Car Key Replacement in Sylmar · 24/7 mobile
Car Key Replacement in Sylmar, California
Crenshaw Lock Company provides car key replacement in Sylmar, California, 24 hours a day. We are fully mobile, so we come to your vehicle and cut and program a new key on site, even if you have no original. Call (323) 997-8867 any time, day or night.
- Mobile to your Sylmar location
- Available 24/7
- Price quoted before we start

Losing the only key to your car is stressful anywhere, but in Sylmar it can be especially disruptive. This is a large, spread-out community that climbs from the valley floor into the San Gabriel foothills, and most people depend on a car for nearly everything. Whether you are commuting toward the I-5, I-210 or SR-14 interchange, heading to a shift at Olive View-UCLA Medical Center, or running errands along Foothill Boulevard, a missing or snapped key can stop your day cold.
Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner David Shar leads the work. We are a mobile service only. There is no shop to tow your car to and no counter to visit. Instead, the equipment needed to cut keys and program transponders and key fobs comes to wherever your vehicle is parked, whether that is a driveway, a hospital lot, a park, or the shoulder of a road.
Car key replacement covers several situations: a key that was lost, a key that snapped in the ignition or door, a worn key that no longer turns reliably, or a fob that has stopped communicating with the car. In many cases we can make a working key even when no original exists, by working from the vehicle itself. Because every make, model and year is different, we confirm what your vehicle needs before any work begins.
How it works in Sylmar
- 1
Call and describe the situation
Call (323) 997-8867 and tell us the make, model and year of the vehicle, where it is parked, and whether you have any working key at all. We are available 24/7, so a late-night call from a foothill driveway is as welcome as a daytime one.
- 2
We come to your vehicle
Because we are fully mobile, we drive to you in Sylmar with key cutting and programming equipment. You do not need to arrange a tow or move the car, which matters on hillside streets or in large lots near the medical center.
- 3
Verify ownership
Before making a key we ask for reasonable proof that the vehicle is yours, such as ID matched to registration or title. This protects you, since the same process would otherwise let someone else make a key to your car.
- 4
Cut the key
We cut a new key to match your vehicle's lock. If there is no original to copy, we can generate the cut from the vehicle's information and the lock itself. Broken pieces stuck in an ignition or door cylinder are removed first when needed.
- 5
Program the transponder or fob
Most modern keys contain a chip that the car must recognize. We program the new key or remote to your vehicle's system on site and, where appropriate, can remove lost keys from the car's memory so they no longer start it.
- 6
Test everything before we finish
We test the key in the door, the ignition and any remote functions, such as lock, unlock and push-to-start, so you know it all works before we leave.
Need car key replacement in Sylmar?
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 systems are simple and others require more involved programming.
- Key type: a basic mechanical key, a transponder key, a remote head key, a flip key or a smart proximity fob each involve different parts and work.
- Whether you have an existing key to copy or all keys are lost, which changes how the new key is generated.
- Whether a broken key must be extracted from an ignition, door or trunk lock first.
- Time of day and location, since we serve around the clock across a wide area and foothill locations can differ in access.
- Number of keys needed, such as a spare made at the same visit as the replacement.
Why Sylmar chooses us
- Fully mobile since 1987: the work happens at your car, with no storefront trip and no tow required for most key jobs.
- Available 24/7, including nights and weekends, when lost keys tend to turn up as problems.
- Owner-led: David Shar leads the work, so you are dealing with experienced hands rather than a call center handing off jobs.
- We can often make a key with no original, so losing your only key does not automatically mean replacing the ignition or reprogramming the whole car.
- Ownership checks on every job, which protect you and keep our work above board.
- Honest scoping: we tell you what your vehicle needs before work starts and recommend a spare so you are not stranded twice.
Car Key Replacement across Sylmar
Sylmar covers a lot of ground, and car trouble shows up in all of it. In Rancho Cascades and other newer gated subdivisions, residents often park behind electronic driveway gates and keypads, so a lost key can mean a car sitting in a garage you still need to reach. In the older foothill streets around Olive View, with their steeper approaches and tight driveways, being able to cut and program a key right where the car sits saves the difficulty of towing.
We work throughout 91342 and the surrounding area, from homes in El Cariso near El Cariso Community Regional Park & Golf Course to lots at Veterans Memorial Community Regional Park and the Wildlife Learning Center. Staff and visitors at Olive View-UCLA Medical Center sometimes lose keys during long shifts or stressful visits; a mobile service means we can meet you in the parking lot rather than asking you to go anywhere.
Much of Sylmar's daily travel runs along Foothill Boulevard, Hubbard Street and Roxford Street, feeding the I-5, I-210 and SR-14 junction known as the Newhall Pass interchange. If your key fails on one of these routes or at a home off them, call (323) 997-8867 and we will come to you. We also handle rural and equestrian properties, where keys are easily lost around barns, trailers and trucks parked on dusty lots.
- Rancho Cascades
- El Cariso
- Olive View / foothills district
Locked out or need a locksmith now?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
Other Sylmar 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 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 Sylmar services, or our citywide car key replacement page.
Car Key Replacement in Sylmar — FAQs
Can you make a car key in Sylmar if I have lost all my keys?
Do I need to tow my car to you?
Are you available at night or on weekends?
What proof of ownership will I need?
Can a broken key be removed from my ignition or door?
Will the old lost key still start my car?
How is the cost of a replacement key determined?
Should I get a spare key 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.