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Wilshire Lock & Key

24/7 locksmith · Woodland Hills, CA

Master Key System in Woodland Hills, CA

Wilshire Lock & Key designs and installs master key systems in Woodland Hills: key hierarchies, restricted keyways and duplicate-protected keys for offices, apartment buildings and teams. We plan the system, rekey the cylinders and document the keying. Call (213) 577-1366, answered 24 hours a day, 7 days a week.

  • 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 Woodland Hills?

A master key system is a plan for who can open what. Every lock gets its own change key, and one or more higher-level keys open defined groups of those locks. A tenant, a department or an employee carries a key that opens only their own door. A manager carries a key that opens a set of doors. The owner or property manager holds the top key that opens everything.

That structure has names. A change key opens one lock. A master key opens a group. A grand master opens several groups, and in a large complex there can be a level above that. We draw the hierarchy on paper before anyone touches a cylinder, because the key levels decide how each lock is pinned, how many keys people end up carrying, and how easily the system can grow later.

In Woodland Hills the properties that benefit most are the ones with many doors and many hands: multi-suite offices, apartment communities, HOA-managed buildings, retail units with back-of-house rooms, and larger residential properties with outbuildings and gates. If you are carrying a ring of unrelated keys, or you cannot say who holds a copy of the storeroom key, that is the situation a commercial master key system is built to fix.

Why do keys get out of control in the first place?

Almost nobody sets out to build a mess. Keys sprawl through ordinary growth. A suite gets added. A tenant moves out and takes a key. A contractor borrows the mechanical room key and it never comes back. Locks get bought from different suppliers over the years, each with its own keyway that any key shop can copy. Eventually nobody can answer the simple question of who has what.

The real cost shows up when someone leaves. If you cannot say who holds a copy, the only safe move is to rekey every door that person could open. When every lock is on a different key, that means a lot of separate work. A planned system changes the math. You can rekey one level, or reissue one sub-master, without disturbing the rest of the building.

  • Staff carry rings of look-alike keys, and doors get opened by trial and error.
  • Former employees or tenants may still hold keys, and there is no list.
  • Keys are stamped Do Not Duplicate, but any shop with the right blank can still copy them. The stamp is a request, not a control.
  • A manager has to carry every key, or the owner gets called to open ordinary doors.
  • Past rekeys were done door by door, so the building is a patchwork of keyways and brands.

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How do we design and install a master key system?

The work is mostly planning, and the planning is where a system succeeds or fails. Here is how a job runs from first call to handover.

  1. Walk the property and list every opening: suite doors, storage and utility rooms, mailrooms, gates, cabinets and padlocks. We note the hardware already there and its condition.
  2. Talk through who needs access to what. Roles, shifts, vendors, cleaners, property managers and emergency access all matter here. This conversation matters more than any piece of hardware, and David reviews the access plan before we commit to it.
  3. Draw the hierarchy: change keys, masters, and a grand master if the property really needs one. We keep it as simple as your security needs allow, because every extra level adds complexity and a little more risk.
  4. Choose the keyway and cylinders. Existing cylinders that are in good shape and accept the scheme can often be re-pinned. Where cylinders are worn, mismatched or unsuitable, we replace them with ones that fit the system, and we tell you plainly which is which.
  5. Build the keying chart, the bitting list that sets the cut depths for every key. We check it for conflicts so a change key from one lock cannot open its neighbor by accident.
  6. Pin and install each cylinder, cut the keys, and test every key in every lock it should open and every lock it should not.
  7. Hand over labeled keys, the keying chart, a simple issue-and-return log format, and notes on how to add doors later without redoing the system.

What do restricted keyways and duplicate-protected keys actually protect?

A standard keyway is common. Blanks for it sit on the shelves of nearly every key shop. A restricted keyway uses a key profile whose blanks are not sold over the counter. They go through authorized dealers, and in many programs only with the approval of the registered account holder. That is what makes a key duplicate-protected in practice: copies have to come through an authorization step instead of a quick stop at a kiosk.

It helps to be honest about the limits. A restricted key system controls copying. It does not make a lock pick-proof, and a key that is lost is still lost. How much legal protection a particular keyway carries depends on the specific product and its patent status, so we confirm that with the actual product in hand instead of promising it in general. If you need hardware that also resists drilling and picking, that is a separate conversation about high-security locks. Once the system is in, extra keys come through key duplication against your authorization list, so copies come from one controlled place.

There is also a trade-off with master keying itself. Master pinning adds extra shear lines inside each cylinder, which in theory makes a master-keyed lock somewhat easier for a skilled attacker to defeat than the same lock keyed alone. Good design limits the number of levels, spaces the cuts sensibly and uses a restricted keyway to offset that. We would rather explain it up front than let you find out later. And for a single home with one set of doors, a master system is usually the wrong tool. A plain rekey does the job.

Locked out or need a locksmith now?

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

Call (213) 577-1366

How much does a master key system cost in Woodland Hills?

We do not quote numbers on a web page, because a master key system is priced from the job in front of us, not from a menu. What we can do is tell you what moves the cost up or down, so you know what you are paying for.

The lighter-cost route is usually to keep good existing cylinders and re-pin them into the new scheme, rather than replacing hardware that still works. Phasing the work building by building, or floor by floor, can also spread the expense. A real quote comes after a walkthrough, because door count and hardware condition are what we cannot see from a phone call.

  • The number of cylinders and doors in the system.
  • How many key levels the hierarchy needs.
  • Whether existing cylinders can be re-pinned or must be replaced.
  • Standard keyway versus a restricted keyway with controlled blanks.
  • How many keys are cut, and whether they are stamped and tracked.
  • Door condition. Doors that bind or have drifting bolts need adjustment before keys will turn smoothly.
  • Spare capacity you want built in for future suites or units.
  • Whether the work needs to happen after hours around a business's schedule.

Where do master key systems fit in Woodland Hills: Warner Center, Ventura Boulevard and the hillsides?

Woodland Hills is not one kind of property, and the right system depends on which part of it you are in. Our service area here covers both ZIP codes, 91364 and 91367, and the work is different from one corner to the next.

Warner Center is where the area's high-density stock concentrates: condo towers, large apartment complexes and HOA-managed buildings that use controlled-entry systems. In those buildings the master key question is about the mechanical layer under the electronics. Unit doors, storage and trash rooms, mechanical rooms, mail areas and service doors all still run on keys, and a clear hierarchy lets the building engineer, the property manager and an emergency override each hold the right level. Where the front entrance runs on credentials, the key system covers everything the card reader does not. If you are weighing electronic credentials for some of those doors, our access control installation page covers that side.

Along the Ventura Boulevard corridor, the common job is the office suite. A floor of suites where each tenant wants a private key, the landlord needs building access, and cleaning or maintenance needs limited access. A typical fit is a change key per suite, a building master for the property manager and a restricted keyway so tenants cannot copy keys freely. When a tenant leaves, you rekey that one suite instead of the whole floor. Retail operators around The Village at Westfield Topanga and along the boulevard have a similar need, with managers, opening and closing staff, stockrooms and back-of-house doors that should not all share one key.

South of the Boulevard, the hillside streets carry mid-century and custom view homes, many behind driveway gates. In Walnut Acres, the large-lot, semi-rural area north of the Boulevard, a property can have a main house, a guest house, a workshop and a gate. A small master scheme can let the owner carry one key for the house and outbuildings while a housekeeper or contractor carries a key that opens only the gate and one door. Where that gate has a mechanical lock that needs service, see gate lock repair.

Heat is a local factor too. Woodland Hills regularly records some of the hottest summer temperatures in Los Angeles, and prolonged heat bakes south- and west-facing doors. Wood doors expand and warp, weatherstripping dries out and deadbolt alignment drifts. A master-keyed cylinder suffers from that the same way any lock does: a bolt dragging in a misaligned strike makes a key feel stiff, and it gets worse when many doors share one system. So we check door and strike alignment during installation and tell you which doors need adjusting before keys go out. Woodland Hills is about 18 miles from our Westwood storefront, and our mobile vans come to you, so the walkthrough happens on your property where we can see the doors.

Locked out or need a locksmith now?

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

Call (213) 577-1366

Can a master key system work for apartments and employee key control?

Yes, and these are two of the most common reasons people call. An apartment master key system usually has a change key for each unit, a sub-master for each building or floor, and a master for the property manager, with common areas such as laundry, mail and mechanical rooms handled at the right level. Who is allowed to enter and when is your policy to set. The system only decides what each key can physically open. If you manage rental property, our locksmith for landlords page covers the wider picture of turnover and maintenance access.

An employee key control system is about accountability. Keys are issued by name, logged when they go out and when they come back, and cut on a restricted blank so they cannot be duplicated casually. When someone leaves and does not return a key, you rekey the level that key reached instead of the whole property. That is far easier than starting from scratch, and a plain lock rekey at a single door stays a quick job once the structure is in place.

The paperwork is not busywork. The keying chart and issue log are what make the system work after we leave. We hand them to you, and how you store them is a security decision. We suggest keeping them somewhere separate from the keys they describe.

What happens when someone is locked out or a master key goes missing?

Every system has failure modes, and you should know them before you build one. A lost change key is a small problem. A lost sub-master is bigger, because it opens a group of doors. A lost grand master is the serious case, and it can mean rekeying much of the system. That is why we recommend limiting how many people hold top-level keys and keeping a spare in a secure place.

If you are locked out of a suite or business and the key plan is not helping, our business lockout page explains how we handle that. The phone is answered around the clock at (213) 577-1366. We will also tell you whether the right fix for a missing key is rekeying one level, replacing a cylinder, or something simpler.

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

We have been in business since 1987, and key systems are the kind of work where that history matters. A system you install now has to still make sense in ten years, after staff changes, tenant turnover and new suites. We work from a storefront at 10740 Wilshire Blvd in Westwood and send mobile service vans, so planning, cutting and installing stay inside one company. There is no dispatch middleman between you and the person doing the work. David, the owner and lead technician, oversees the keying plans, and you can expect a straight answer when a simpler setup would serve you better than a bigger one.

California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith company for its license number before hiring it. That applies to us as well. A company that cannot show it should not be designing your key hierarchy.

We serve 140 cities across Los Angeles and Ventura counties, and Woodland Hills is one of them. If your project is bigger than keys, such as hardware, closers or panic devices across a building, see our commercial locksmith page. When you are ready to talk through a walkthrough, call (213) 577-1366 any hour of the day.

Frequently asked questions

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

Rekeying makes a lock work with a new key. A master key system decides how many keys work in how many locks, in layers. Rekeying a few doors to one shared key is simple. A master system lets each door keep its own key while one higher key opens a group. If you have one set of doors, rekeying is usually the better fit.

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

Often, yes. Cylinders in good condition that accept a master scheme can be re-pinned instead of replaced, and that is usually the more economical route. Worn or mismatched cylinders may need replacing. We look at the hardware during a walkthrough and tell you which ones can be saved.

How many key levels does a Woodland Hills office or building need?

Fewer than most people expect. A multi-suite office may only need a change key per suite and one building master. A large complex with many buildings might add sub-masters. We recommend the smallest hierarchy that matches how people actually use the space, because extra levels add complexity and some risk.

Is a master key system less secure than individually keyed locks?

In theory, slightly. Master pinning adds shear lines inside each cylinder, which gives a skilled attacker a little more to work with. Careful design, limited levels and a restricted keyway offset that, and for properties with many doors the control you gain usually outweighs the small trade-off. We explain the exact trade-off for your layout before you decide.

Can an employee copy a restricted key at a hardware store?

That is what a restricted keyway is meant to prevent. Blanks for the profile are not sold over the counter, and copies are made through authorized channels with the account holder's approval. It controls copying but does not make duplication impossible in every case, so we pair it with an issue log.

What if we lose a master key?

It depends on the level. A lost change key usually means rekeying one lock. A lost sub-master means rekeying the group it opened. A lost grand master can mean rekeying much of the system. That is why we suggest limiting top-level keys and keeping a secure spare, and we can talk you through the options at any hour.

Can doors be added to the system later?

Yes, if the system was designed with room to grow. We build spare capacity into the keying chart when you expect new suites or units, and we hand over notes on how additions should be keyed. Adding a door to a well-documented system is much simpler than adding one to a patchwork.

Can you work on a condo tower or HOA building in Warner Center?

We handle the mechanical key side: unit doors, service rooms and shared areas. If the building also uses an electronic controlled-entry system, we tell you where the mechanical work ends and where the other vendor's work begins. Approvals from a board or property manager are usually needed, and we can help you prepare the plan.

How long does installing a master key system take?

It depends on the number of doors, the condition of the hardware and whether the work must happen around business hours. Planning and the keying chart come first, then the pinning and installation. We give you a realistic schedule after the walkthrough, not before.

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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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