Automotive Locksmith in Walnut · 24/7 mobile
Automotive Locksmith in Walnut, California
Crenshaw Lock Company provides 24/7 mobile automotive locksmith service in Walnut, California, including car lockouts, replacement keys, transponder and fob programming, and ignition repair. We come to your vehicle, wherever it is parked. Call (323) 997-8867 any hour to talk with a real locksmith about your situation.
- Mobile to your Walnut location
- Available 24/7
- Price quoted before we start

A car problem rarely picks a convenient moment. In Walnut, it might be a lockout in a parking lot off Grand Ave after an evening class, a lost key on the way home along the Pomona Freeway, or a fob that suddenly stops working in your own driveway. Crenshaw Lock Company is fully mobile, so we bring the tools and key-cutting equipment to you instead of asking you to tow a vehicle anywhere.
We have served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the company on a simple idea: explain what is happening, explain the options, and do the work carefully so your vehicle is not damaged. Automotive work has changed a great deal over those decades. Older cars may use a simple mechanical key, while newer ones rely on transponder chips, remote fobs, and push-button start systems that need to be programmed correctly.
Our automotive service covers cars, trucks, motorcycles, RVs, and fleet vehicles. That matters in a city like Walnut, where households often have several vehicles, a truck or trailer for property work, and sometimes an RV parked on a larger lot. Whether you have one stranded vehicle or a handful that belong to a business, we can help you get moving again. There is no storefront to visit; every job is handled on-site.
How it works in Walnut
- 1
You call and describe the situation
Call (323) 997-8867 and tell us the vehicle make, model, and year, where it is located, and what happened. Whether you are locked out, missing every key, or dealing with a worn ignition, those details let us plan the right approach and bring the right equipment.
- 2
We confirm who you are and who owns the vehicle
Before we open a door or make a key, we ask for reasonable proof that the vehicle is yours, such as ID and registration or other documentation. It is a short step, and it protects you and every other driver from someone trying to take a car that is not theirs.
- 3
We choose the least invasive method
For lockouts, we use professional entry tools designed to avoid scratching paint, bending door frames, or damaging weatherstripping. For key work, we determine whether your vehicle uses a basic cut key, a transponder key, a remote head key, or a smart key, and plan accordingly.
- 4
We cut and program the key on-site
If you need a replacement or spare, we cut the key and program the transponder or fob at your vehicle. We test the key in the door, the ignition or start button, and any remote functions, so you are not left discovering a problem after we leave.
- 5
We repair ignition or lock problems if needed
Sticking ignitions, broken key fragments, and worn door locks can often be repaired or replaced on location. We explain whether a repair makes sense or whether a full replacement is the more reliable choice for the vehicle.
- 6
We review the work with you
Before you drive off, we confirm that every key works and show you how to care for it. If a spare is a good idea, we say so plainly. The decision stays with you.
Need automotive locksmith in Walnut?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
What affects the price
- Vehicle make, model, and year, since many newer vehicles have more complex security systems than older ones.
- The type of key involved, whether a basic mechanical key, a transponder key, a remote head key, or a push-button smart key.
- Whether you still have a working key to copy or all keys are lost and a new one must be created from scratch.
- The nature of the job, such as a simple lockout versus ignition repair, broken key extraction, or replacing a damaged lock cylinder.
- Time of day and location, since late-night or hard-to-reach service involves different logistics than a daytime call.
- Quantity of vehicles or keys, which matters for fleets, families needing multiple spares, or businesses with several trucks.
Why Walnut chooses us
- Fully mobile service means we work at your vehicle instead of requiring a tow to a shop, which can be a real saving of time and hassle.
- Open around the clock, every day, so a late-night lockout after a class or a long drive on the 60 does not have to wait until morning.
- Since 1987, we have been working on vehicles across Greater Los Angeles and Ventura County, which gives us long experience with both older and modern key systems.
- We handle cars, trucks, motorcycles, RVs, and fleets, so one call can cover whatever you or your business drives.
- Owner-led, with David Shar overseeing the work, so standards stay consistent and you are dealing with people accountable for the result.
- We explain options and tell you what a job involves before starting, and we do not push unnecessary replacements.
Automotive Locksmith across Walnut
Walnut sits between the San Jose Hills and the Puente Hills, and its vehicles reflect the way people live here. Many households in neighborhoods like Walnut Heights and the gated community of Snow Creek have more than one car, plus trucks or trailers, parked on larger lots. A lost key or a failed fob at home can mean a stranded family, so we regularly think about situations where the vehicle is behind a gated drive or a code-controlled entry, and we coordinate with you to reach it.
The Mt. San Antonio College area brings its own pattern. Students and commuters park around campus and along Grand Ave, and a lockout during a busy day or after an evening class is a common reason to call. We come to the lot or street where you are, whether you are near Mt. SAC, Suzanne Park, or Creekside Park, and we work to get you back in without damage. If you live or work in ZIP 91789 or 91788, we serve you the same way.
Walnut drivers also lean heavily on SR-60, SR-57, Valley Blvd, Lemon Ave, Nogales St, Amar Rd, and Pierre Rd for daily commutes. If a key fails after a long drive or you realize you are down to a single key, you do not have to wait for a convenient moment. Call (323) 997-8867 and we will talk through the best way to help. Equestrian properties in the hills often have trucks and trailers that work hard, and we can service those vehicles right where they are parked.
- 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.
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.
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 automotive locksmith page.
Automotive Locksmith in Walnut — FAQs
Can you come to me if I am locked out near Mt. San Antonio College?
Do you make keys if I have lost all of mine?
Will opening my car door damage it?
Can you program a key fob for a newer vehicle?
Do you service trucks, RVs, and motorcycles?
What proof of ownership will you ask for?
Can you help with a broken key stuck in the ignition or door?
How is the price for automotive locksmith service determined?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.