. 1

    Walk the property and define the doors

    We come to your site and look at every opening that will be part of the system: suite entries, storage rooms, server or lab-adjacent spaces, mechanical rooms, gates and shared areas. We note the existing hardware and what can be reused versus what needs to be changed.

  2. 2

    Design the key hierarchy

    Together we decide who needs access to what. We map out change keys for individual doors, group or department masters, and a grand master if the building calls for one. We also discuss whether any areas should sit outside the master entirely.

  3. 3

    Choose hardware and a keyway

    Based on the design, we recommend cylinders and a keyway suited to your security needs. For sites that want to limit unauthorized copying, we discuss restricted keyways with controlled duplication rather than keys any shop can cut.

  4. 4

    Install and pin the cylinders

    We install new cylinders or rekey existing hardware where it makes sense, pinning each lock to the planned hierarchy. Because we are mobile, the work happens at your location, and we can plan it around business hours and tenant schedules.

  5. 5

    Test every door and every key level

    Before we finish, we test each key against each lock to confirm that the right keys open the right doors and that the wrong ones do not. Mistakes in a master system are far easier to fix at this stage than after keys are handed out.

  6. 6

    Set up key control and records

    We help you organize a key schedule recording who holds which key, how to request additional keys, and what to do when someone leaves. This documentation keeps the system manageable as staff and tenants change.

Need master key system in Thousand Oaks?

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 included in the system, since each opening needs hardware that is keyed to the plan.
  • The complexity of the hierarchy, such as a simple master versus multiple department levels with a grand master.
  • Whether existing locks can be rekeyed or the hardware needs to be replaced to support the design.
  • The level of key control chosen, including restricted keyways and controlled duplication versus standard keys.
  • How many keys are needed at each level and for how many people.
  • Scheduling factors, such as phased work across tenant suites or after-hours installation.

Why Thousand Oaks chooses us

  • Fully mobile service: we come to your office, suite or property, so there is no shop trip and no need to bring hardware to us.
  • Operating since 1987, with the owner, David Shar, leading the technical work.
  • Design-first approach: we talk through who needs access before we touch a cylinder, so the hierarchy fits how you operate.
  • Key control is part of the conversation, not an afterthought, so the system stays organized after the installation day.
  • Available 24/7, which matters when a key is lost or a tenant changes and doors need attention outside normal hours.
  • We also handle high-security rekeying, gates and access hardware, so one provider can cover related needs on the same property.

Master Key System across Thousand Oaks

Thousand Oaks has a strong commercial and institutional base, from the Civic Arts Plaza and The Oaks mall to the large office and biotech parks around Rancho Conejo Blvd and Thousand Oaks Blvd. With Amgen headquartered in town and many life-science and professional tenants nearby, multi-suite buildings often need a clear key structure that separates tenants, shared areas and service access. We work with properties in ZIP codes such as 91360 and 91362, and across the wider Conejo Valley including 91320, 91358 and 91359.

Master key needs here are not only for offices. In Newbury Park, small business centers and multi-unit properties often need a practical system that a manager can run without confusion. In North Ranch and Dos Vientos Ranch, where gated and custom estates often use high-security cylinders, a restricted or master arrangement can help owners who manage staff, guest houses or multiple outbuildings. In Lynn Ranch and older central Thousand Oaks, rental owners with several ranch-style homes sometimes want one key for maintenance access and individual keys for each property.

We reach customers along US-101, SR-23, Moorpark Rd, Lynn Rd, Hampshire Rd and Borchard Rd, and we can coordinate around campus-style or multi-building sites. Call (323) 997-8867 to talk through your property, and we will help you work out a system that fits.

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 Thousand Oaks locksmith services

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

Master Key System in Thousand Oaks — FAQs

What is a master key system?
It is a lock and key arrangement where each lock has its own key, and higher-level keys can open groups of locks. A master key might open every suite on a floor, while individual keys open only one door. Call (323) 997-8867 to discuss a design for your building.
Do you offer master key systems for Thousand Oaks business parks and biotech tenants?
Yes. We design systems for multi-suite offices, business parks and similar properties, including layouts that keep tenant spaces separate while giving a property manager appropriate access to common and service areas.
What is a restricted keyway and why would I want one?
A restricted keyway uses key blanks that are not freely available, so duplicates generally must be authorized. It is useful when you want tighter control over who can copy keys, which is common for commercial properties and some estates.
Can you convert my existing locks into a master key system?
Often, yes. Depending on the hardware, we can rekey existing cylinders into a new hierarchy. Some locks may not support it or may not suit your security needs, in which case we will tell you and suggest replacements.
Do I need a grand master key?
Not always. A grand master suits buildings with several departments or tenants and a single authority needing full access. Smaller sites often work well with a simpler two-level setup. We will talk through which fits your property.
What happens if a master key is lost?
A lost master key is a serious matter because it opens many doors. Depending on the system, we may rekey affected cylinders or restructure the hierarchy. Call (323) 997-8867 any time, since we are available 24/7.
Can you work outside business hours so tenants are not disrupted?
Yes. We are mobile and available around the clock, so we can plan installation for evenings or other times that suit your operation and minimize disruption.
Do you have a shop I can visit?
No. Crenshaw Lock Company is fully mobile, so we come to your property in Thousand Oaks or elsewhere in our service area to assess, install and test the system.
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