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Wilshire Lock & Key

24/7 locksmith · Beverly Hills, CA

Master Key System Installation in Beverly Hills, CA

A master key system lets one key open many doors while each person's key opens only theirs. Wilshire Lock & Key designs, pins and installs master key systems and restricted keyways in Beverly Hills, with the phone answered 24/7 at (213) 577-1366 and David overseeing the key plan.

  • 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 who needs one in Beverly Hills?

A master key system is a planned hierarchy of keys and locks. Every door still has its own key, usually called a change key, that opens that door and nothing else. Above it sits a master key that opens a defined group of doors. In larger buildings there is also a grand master that opens several groups. The hierarchy is built into the lock cylinders themselves, so this is a design job, not a pile of key copies.

The people who call us about this are usually property managers with a run of units, owners of office suites, retail operators with stockrooms and back offices, and estate owners who need household staff in some rooms but not others. You may have searched for a commercial master key system, a business master key system or an apartment master key system. Those are the same idea at different scales: decide who can open what, then build the locks to match.

One honest note up front. Not every property needs a master key system. If you have a few doors and two or three people, a clean rekey and a tidy key log will probably serve you better, and we will say so. A hierarchy earns its place when the number of doors and the number of people make carrying a different key for each door unworkable.

Why do keys get out of control in a building?

It rarely happens all at once. A manager has a spare cut at a kiosk so a new hire can start Monday. A contractor keeps a key after the job ends. A former employee never hands theirs back, and nobody can say for certain which doors it opens. Over a few years the building has keys in circulation that nobody can account for, and the only way to feel safe is to change every lock.

The opposite problem is just as common. Someone solves the mess with one key that opens everything and hands it to every trusted person. That is convenient until the key is lost, because one missing key then exposes the entire property.

A proper key control system sits between those two extremes. It lets you answer the questions that matter: who holds a key, what does it open, and what happens to access if that person leaves. An employee key control system is built on those answers. The hardware has to support them, which is where the cylinder design, the keyway and the key records come in.

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How do we design and install a master key system?

We start with the paperwork before touching a lock. The quality of a master key system is mostly decided at the planning stage, and mistakes there are expensive to undo later. Here is how a typical job goes.

  1. Walk the property with you and list every door, the type of lock on it, and who needs to get through it. This includes gates, side doors, storage rooms, mechanical rooms and the doors people forget.
  2. Draw the hierarchy on paper. Decide which people get a change key only, which get a master for a group of doors, and whether a grand master is needed. Decide which doors stay outside the master entirely, such as a cash office, a records room or an owner's private suite.
  3. Choose the keyway. A standard keyway is the more economical route and is fine for many properties. A restricted keyway controls who can obtain blanks and copies, and is worth considering where key control matters more than convenience.
  4. Inspect the hardware. Some cylinders can be pinned into the system. Worn, damaged or incompatible ones need to be replaced, and we tell you which are which before work starts.
  5. Pin or replace the cylinders to match the plan, then test every key on every door. We check that each key opens what it should and, just as important, does not open what it should not.
  6. Cut, label and hand over the keys, along with a written record of the key hierarchy. Keep that record somewhere safe, because it is what makes adding doors or replacing keys later possible.
  7. Agree on the rules going forward: who is allowed to authorize new keys, how returned keys are handled, and how new doors get added without starting over.

What are restricted keyways and duplicate-protected keys?

Most keys in the country are cut on open blanks that any hardware store or kiosk can copy in a minute. A restricted keyway changes that. The key profile is controlled, so blanks are sold only through authorized channels. Walking into a store with one of these keys and asking for a copy generally does not work.

Duplicate-protected keys add a paper layer. The system is registered to an account holder, and new keys are cut only with an authorization from that person or company. That is the part that matters for an employee key control system. A staff member cannot quietly make a copy, and a spare cannot appear without the account holder knowing.

Here is what we want you to understand before you pay for one. A restricted system controls copying. It does not make a lock unpickable or a door unbreakable, and it will not fix a weak door frame or a poor cylinder. If you need the lock itself to resist attack, look at our high-security locks work, which often goes hand in hand with a restricted keyway. There is also a practical cost: new keys take longer to order, and you need to be reachable when someone needs one. For everyday keys that do not need that control, ordinary key duplication still applies.

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Master key system, rekey or access control: which one fits?

These three solve related problems, and the right answer depends on your building. A master key rekey, where existing cylinders are rekeyed into a hierarchy, is different from simply rekeying a set of locks to a single new key. If all you need is for one set of doors to work with one key and for old keys to stop working, a straightforward lock rekey is the simpler job. A master key system is for when different people need different levels of access.

Electronic access control is the third option. With keycards or codes you can cancel one person's access in seconds and see a record of who entered. It costs more in equipment and has its own maintenance, so it makes the most sense on main entrances and sensitive areas. Our access control installation page covers that side.

Many properties end up with a mix: a mechanical master key system on interior doors and suites, electronic control on the perimeter. We will tell you plainly where a mechanical system is enough.

There is a tradeoff you should know about. A master key system introduces additional ways to open each lock, which makes those locks somewhat more exposed to key-based attacks than a single-key lock. Good design, quality cylinders and limiting how many levels you build reduce that, and a restricted keyway helps. It is a reason to keep the hierarchy as simple as your building allows, and not to build every level you could.

What affects the cost of a master key system in Beverly Hills?

We do not give a flat figure over the phone, because two buildings that look alike can need very different work. Here is what actually moves the cost.

The main factors:

  • The number of doors and cylinders in the system, including gates and secondary entrances.
  • Whether your existing cylinders can be pinned into the hierarchy. Reusing sound hardware is usually the more economical route, while worn or mismatched cylinders need replacing.
  • How many levels the hierarchy has: change keys only, a single master, or a grand master across several groups.
  • Standard versus restricted keyway, and whether the keys are duplicate-protected with an authorization process.
  • How many keys have to be cut and for how many people.
  • The condition of the doors and hardware. A cylinder cannot work properly in a sagging door or a damaged lock body.
  • Site complexity, such as several buildings, units on different floors, or gates tied into other systems.
  • Whether the work happens during business hours or after hours, and how quickly you need the system running.
  • Planning for later expansion, since leaving room to add doors saves money down the road.

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How do master key systems fit Beverly Hills buildings?

Beverly Hills is not one kind of property, and the right system varies by area. We serve addresses across ZIP codes 90210, 90211 and 90212, and the jobs divide into a few types.

South of Wilshire in South Beverly Hills, the city is mostly duplexes, condominiums and apartment buildings from the 1930s through the 1970s. For an owner with several units, an apartment master key system usually means each unit key opens only that unit, while a separate building key covers shared doors such as laundry, storage and utility rooms. Unit-level changeovers become cleaner too, since only that unit needs attention when a tenant leaves. If you manage rentals, our locksmith for landlords page covers the day-to-day side of that work.

Along Rodeo Drive and in the Golden Triangle business district, boutique storefronts have a different need. Sales staff open the front, the manager reaches the stockroom and back office, and the owner holds a master. A restricted keyway makes sense there because it stops a seasonal employee from copying a key at a kiosk. If a storefront door itself is giving trouble, that is a separate job under storefront lock repair, and we can handle both at the same visit.

In The Flats, the situation we see described most is turnover. A household changes staff or vendors, and the owner wants a family master, a house-manager key with limited reach, and no unaccounted copies. A restricted, duplicate-protected system fits that well, and it builds on high-security rekeying instead of replacing it.

Trousdale Estates and the larger estates north of Santa Monica Boulevard often pair the house with a driveway gate, intercom and monitored access. A key hierarchy can organize the mechanical side: the main house, guest quarters, service doors and pool or garden entrances. Gate hardware is its own subject, so we point you to gate lock repair for that.

In the 1920s Spanish Colonial Revival homes, many front and side doors use mortise lock bodies. Mortise cylinders can often be pinned into a system, but we check the lock body's condition first. A worn mortise lock needs repair before it gets new keys, or you are building on a weak base.

On climate: Beverly Hills is inland, with warm, dry summers, and hillside and canyon exposures such as the Coldwater Canyon area fade and dry exterior door finishes. The effect on hardware is modest, so it is not a major factor in planning a key system. Our storefront is at 10740 Wilshire Blvd in Westwood, about four miles away, and we also work from mobile vans.

Locked out or need a locksmith now?

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

Call (213) 577-1366

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

Key systems reward experience, because the mistakes only show up years later. We have been in business since 1987 and serve 140 cities across Los Angeles and Ventura counties, so we have seen how buildings change and how a key plan holds up.

Here is what you actually get:

  • One company from start to finish. The people who plan your system are the people who install it, with no dispatch middlemen passing your job along.
  • A real storefront at 10740 Wilshire Blvd plus mobile vans, so we can bring the work to your property and also have a shop behind it.
  • David, the owner and lead technician, oversees the key plan, so the design gets a senior look before cylinders are changed.
  • A written record of your hierarchy, so you are not dependent on us to remember what you own.
  • Straight advice, including when a simpler rekey is the better answer.
  • Phone answered 24 hours a day, every day of the year, at (213) 577-1366.

What should you ask any locksmith before hiring?

California requires locksmith companies to hold a license from the Bureau of Security and Investigative Services, known as BSIS, and that license is called an LCO. Ask any locksmith for their LCO number, and you can check it with the state. This matters more for a master key system than for a one-off lockout, because the person you hire will know how every door in your building opens.

Other good questions: Who will do the work, the company or a subcontractor? Will you receive a written hierarchy and key schedule? Who holds the records, and can another locksmith service the system later? How are new keys authorized? A reputable company answers all of these without hesitation.

If you are unsure where to start, call us at (213) 577-1366 and describe the property. We will tell you whether a master key system, a rekey or an electronic approach fits, and we will say so even if the answer is the simpler one. For related commercial work, see our commercial locksmith services.

Frequently asked questions

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

Often yes. If your current cylinders are in good shape and are a type that can be repinned into a hierarchy, we can rekey them into the system, which is usually the more economical route. Cylinders that are worn, damaged or incompatible need to be replaced. We check each one before giving you a plan.

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

Rekeying changes the inside of a lock so a new key works and the old one does not. A master key system is a planned hierarchy where different keys open different groups of doors. If everyone needs the same access, rekeying is simpler. If access levels differ, a hierarchy is the better fit.

Is a master key system less secure than keyed-alike or single-key locks?

A master key system adds extra ways to operate each lock, so it is slightly more exposed to key-based attacks than a single-key lock. Good cylinders, a simple hierarchy and a restricted keyway reduce that exposure. For many buildings, the control it gives over who can open what is worth the tradeoff.

Can an apartment building in Beverly Hills use one master key for all units?

It can, but think about who actually holds that key. Many owners prefer a system where unit keys open only their unit and a separate building key covers shared areas, while a master for the owner or manager sits at the top. We help you decide how many levels you really need.

What happens if a master key is lost?

It depends on how the system is built and which master it is. A lost master means everyone who might find it could open the doors it covers, so the affected cylinders usually need to be rekeyed or the system re-planned. This is why we keep the hierarchy simple and the records clear.

What is a duplicate-protected key, and can I still copy it at a hardware store?

A duplicate-protected key is cut on a controlled blank, and copies are made only with authorization from the account holder. Hardware stores and kiosks generally cannot copy it. That is the point, but it also means you need to be reachable when someone needs a new key.

Can doors be added to the system later?

Usually yes, if the original hierarchy and key records were kept and the system was planned with room to grow. This is why we hand you written records. Adding a door to a restricted system also requires the authorization process, so planning ahead saves time.

Do I need a restricted keyway for my business?

Not always. A standard keyway is a perfectly reasonable choice for many offices and shops. A restricted keyway makes sense when staff turn over often, when copies could expose valuable areas, or when you need to track every key that exists. We tell you honestly if it would be more than you need.

Can I call at night or on weekends to talk about a master key system?

Yes. Our phone is answered 24 hours a day, 7 days a week, year-round, at (213) 577-1366. Planning work like this is normally scheduled, but if you have lost a master key or an employee left with keys, call right away and we will help you decide what to do first.

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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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