Key Duplication in Sylmar · 24/7 mobile
Key Duplication in Sylmar, California
Crenshaw Lock Company provides mobile key duplication in Sylmar, California, 24/7. We cut and copy house, office, mailbox and restricted keys at your home, ranch, or business, with no storefront trip needed. Call (323) 997-8867 to tell us what you need copied and where you are.
- Mobile to your Sylmar location
- Available 24/7
- Price quoted before we start

Most people think of key duplication as a quick errand to a hardware store counter. In Sylmar, that errand can mean a long drive down Foothill Boulevard or a detour onto the I-210 or I-5, only to find the blank doesn't match or the machine produces a copy that sticks in the lock. Crenshaw Lock Company brings the key machine and the know-how to you, so the copy is cut and tested in the lock it is meant to open.
Sylmar is a spread-out community. It runs from tract homes on the valley floor up into the San Gabriel foothills, and it includes gated subdivisions, equestrian properties with barns and outbuildings, and older modest houses. Each of these has different key needs: a gated household may need several matching copies for family members and a house sitter, a ranch may have a tack room, a barn, a trailer and a gate that all need keys, and an office near Olive View-UCLA Medical Center may have keys that need careful handling.
We have served Greater Los Angeles and Ventura County since 1987, and David Shar leads the work. We are fully mobile and available around the clock, which matters when you discover at night that your only key is the one that just snapped in the lock. This page explains how mobile duplication works, what affects the cost, and what to expect in Sylmar.
How it works in Sylmar
- 1
You call and describe the key
Call (323) 997-8867 and tell us what you need copied: a front-door key, a mailbox key, an office key, or a key stamped with a restricted or do-not-duplicate marking. Let us know your location in Sylmar and how many copies you want. We will tell you what we may need to see, such as the original key or proof that you are authorized.
- 2
We come to you
Because we are fully mobile, there is no shop to visit. We drive to your home, ranch, office or parking lot with a key-cutting setup in the vehicle, and we are available 24/7. That means a hillside property or a gated community is handled on site rather than by you running across town.
- 3
We check the key and the lock
Before cutting, we look at the original key for wear. A key that has been used for decades can produce a copy that is worse than the original. We also test the lock. If the lock is stiff because of dust or a racked door frame, we tell you, because a perfect copy will still struggle in a lock that is binding.
- 4
Cutting on location
We select the correct blank for the keyway and cut the copy. For restricted keyways, we confirm that you are the authorized holder before proceeding, because these systems exist to control who can have copies. Some restricted or high-security keys cannot be copied by a standard method, and we will say so plainly.
- 5
Testing and fine-tuning
A fresh cut can be slightly rough. We try each copy in the actual lock several times, smooth any burrs, and confirm it turns without force. If the copy catches, we adjust it instead of handing you something that will wear out your lock.
- 6
Wrap-up and advice
We hand over the keys and, where it makes sense, suggest practical next steps such as labeling spares, keeping one off-site, or rekeying if you do not know who holds old copies. The choice is yours, and we do not push work you do not need.
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What affects the price
- The type of key: a standard house key is a simpler job than a restricted, high-security, or transponder-style key, which require different blanks and equipment.
- The number of copies requested, since each additional cut adds a little time and material.
- Whether the original key is worn or damaged, which can mean extra work to get a copy that operates smoothly.
- The time of the call: after-hours, overnight and holiday requests are handled by a 24/7 service and may be priced differently from a scheduled daytime visit.
- Travel across Sylmar's spread-out area, from the valley floor to foothill and large-lot properties, can affect the overall quote.
- Whether other work is bundled in, such as rekeying a lock, freeing a stiff cylinder, or replacing a padlock on a barn or tack room.
Why Sylmar chooses us
- Fully mobile service: the key machine comes to your driveway, ranch gate, or office, and there is no storefront for you to visit.
- Experience dating to 1987 in Greater Los Angeles and Ventura County, with owner David Shar leading the work.
- We test every copy in the lock it is meant for, rather than handing over a blank-cut key and hoping.
- We are honest about limits: if a key is restricted, high-security, or legally protected from copying, we say so and explain the proper route.
- We notice the lock, not just the key, and point out when a racked frame, dusty cylinder, or worn lock is the real problem.
- 24/7 availability, which helps when a lost or broken key cannot wait until a store opens.
Key Duplication across Sylmar
Sylmar covers a lot of ground, and key needs vary by area. In Rancho Cascades and the other newer gated subdivisions, households often manage keys alongside keypads and call-boxes at the gate. When a home changes hands, a set of duplicate keys for the new owners is a common request, and it is often the right moment to consider rekeying so that old copies no longer work. Around 91342, we handle those requests at the property without you having to leave.
In El Cariso and the foothill areas toward Olive View, many properties are large-lot and semi-rural, with barns, tack rooms, trailers and detached outbuildings. Dust and grit in the air can make padlocks and older cylinders stiff, and a worn key tends to give out first. We can cut fresh copies, and when a lock is too seized to be worth saving, we can suggest a weather-resistant, shrouded replacement. Properties off Hubbard Street, Roxford Street or Foothill Boulevard often have several locks on one property, so having matching or well-organized keys makes a real difference.
Older homes in Sylmar also carry the history of the 1971 and 1994 earthquakes. Settling and racked frames can leave a deadbolt hard to throw, and people often blame the key. Before copying, we check whether the door and strike are aligned, because a new copy will not fix a bolt that no longer meets its strike. Whether you live near El Cariso Community Regional Park, Veterans Memorial Community Regional Park, or close to the Newhall Pass interchange, call (323) 997-8867 any hour.
- Rancho Cascades
- El Cariso
- Olive View / foothills district
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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 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 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 key duplication page.
Key Duplication in Sylmar — FAQs
Do you really come to me in Sylmar to copy a key?
Can you copy a key marked Do Not Duplicate?
Can you duplicate restricted or high-security keys?
Can you copy mailbox keys?
I have barn and tack-room padlocks that are stiff from dust. Can you help?
Why does my new key still not work well in the door?
Should I rekey instead of copying keys after buying a home?
Do you handle keys for gated properties with keypads?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.