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Crenshaw Lock

Master Key System in Hidden Hills · 24/7 mobile

Master Key System in Hidden Hills, California

Crenshaw Lock Company designs and installs master key and restricted-key systems in Hidden Hills, California, for estates, guest houses, barns and gates. We are a fully mobile locksmith available 24/7, and we come to your property. Call (323) 997-8867 to plan a system that fits.

  • Mobile to your Hidden Hills location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
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A Hidden Hills property is rarely just one door. A typical estate has a main house, a guest house, a pool house or office, driveway and pedestrian gates, a garage, and often a barn, stable and tack room. Over the years these accumulate a ring of keys that nobody can account for. A master key system replaces that pile with a planned hierarchy: you carry one key that opens everything, while others carry only what they need.

This matters here because so many people come and go. Household staff, property managers, trainers, grooms, gardeners, pool service, contractors and event vendors all need access to some areas but not others. A master key system lets a groundskeeper open the equipment shed and gates without being able to enter the main residence, and lets a trainer reach the tack room and paddock without holding a house key. When someone leaves, you can deal with just that one level of access instead of rekeying the entire property.

We have been serving Greater Los Angeles and Ventura County since 1987, and owner David Shar leads our work. We are mobile only, with no storefront, so every consultation, install and key cut happens on your property, on a schedule that respects your household and the gate procedures in Hidden Hills.

How it works in Hidden Hills

  1. 1

    Walk the property and list every opening

    We start on site, going through the main house, guest house, garages, gates, barns, tack rooms, sheds and any padlocked equipment. We note what hardware exists, what is corroded, what is worn and what can be reused.

  2. 2

    Map who needs access to what

    We sit down with you to sort people into levels: owner, family, house manager, staff, trainers, vendors. From that we draw up a key hierarchy, with a top master key, sub-masters for zones such as the house or the barn, and individual change keys.

  3. 3

    Choose hardware and key control level

    Barn and paddock locks need weather-resistant, heavy-duty hardware, while interior doors may suit a different grade. We discuss restricted keyways, where keys cannot be duplicated at a hardware store without authorization, and whether that level of key control suits you.

  4. 4

    Install and pin the locks

    We install or rekey cylinders on site so they all work within the planned hierarchy. Smart locks and gate hardware are kept in the plan, with mechanical key backup where it makes sense.

  5. 5

    Cut, test and label the keys

    Every key is tested on every lock it should open, and on those it should not. We give you a clear record of the key schedule so you know who holds what.

  6. 6

    Plan for staff changes and expansion

    A good system can grow. We explain how to add a new building or replace one lost key without starting over, and how to handle turnover cleanly.

Need master key system in Hidden Hills?

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, gates and padlocks that need to be included in the system.
  • The grade and type of hardware, such as weather-resistant barn padlocks versus interior cylinders.
  • Whether you want a restricted keyway with duplication control, or a standard keyway system.
  • How many levels the hierarchy needs, including sub-masters for house, guest house and barn zones.
  • The number of keys to be cut and how many people will hold each level.
  • Whether existing locks can be rekeyed or must be replaced because of corrosion, age or damage.

Why Hidden Hills chooses us

  • Fully mobile service: we do the survey, installation and testing at your property, with no shop visit required.
  • Experience with both residential estates and working horse properties, including corroded barn hardware and paddock gate locks.
  • We design around your actual household, including staff, trainers and vendors, instead of selling a one-size-fits-all kit.
  • We can keep mechanical key backup in place alongside smart and biometric locks so a dead battery does not lock you out.
  • Available 24/7, so urgent rekeys after a staff change or a lost key do not have to wait for business hours.
  • In business since 1987, with David Shar overseeing the work.

Master Key System across Hidden Hills

Hidden Hills is a guard-gated city, and that shapes how we work. Whether your home is in the Long Valley Road area, the Spring Valley Road area or around Round Meadow, we coordinate arrival through the manned Long Valley Road or Spring Valley Road gate so your property is expecting us. Our ZIP code for this work is 91302, and we serve it as a mobile team coming to you from outside the gates.

The housing stock is a mix of original 1950s and 60s ranch homes and newer custom estates, usually on lots of an acre or more. Older ranch homes often have a patchwork of mismatched locks added over decades, which is a good candidate for consolidation under one master system. Newer homes tend to have smart locks, driveway gates, safes and access control, which we plan around so mechanical keys and electronic access work together.

Many properties also have barns, stables and tack rooms along the private equestrian trail network, where weather, dust and moisture wear out padlocks quickly. We often see corroded barn padlocks and tired paddock gate hardware, and a master key plan is a chance to replace them with heavy-duty parts. When household staff turn over, we can rekey the main house, guest house and gates so everything works from one key. Our phone number is (323) 997-8867.

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 Hidden Hills locksmith services

See all of our Hidden Hills services, or our citywide master key system page.

Master Key System in Hidden Hills — FAQs

What is a master key system?
It is a planned set of locks and keys where each lock has its own key, and higher-level keys can open groups of locks. One master key can open every door, while a staff key might open only the barn or guest house.
Can one key open my house, guest house, gates and barn?
Yes, if the hardware is compatible or can be replaced to fit the system. We survey the property first and tell you what can be reused. Call (323) 997-8867 to schedule a walkthrough.
What is a restricted keyway and do I need one?
A restricted keyway uses key blanks that are not freely available, so duplicates need authorization. It suits properties with a lot of staff or vendors and where you want tighter control over who can copy keys. It is optional.
Do you work with smart locks and driveway gates?
Yes. We plan the mechanical system around smart and biometric locks so you keep a reliable key override, and we can include gate hardware in the key plan where it is compatible.
Can you handle horse property locks like barn padlocks and tack rooms?
Yes. We replace corroded barn padlocks and tack-room and paddock gate locks with heavy-duty, weather-resistant hardware and can integrate them into the master key system.
What if a staff member leaves and I need everything rekeyed?
We can rekey the main house, guest house and gates, and in a master system we can often limit changes to the affected level. Call (323) 997-8867 any time, since we are available 24/7.
Do I need to visit a shop?
No. We are fully mobile with no storefront, so surveys, installation, key cutting and testing all happen at your property.
How do you get in through the Hidden Hills gates?
We coordinate with you so your name is given to the manned Long Valley Road or Spring Valley Road gate ahead of time. Let us know which entrance your property uses when you call.
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