Commercial Locksmith in Walnut · 24/7 mobile
Commercial Locksmith in Walnut, California
Crenshaw Lock Company provides 24/7 mobile commercial locksmith service in Walnut, California, for offices, stores, warehouses and industrial sites. We come to your business with the tools to rekey, repair, install and secure. Call (323) 997-8867 any hour, any day.
- Mobile to your Walnut location
- Available 24/7
- Price quoted before we start

Walnut is a quieter business city than many of its neighbors, but its commercial properties still have plenty of security needs. Small offices and retail suites line Valley Blvd, Lemon Ave and Nogales St, light industrial and warehouse space sits near the SR-60 and SR-57 corridors, and institutional buildings anchor the north near Mt. San Antonio College. Each of these has different doors, different hardware and different risks, and a locksmith who treats them all alike will miss something.
Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are fully mobile, so there is no shop to visit. Our work comes to your door, whether that is a glass storefront, a steel warehouse door, a suite in a professional building or a gate on a service yard.
Commercial work covers more than lockouts. It includes rekeying after an employee leaves, repairing a failing door closer or panic bar, installing keypad or electronic access, setting up keyed-alike systems so staff carry fewer keys, and responding after a break-in attempt. We are available around the clock, so a problem at closing time or in the middle of the night is not left until morning.
How it works in Walnut
- 1
Call and describe the situation
Phone (323) 997-8867 and tell us what kind of business it is, what door or lock is involved, and whether you are locked out, dealing with damage or planning an upgrade. This helps us bring the right hardware.
- 2
Confirm who is authorized
Before opening or changing anything, we ask for reasonable confirmation that you are the owner, manager or an authorized tenant. This protects your business and your neighbors.
- 3
Assess the door and hardware
We look at the lock grade, the door and frame, the closer, the strike and any exit devices. Often the problem is alignment or wear rather than the lock itself, and we say so.
- 4
Open, repair, rekey or install
We choose the least destructive fix first. That may mean non-destructive entry, rekeying cylinders, repairing a panic bar, or fitting new commercial-grade locks or keypad access.
- 5
Test and hand over keys
We test every lock and door several times, cut and label keys, and explain any key control or access code practices so your staff know exactly how the system works.
- 6
Follow-up recommendations
If we notice weak points such as a worn frame, an exposed hinge or an old master key system, we point them out plainly and let you decide what is worth doing.
Need commercial locksmith in Walnut?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
What affects the price
- Whether the job is an emergency lockout, a repair or a planned installation, and whether it happens during business hours or overnight.
- The type and grade of hardware involved, such as standard cylinders, mortise locks, panic bars or electronic access.
- The number of doors, locks and keys, especially for rekeying or keyed-alike systems across a whole suite or building.
- Door and frame condition, since damage from a break-in or years of use can add repair work.
- Whether special parts must be sourced for older or specialty commercial hardware.
- Location and access, such as a secured yard, upper floor or gated industrial site.
Why Walnut chooses us
- Fully mobile service, so the work happens at your business and not at a counter.
- In business since 1987, with experience across offices, retail, warehouses and industrial doors.
- Owner-led operation under David Shar, so accountability does not get lost between dispatcher and technician.
- Available 24/7, which matters when a break-in or lockout happens after hours.
- We recommend the simplest fix first and tell you honestly when a repair is enough.
- Comfortable with both traditional keyed systems and modern keypad or electronic access.
Commercial Locksmith across Walnut
Walnut's commercial picture is spread out. Around the Mt. San Antonio College area and Grand Ave, you find institutional buildings, nearby shops and offices that deal with steady daytime traffic and after-hours quiet. Along Valley Blvd, Lemon Ave and Amar Rd, small retail and service businesses rely on storefront locks and back doors that see heavy daily use. Businesses with a ZIP code of 91789 or 91788 can reach us the same way, by calling (323) 997-8867.
The city also blends commercial and residential life. Neighborhoods such as Snow Creek, a gated community, and Walnut Heights sit close to the business areas, and some owners run home-based offices or manage properties with gate and keypad access. We understand electronic access, gated entries and the hardware that goes with them, and we can help when a commercial gate or keypad fails.
Because Walnut sits between the San Jose Hills and Puente Hills, with SR-60 and SR-57 close by, we reach businesses across the city and nearby areas without a storefront detour. Whether you manage a small office near Suzanne Park or a warehouse space off Pierre Rd, we bring the tools to you at any hour.
- Snow Creek (gated community)
- Walnut Heights
- Mt. San Antonio College area
Locked out or need a locksmith now?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
Other Walnut 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.
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.
High Security LocksInstall pick-, bump- and drill-resistant high-security locks and keys.
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 Walnut services, or our citywide commercial locksmith page.
Commercial Locksmith in Walnut — FAQs
Do you offer 24/7 commercial locksmith service in Walnut?
Can you rekey my business after an employee leaves?
Do you work on panic bars and exit devices?
Can you set up keypad or electronic access for an office?
Do you have a shop I can visit?
What can affect the cost of commercial lock work?
Can you help after a break-in attempt?
Do you serve businesses near Mt. San Antonio College and Grand Ave?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.