High Security Locks in Chatsworth · 24/7 mobile
High Security Locks in Chatsworth, California
Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys across Chatsworth, California. We are a fully mobile locksmith available 24/7, and we come to your home, barn or warehouse. Call (323) 997-8867 to talk through your property and choose the right hardware.
- Mobile to your Chatsworth location
- Available 24/7
- Price quoted before we start

Chatsworth sits in the northwest corner of the San Fernando Valley, up against the Santa Susana Mountains, and its properties are unusually varied. Within a few miles you have 1950s-70s ranch tract homes with entry hardware that has been turning for decades, horsekeeping lots with barns and long gated driveways, hillside houses, and a dense band of warehouses and self-storage buildings. A standard builder-grade deadbolt protects each of these about equally poorly, and that is the gap high security locks are meant to close.
A high security lock is not simply a heavier lock. The cylinder is built to resist the common ways of defeating a lock: picking, bumping and drilling. Hardened inserts, tighter tolerances and more complex pin or sidebar designs make those attacks slow, noisy or impractical. Many systems also use restricted keyways, so a key cannot be duplicated at a hardware-store kiosk without authorization. That matters on a property where contractors, tenants, ranch hands and former employees may all have held a key at some point.
Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar is a hands-on part of the work. We are mobile only, with no storefront to visit. We bring the hardware to your door, look at the actual door, frame and gate, and recommend what fits rather than selling the most expensive option by default.
How it works in Chatsworth
- 1
Talk through the property and the risk
Call (323) 997-8867 and tell us what you are protecting: a ranch home, a tack room, a driveway gate or a warehouse. We ask who has had keys, whether you have had a break-in or attempted entry, and whether you want keys that cannot be copied freely.
- 2
On-site assessment of doors, frames and gates
A strong cylinder in a weak door is a wasted upgrade. We check the door thickness, the strike plate, the frame, and the condition of existing hardware. On older ranch homes we often find loose strikes and short screws that need attention alongside the lock.
- 3
Choose the lock and key control level
We explain the options: pick-, bump- and drill-resistant cylinders, and keyways that are patented or restricted so that duplication requires authorization. For businesses we can discuss keying several locks to a master system.
- 4
Installation and reinforcement
We install the new deadbolts, cylinders or padlocks and reinforce the strike and frame where needed. For gates, barns and roll-up doors we select hardware that tolerates dust, weather and heavy daily use.
- 5
Testing and key handoff
We test every lock and key repeatedly, confirm smooth operation, and hand over your keys along with any key-control paperwork. We also explain how to order additional keys properly.
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What affects the price
- The type and grade of lock: a high security deadbolt cylinder differs from a heavy-duty padlock or a commercial roll-up-door lock.
- The level of key control, such as a restricted keyway with authorized duplication versus a standard keyway.
- How many locks are involved and whether they are keyed alike or tied to a master key system.
- The condition of the door, frame and strike plate, and whether reinforcement is needed for the lock to perform as intended.
- Whether the work is an emergency or after-hours call versus a scheduled installation.
- Specialty mounting needs, like gate latches, barn hardware or commercial doors that require non-standard fittings.
Why Chatsworth chooses us
- Fully mobile service: we work on your actual door, gate or roll-up door instead of asking you to bring parts to a shop.
- Operating since 1987 and led on site by owner David Shar, so the person advising you has long hands-on experience.
- Available 24/7, which matters when a break-in or lost key set means you need a door secured tonight.
- We assess the door and frame first, because high security cylinders only help when the surrounding hardware can hold up.
- We cover the mix Chatsworth actually has: ranch homes, equestrian gates and barns, and commercial and industrial buildings.
- We explain trade-offs plainly and do not push the priciest lock when a more modest upgrade suits your risk.
High Security Locks across Chatsworth
In Chatsworth, ZIP codes 91311 and 91313 cover a wide spread of property types. Around Indian Hills and the Santa Susana Pass area, we see hillside homes and semi-rural lots where heat, dust and Santa Ana grit wear on exterior deadbolts. Sometimes a seized cylinder can be cleaned or re-pinned, but it is often a good moment to move up to a high security cylinder. Properties near Stoney Point Park and along Santa Susana Pass Rd often have long approaches and exposure that make solid entry hardware worthwhile.
The Chatsworth equestrian district brings its own needs. Owners with horsekeeping properties near Santa Susana Pass often need barn padlocks, tack-room locks and driveway gate hardware that resist both tampering and the elements. A tack room holds expensive saddles and equipment, and a quality drill-resistant padlock with controlled keys is a sensible upgrade over a basic hardware-store lock.
The industrial and business district around Canoga Ave, Prairie St and Lassen St has plenty of warehouses and storage buildings. After a lease change, tenants frequently need roll-up-door padlocks and commercial deadbolts rekeyed to a single master and secured with restricted keys so old keys stop working. Whether you are off Topanga Canyon Blvd, Devonshire St, Nordhoff St or the Ronald Reagan Fwy, we come to you at all hours. Call (323) 997-8867.
- Indian Hills / Santa Susana Pass area
- Chatsworth industrial & business district (Canoga/Prairie/Lassen)
- Chatsworth equestrian (horsekeeping) district
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Other Chatsworth locksmith services
Access ControlInstall keypad, card and fob access-control systems for business entrances.
Automotive LocksmithMobile auto locksmith for cars, trucks, motorcycles, RVs and fleets.
Broken Key ExtractionKey snapped in a lock or ignition? We extract the piece and cut a replacement.
Business LockoutLocked out of a store, office or commercial building? Rapid commercial entry.
Car Key ReplacementReplace lost or broken car keys — cut and programmed on site, even with no original.
Car LockoutKeys locked in the car or trunk? Fast, damage-free vehicle unlocking.
Commercial Door HardwareRepair and replace storefront, aluminum-frame and mortise door hardware.
Commercial LocksmithBusiness locksmith for offices, stores, warehouses and industrial sites.
Deadbolt InstallationAdd or replace single- and double-cylinder deadbolts for stronger doors.
Door Closer RepairRepair, adjust and replace hydraulic door closers on commercial doors.
Emergency Locksmith24/7 emergency dispatch for lockouts and urgent lock failures across Greater LA.
Gate Lock RepairRepair and install gate locks and latches, including keypad and smart gate locks.
House LockoutLocked out of a house, apartment or condo? Damage-free entry on location.
Ignition RepairRepair or replace ignition cylinders and fix keys that won't turn.
Key DuplicationCut and copy house, office, mailbox and restricted keys on location.
Key Fob ReplacementReplace and program remote key fobs and smart/proximity keys.
Lock InstallationInstall new locks on new doors or where none existed before.
Lock RekeyingRekey existing locks so old keys stop working — ideal after a move or sale.
Lock RepairFix sticking, jammed, loose or misaligned locks, deadbolts and latches.
Lock ReplacementSwap worn, damaged or outdated locks for new hardware keyed to your needs.
Mailbox Lock ReplacementReplace and rekey residential, cluster and community mailbox locks.
Master Key SystemDesign and install master-key and restricted-key systems with key control.
Panic Bar InstallationInstall and repair panic bars, exit devices and emergency-exit hardware.
Residential LocksmithFull home locksmith service — rekeys, replacements, repairs and upgrades.
Safe LocksmithOpen, repair and service home and commercial safes; change combinations.
Smart Lock InstallationInstall, set up and troubleshoot smart, keyless and keypad locks.
Transponder Key ProgrammingProgram chip/transponder keys to your vehicle's immobilizer.
See all of our Chatsworth services, or our citywide high security locks page.
High Security Locks in Chatsworth — FAQs
What makes a lock high security?
Will a high security lock work on my older Chatsworth ranch home?
Can you secure my barn, tack room and driveway gate?
Can you rekey my warehouse to one master key?
My deadbolt is stuck from dust and heat. Do I need a new one?
Do you offer 24/7 service in Chatsworth?
Can high security keys be copied?
Do I have to visit a shop?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.