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Wilshire Lock & Key

24/7 locksmith · Studio City, CA

Master Key System in Studio City, CA

Wilshire Lock & Key designs and installs master key systems in Studio City, from restricted keyways to full key hierarchies for offices, shops, and apartment buildings. David oversees every layout. We answer 24 hours a day, seven days a week, at (213) 577-1366, and we work from a Westwood storefront plus mobile vans.

  • Since 1987
  • Westwood storefront + mobile vans
  • A person answers, day or night
Lock cylinder, follower and pinning kit on a workbench during a rekey

What is a master key system, and does your Studio City property need one?

A master key system builds a hierarchy into your locks. Every door has its own key, usually called a change key, that opens that door and no other. Above it sits a master key that opens a defined group of doors. In larger systems there is a grand master that opens several groups at once. Instead of a ring of keys that nobody can keep straight, each person carries one key that opens exactly what their role requires.

Mechanically, in the common pin tumbler cylinder, each lock is built with an extra pin or wafer so the plug can turn at more than one position. That means more than one key can operate it. This is also why we tell people early that master keying trades a small amount of pick resistance for convenience. It is a sound trade for most buildings when the system is laid out carefully. It is a poor trade when it is thrown together.

You probably need one if any of these describe your situation:

  • Managers or owners need to reach every room, but staff should only reach their own areas.
  • A building has individual units or suites plus shared doors such as a utility room, trash enclosure, or back stairwell.
  • Keys have been copied over the years and nobody can say how many are in circulation.
  • You are tired of carrying a heavy ring and guessing which key fits which door.
  • A new lease, new hire, or new owner means this is a natural moment to reset access.

What goes wrong without key control?

Most properties do not start with a plan. A door gets a lock, the lock gets two keys, and then someone has copies cut at a hardware counter because it is easy. Years later there is no record of who holds what. When an employee leaves or a tenant moves out, you cannot tell whether a key walked out with them.

The usual workaround is to rekey door by door whenever something happens. That works, but it is the slow and expensive way to manage a building over years. A planned key control system fixes the structure once. After that, losing a key means dealing with one level of the hierarchy rather than the whole property.

Convenience keys cause the other common problem. When the only way to open the stockroom is the same key that opens the front door, everyone ends up with access to everything. A hierarchy lets you separate public doors, staff doors, and sensitive doors without issuing a different key for each.

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How do we design and install a master key system?

The design work matters more than the hardware. A rushed layout is hard to fix later, because adding doors, people, or levels to a poorly planned system can force you to rekey the whole thing. Here is how we handle it from the first call:

  1. Walk the property or review the plans. We count the doors, note the hardware already in place, and look at what each door does: front, back, office, storage, utility, common area.
  2. Map who needs access to what. We sit down with you, or with whoever manages the property, and sort doors into groups and people into roles. This becomes the hierarchy: change keys, masters, and a grand master if the building warrants one.
  3. Check the existing hardware. Some cylinders can be converted to a master keyed pinning. Some locks are old or worn and are better replaced than altered. We tell you which is which before any work starts.
  4. Choose the keyway. This is where we talk about a standard keyway versus a restricted keyway with duplicate-protected keys, and which one fits the level of control you actually want.
  5. Pin and cut the system. We build the cylinders to the agreed layout and cut the keys. The bitting records are written down and kept organized so the system can be extended later.
  6. Test every door with every key that should and should not open it. A master key system is only finished when we have confirmed the whole matrix, not just that the keys turn.
  7. Hand over the key schedule. You get a clear record of which key opens which doors, so a future hire, a lost key, or an added suite does not turn into guesswork.

What are restricted keyways and duplicate-protected keys?

A standard key blank can be bought almost anywhere, which is exactly why key control fails. A restricted keyway uses a blank profile that is not sold openly. Keys cannot be duplicated at the typical hardware counter or kiosk, and the blanks are only available through authorized channels. Many restricted systems also come with a registered authorization, so copies are cut only when the account holder approves them. This is what people mean by duplicate-protected keys.

That is useful for employee key control. If a key has to be copied, you decide who may order it. It also gives you a paper trail instead of a mystery.

Restricted does not mean untouchable. A restricted keyway makes casual copying hard, but it does not make a lock immune to picking, drilling, or forced entry, and some protections depend on the manufacturer's patent status and program terms. We confirm what a specific product line provides before we recommend it. If you also want physical resistance to attack, that is a different layer, and we cover those options under high-security locks.

Our job is to match the level of protection to your actual risk. A small office with five staff does not need the same system as a building with dozens of units and a rotating cast of contractors.

  • Standard keyway: the lighter-cost option, fine where copies are not a real concern.
  • Restricted keyway: key blanks are controlled, so copying requires authorization.
  • Patent-protected or registered systems: stronger copy control, with more steps when you order additional keys.
  • Layered approach: a restricted master key system for most doors and higher-security hardware where the consequences of a breach are greater.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

What affects the cost of a master key system?

We do not quote a price over the phone without seeing the layout, and we will not give you a number on a web page, because the honest answer depends on these factors:

  • Number of doors and cylinders. Every cylinder in the system is pinned and tested, so the size of the project drives most of the cost.
  • Number of levels. A simple master over a handful of doors is much less work than a multi-level hierarchy with a grand master and several sub-masters.
  • Existing hardware. Cylinders that can be reused keep the project lighter. Worn, mismatched, or failing locks may need replacement.
  • Standard or restricted keyways. Restricted systems cost more up front because of the controlled blanks and registration, but they save you from the cost of an uncontrolled key supply later.
  • Number of keys issued. Each change key, master, and spare adds cutting time and material.
  • Door condition. A door that sticks or a latch that does not line up should be fixed before new cylinders go in, or the new system inherits an old problem.
  • Expansion plans. Planning room for future suites or hires makes the first design a bit more involved, but it avoids a rekey of everything later.

Why does a master key system work differently across Studio City properties?

Studio City is a mix, and the right layout depends on which part of it you are in. Along the Ventura Boulevard corridor, we see the typical shop-and-restaurant setup: a public front door, a staff-only back door, an office, a storage area, and sometimes a shared alley door. A master key system there usually means the owner or manager holds the master, shift leads carry keys to the staff doors, and the stockroom or office stays on a separate level. If you are mainly working on the door itself, our storefront lock repair page covers that side.

North of the boulevard, apartments and condos cluster along Moorpark Street and Ventura Place. Buildings like these are the classic case for an apartment master key system. Each unit has its own change key, the manager holds a master for maintenance, and common doors such as laundry, trash, and mail areas sit on their own group. If you own or manage rental property in the 91604 or 91602 ZIP codes, the planning side overlaps with what we cover in locksmith for landlords, including what to do when a tenant moves out and the unit needs to be reset.

Lockouts are the day-to-day reason people call about apartment buildings along Moorpark Street, and a good key hierarchy reduces how often a lockout becomes a building-wide problem. When a manager's master opens the unit without a drilled lock, everyone's day is easier.

In Colfax Meadows, Tujunga Village, and the Silver Triangle, many 1920s to 1940s character homes still have vintage mortise locksets in service. A master key system is rarely the first thing a homeowner there needs. It becomes relevant when one owner holds several properties, a duplex or courtyard rental, or a home with a detached studio or guest unit. Those older mortise locks need a hands-on look before we decide whether they can be keyed into a system or should be left alone and handled separately.

On the hillside streets off Laurel Canyon Boulevard and in the Fryman Canyon hillsides, houses are often more spread out, with gates and outbuildings. A hierarchy that covers the main house, a gate, and a guest house is a reasonable use of master keying, though in those cases we also look at whether electronic hardware would serve better. Canyon and hillside lots hold more winter shade and damp than the open valley floor, and that moisture can swell wood doors seasonally. A door that sticks or binds changes how a lock behaves, so we check the fit of the door as part of the job.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How does a key hierarchy help with employee key control?

Employee key control is mostly about knowing who holds what and being able to change that without disrupting everyone else. A properly designed hierarchy makes that possible. When a key holder at a lower level leaves, only the doors that key opens need attention. The rest of the system keeps working, and the master keys do not have to be recut.

In practice, we suggest keeping a simple written log of key issue and return, even for a small team. Without it, a restricted keyway only protects you from outside copying, not from the ordinary drift of keys inside the business.

We also tell business owners where a mechanical system stops being the right tool. If you need to know exactly who opened which door and when, or you want to cancel access instantly without collecting a key, that is the territory of access control installation. Many properties end up with both: a restricted master key system for most doors and electronic access at the main entry or a sensitive room.

If you only need to change the locks on a few doors without building a hierarchy, lock rekeying is often the more economical route. A master key rekey, where existing cylinders are repinned into a new system, sits in between and is often the right answer when the hardware is sound but the key situation is a mess.

Why call Wilshire Lock & Key for a master key system?

Master keying is a job where experience shows. Layouts that look fine on paper can fail in the field if the person pinning the cylinders has not done it many times. Here is what we can honestly say about how we work:

  • We have been in business since 1987, so we have seen how key systems age: what gets extended, what gets abused, and what ends up as a headache years later.
  • We have a storefront at 10740 Wilshire Blvd in Westwood and mobile service vans, so we can do the design, the cutting, and the on-site work as one company, without handing you to a dispatch middleman.
  • David, the owner and lead technician, oversees the work. The layout you agree to is the one that gets built.
  • We serve 140 cities across Los Angeles and Ventura counties, and Studio City is about 11 miles from our base. Our phone line is answered 24 hours a day, every day of the year.
  • We will tell you when a master key system is not the right answer, such as when rekeying a single door or adding electronic access would serve you better.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

How do you check a locksmith before hiring one?

California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, called a BSIS LCO license. Ask any locksmith for the number, and verify it with the state before any work begins. That applies to us as it does to anyone else you call. Master key work is the kind of job where you are trusting a company with a record of every key to your property, so it is reasonable to ask who they are and how they store that information.

Also ask who keeps the bitting records, how additional keys are ordered, and what happens if you want another company to service the system later. A clear answer to those three questions tells you a lot about how the system will be handled in five years.

Frequently asked questions

What is the difference between a master key system and just rekeying my locks?

Rekeying makes a set of locks work with a new key, usually one key for all of them. A master key system gives different people different levels of access across the same doors. If everyone should open everything, rekeying is usually the more economical route. If access needs to differ by person or area, a hierarchy is the better fit.

Can you convert my existing locks into a master key system?

Often yes, if the cylinders are in good shape and are a type that can be repinned to a master key layout. Some older or worn hardware is better replaced. We look at the locks in person and tell you which ones can be reused before we start.

Is a master key system less secure?

Slightly, in a technical sense. The extra pins or wafers that let a master key work also create additional ways a lock can be manipulated. A well-designed system on good hardware is still a sound choice for most properties, and you can add higher-security cylinders on the doors where it matters most.

What happens if a master key is lost?

It depends on the level of the key. A lost change key usually means dealing with one door. A lost master or grand master is more serious, because it opens a larger group of doors. That is why we design the hierarchy so the highest-level keys are held by as few people as possible, and we explain the options for resetting the affected doors.

What is a restricted keyway, and do I need one?

A restricted keyway uses key blanks that are not sold openly, so copies need authorization instead of a quick trip to a hardware counter. You need one if uncontrolled copying is a real concern, such as with staff turnover, contractors, or rental units. It is not a requirement for every small office.

Can you set up an apartment master key system for my building near Moorpark Street?

Yes. A typical layout gives each unit its own key, gives the manager or maintenance staff a master, and groups common doors like laundry and trash rooms separately. We review the building's existing locks first and plan around any hardware that should be replaced.

Can I add doors or employees to the system later?

Yes, if the system was designed with room to grow, which is why we ask about expansion plans at the start. A tightly planned system can be extended without redoing existing doors. A poorly planned one may need partial or full rekeying.

Can a master key system work with electronic access control?

Yes, and many properties use both. A mechanical master key system can cover interior and secondary doors while an electronic system handles the main entry or a sensitive room, where you want to track and cancel access without collecting keys.

Do you help with a master key system outside normal business hours?

Our phone is answered 24 hours a day, seven days a week, at (213) 577-1366. Design work usually happens by appointment, but if a lost master key or an urgent security problem comes up after hours, call and we will tell you what can be done right away.

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Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.

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