Key Fob Replacement in South El Monte · 24/7 mobile
Key Fob Replacement in South El Monte, California
Crenshaw Lock Company provides mobile key fob replacement in South El Monte, California, 24 hours a day, 7 days a week. We come to your vehicle and replace and program remote fobs and smart keys on site. Call (323) 997-8867 to describe your car and get started.
- Mobile to your South El Monte location
- Available 24/7
- Price quoted before we start

A key fob that has gone missing, cracked, or stopped responding can stop your whole day, especially in a city where many people commute to warehouses, factories, and yards along Rush Street, Santa Anita Ave, and Peck Rd. You should not have to arrange a tow to a dealership just to get a working key. Crenshaw Lock Company is fully mobile, so we bring the equipment to wherever the car is parked.
We replace and program remote key fobs, flip keys, and smart or proximity keys. That covers the situation where you have lost every key and the car must be keyed from scratch, as well as the simpler case where you have a working spare and want another one made. We have served Greater Los Angeles and Ventura County since 1987, under owner and lead technician David Shar, and automotive key work is a regular part of what we do.
There is no storefront to visit. You call, we talk through the vehicle's make, model, and year, and we come to you. Whether you are in a work lot near the I-10 on-ramps, at home in one of the post-war neighborhoods, or at the edge of Whittier Narrows, the process is the same: confirm the car is yours, make or source the right fob, program it, and test it before we leave.
How it works in South El Monte
- 1
Call and describe the vehicle
Phone (323) 997-8867 and tell us the make, model, year, and how many working keys you have left, if any. Those details tell us whether the car uses a basic remote, a transponder key, or a push-button smart key, and what equipment the job will need.
- 2
We travel to your location
Our technicians are mobile, so we meet you at your home, your workplace, or the lot where the car is parked. We work in South El Monte at all hours, including nights and weekends.
- 3
Verify ownership
Before cutting or programming anything, we ask for proof that the vehicle is yours, such as ID matched with registration or title. This protects you and keeps keys from reaching the wrong hands.
- 4
Cut and prepare the new key
If the fob includes a mechanical blade, we cut it to the vehicle's code or by impression. We then prepare the electronic side so the fob can be introduced to the car's immobilizer.
- 5
Program the fob to the vehicle
We pair the new fob with the car's computer and set up the remote functions such as lock, unlock, trunk, and panic. For smart keys, we confirm push-to-start recognition as well.
- 6
Test everything before we go
We try the remote buttons, the door lock, and the ignition or start button, and we confirm any spare keys still work. You leave with a fob you have seen working.
Need key fob replacement in South El Monte?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
What affects the price
- Vehicle make, model, and year, since some brands use more complex security systems than others
- Type of key: basic remote, flip key, transponder key, or push-button smart key
- Whether you have a working key to copy or all keys are lost, which changes the programming steps
- Whether the key blade needs cutting and whether the fob is original equipment or a quality aftermarket unit
- How many fobs you need made at the same visit
- Time of day and your location within our service area
Why South El Monte chooses us
- Fully mobile service: we do the work at your car, so you avoid towing a vehicle with no working key
- Open 24/7, which suits shift workers and drivers who get stuck outside normal business hours
- In business since 1987, with owner David Shar leading the technical work
- Ownership verification on every job, so a replacement key goes only to the rightful owner
- We test each fob's remote functions and start recognition before finishing, not just the lock
- We discuss options up front, including whether an original or aftermarket fob fits your vehicle and needs
Key Fob Replacement across South El Monte
South El Monte is one of the San Gabriel Valley's most industrial cities, and that shapes how people here use their vehicles. Many drivers park all day in lots around the Rush Street and Santa Anita industrial district, and a fob that goes missing during a shift in a warehouse or factory yard can leave someone stranded far from home. We come to the lot, verify the vehicle, and program a replacement there. The same goes for people in the 91733 ZIP code who simply lose a key at home or find that their remote stopped working.
The city sits between Interstate 10 and the Whittier Narrows area, and daily traffic moves along Rosemead Blvd (SR-19), Durfee Ave, Peck Rd, and Santa Anita Ave. Plenty of people also spend weekends near Whittier Narrows Recreation Area and Legg Lake, where a fob can be dropped or lost in the grass or by the water. If that happens, call us and we will meet you where the car is.
We also see work vehicles tied to the local industrial parks, including box trucks and fleet cars. If a driver loses a fob or locks keys in a cab at a yard, we can help with the key side, whether that means a replacement fob or getting back into the vehicle. Residents in the post-war homes and small apartment buildings away from the industrial corridors get the same 24/7 mobile service. Call (323) 997-8867 any time.
- Rush Street / Santa Anita industrial district
- Whittier Narrows (south edge)
Locked out or need a locksmith now?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
Other South El Monte 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.
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.
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 South El Monte services, or our citywide key fob replacement page.
Key Fob Replacement in South El Monte — FAQs
Can you replace a key fob if I have lost all my keys?
Do I need to tow my car to a dealership?
Do you work on smart keys and push-to-start cars?
What do I need to prove the car is mine?
Can you come to my workplace in the Rush Street industrial area?
Is it worth replacing a fob if it just stopped working?
Are you available at night and on weekends?
Can I get a spare fob made while you are there?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.