Car Key Replacement in Simi Valley · 24/7 mobile
Car Key Replacement in Simi Valley, California
Crenshaw Lock Company provides car key replacement in Simi Valley, California, 24 hours a day, seven days a week. We come to you, cut and program a new key on site, even if you have no original. Call (323) 997-8867 to get started.
- Mobile to your Simi Valley location
- Available 24/7
- Price quoted before we start

Losing the only key to your car is stressful anywhere, but in Simi Valley it can stop your whole day. This is a commuter city. People leave early for the SR-118 and SR-23 or the Metrolink, and many park at work lots, trailheads, or shopping centers. A key that snaps in the ignition or vanishes on a hike can leave you stranded far from home.
Crenshaw Lock Company has served Los Angeles and Ventura County since 1987, and David Shar and the team work from a fully mobile setup. We do not have a storefront for you to tow your car to. We bring the key cutting and programming equipment to your vehicle, whether it sits in a driveway in Wood Ranch, a garage in Texas Tract, or a parking space near Simi Valley Town Center.
Modern car keys are more than a piece of metal. Many contain a transponder chip, and others are remote fobs or push-button smart keys that must be paired with the car's computer. Replacing one properly means cutting the blade if there is one, programming the chip or fob, and testing that it starts the car and operates the locks. We explain each step so you know what is happening before any work begins.
How it works in Simi Valley
- 1
Call and describe the situation
Call (323) 997-8867 any hour. Tell us the make, model, and year, whether you have any working key, and where the car is parked. This helps us bring the right key blanks and programming tools to the right Simi Valley address.
- 2
We come to your car
Because we are fully mobile, we drive to you, whether that is a home, a workplace, a trailhead lot, or a shopping center. There is nothing to tow and no shop to find.
- 3
Verify ownership
Before making a key we confirm you own the vehicle, typically by checking your ID against the registration or title. This protects you and keeps keys from reaching the wrong hands.
- 4
Cut the key
If your car uses a blade, we cut it on site. With no original key, we can generate a cut from the vehicle's information or from the lock itself, depending on the car.
- 5
Program the transponder or fob
We pair the new key or remote with the car's immobilizer so it starts the engine and controls the locks. Where the car supports it, we can also add a spare while we are there.
- 6
Test everything
We try the key in the door, trunk, and ignition, and check remote functions before we finish. You leave with a working key and a clear idea of what to do about a spare.
Need car key replacement in Simi Valley?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
What affects the price
- The type of key: a basic metal key, a transponder key, a remote head key, and a push-button smart key all involve different parts and programming effort.
- Vehicle make, model, and year, since some manufacturers use more involved security systems than others.
- Whether you have an original key to copy or all keys are lost, which changes how the key is generated and programmed.
- Whether you want one key or a spare as well, as adding a second key during the same visit is often more efficient than a separate trip.
- Time and location of the call, including after-hours service and how far we travel within Simi Valley and the surrounding area.
- Condition of the vehicle's ignition or locks, if a broken key or worn cylinder must be dealt with first.
Why Simi Valley chooses us
- Fully mobile service: we do the work at your car, so you do not pay for a tow to a shop.
- In business since 1987, with owner and lead tech David Shar leading the work.
- Available 24/7, including nights, weekends, and holidays.
- We replace keys even when you have no original, rather than sending you back to the dealer.
- We explain what type of key your car uses and what the work involves before we start.
- We verify ownership before cutting, which protects you and your vehicle.
Car Key Replacement across Simi Valley
Simi Valley spreads across several ZIP codes, including 93063, 93065, 93062, 93064, and 93094, and we work throughout them. In 93065 and the Wood Ranch and Big Sky areas, many homes have garages and gated streets where a car with a lost key may be sitting in a driveway. We come to your door and handle the key there. In older parts of town like Texas Tract and Santa Susana Knolls, a car may be parked along a narrow or winding street, and our mobile setup works fine at the curb.
Simi Valley's daily routines create their own key trouble. Cars are left at Rancho Simi Community Park during weekend games, at Corriganville Park or Santa Susana Pass State Historic Park after a hike, or outside the Ronald Reagan Presidential Library & Museum after a visit. A key can slip out of a pocket on a trail, and the first you know is back at the car. We can come to those lots and make a new key on the spot.
We also help people who work along Cochran St, First St, Madera Rd, and Tapo Canyon Rd, or who park at Simi Valley Town Center and find their keys missing at closing time. Wherever your car is, call (323) 997-8867 and we will find you.
- Wood Ranch
- Big Sky
- Santa Susana Knolls
- Bridle Path
- Texas Tract
Locked out or need a locksmith now?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
Other Simi Valley 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 Simi Valley services, or our citywide car key replacement page.
Car Key Replacement in Simi Valley — FAQs
Can you make a car key if I lost all my keys?
Do I need to tow my car to you?
Are you available at night or on weekends?
What do I need to show to get a key made?
Can you program a key fob or push-button start key?
What if my key broke off in the ignition or door?
Should I get a spare key at the same time?
How is the price 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.