Residential Locksmith in Monrovia · 24/7 mobile
Residential Locksmith in Monrovia, California
Crenshaw Lock Company provides residential locksmith service in Monrovia, California, 24 hours a day, 7 days a week. We are fully mobile and come to your home for rekeys, repairs, replacements and upgrades. Call (323) 997-8867 and describe your doors, and we will plan the right fix.
- Mobile to your Monrovia location
- Available 24/7
- Price quoted before we start

Monrovia is a foothill city with real architectural character, and its homes ask more of a locksmith than a typical tract house does. Around Old Town you find Craftsman bungalows and Victorians from the early 1900s through the 1930s, many still carrying their original mortise and rim hardware. Further north, hillside custom and mid-century homes climb toward the canyon above Foothill Boulevard. Each calls for a different approach, and a single standard lockset swap is rarely the best answer.
Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are mobile only, so there is no storefront to visit. We bring the tools and hardware to your door, whether you are locked out at night, moving into a newly purchased house, or tired of a sticky deadbolt you have been fighting for years.
Our residential work covers rekeying, lock repair, replacement, deadbolt and entry hardware upgrades, and gate or side-door locks. Our aim is to fix what is actually wrong, preserve period hardware when it is worth saving, and tell you plainly when something should be replaced instead. Call (323) 997-8867 any time, day or night.
How it works in Monrovia
- 1
Call and describe the situation
Phone (323) 997-8867 and tell us what is happening: a lockout, a house you just bought, a key that will not turn, or a door you want to secure. Mention the age and style of the home and the type of lock if you know it. That helps us bring the right parts the first time.
- 2
We come to you
We are fully mobile and available around the clock, so we travel to your Monrovia address with tools, key blanks and common hardware on board. Whether you are near Old Town, in Mayflower Village or up in the foothills, the work happens at your door.
- 3
Assess the hardware
Before touching anything, we look at the lock, the door and the strike. On older Craftsman doors that means identifying mortise or rim hardware and judging whether it can be rekeyed or repaired. On newer homes it usually means checking deadbolts, knobs and handlesets for wear or poor alignment.
- 4
Explain options and the price drivers
We walk you through what we recommend and why, including a rekey versus a replacement where both are realistic. You hear what affects the cost before work starts, so there are no surprises and no pressure to buy more than you need.
- 5
Complete the work carefully
We rekey, repair, install or upgrade with attention to the finish and fit of your door. On vintage doors we work to avoid unnecessary drilling or cosmetic damage. Every lock is tested with the door open and closed.
- 6
Test keys and hand over
We cut and test every key, confirm each lock operates smoothly, and show you how anything new works. If you have a side gate, garage entry door or secondary lock that should match, we can bring those onto the same key where the hardware allows.
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24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
What affects the price
- Whether the job is a rekey, repair or full replacement, since rekeying existing hardware is a different scope than installing new locks.
- The type and age of the hardware, such as original mortise or rim locks on an Old Town Craftsman versus a modern deadbolt or smart lock.
- The number of locks involved, including front and back doors, side-yard gates, garage entry and any secondary doors you want on one key.
- The grade and brand of hardware you choose when replacing or upgrading, and whether it needs to match an existing finish.
- Door and frame condition, because warped, shifted or damaged doors may need adjustment before a lock will work properly.
- Time of day and the nature of the call, as an after-hours emergency lockout is a different situation from a scheduled rekey.
Why Monrovia chooses us
- Mobile only, 24/7: we come to your Monrovia home at any hour, with no storefront detour.
- In business since 1987, with owner and lead technician David Shar standing behind the work.
- Comfortable with period hardware: we try to keep original mortise and rim locks and vintage doors intact when it makes sense.
- Honest recommendations: if a lock can be rekeyed or repaired, we say so instead of defaulting to replacement.
- Experience with larger hillside lots, including long-driveway entries and side-yard gate locks.
- Clear explanation of the price factors before work begins, with no pressure to add things you do not need.
Residential Locksmith across Monrovia
Monrovia's housing runs from the historic to the hillside. In Old Town Monrovia, streets near Myrtle Avenue, Library Park and the Aztec Hotel hold Craftsman bungalows and Victorians where original hardware is part of the home's charm. A common job here is rekeying the original mortise and rim locks after a sale, so previous owners' keys no longer work while the vintage doors and trim stay intact. Homes in ZIP code 91016 often fall into this category.
Mayflower Village has its own mix of homes and everyday residential needs, from lockouts to worn deadbolts. Up in North Monrovia, hillside custom and mid-century homes sit above Foothill Boulevard toward Monrovia Canyon Park. After purchasing one of these, a full rekey is smart, and the larger lots frequently include long driveways and side-yard gate locks that also need attention. Many of these addresses fall in ZIP code 91017.
With I-210, Huntington Drive, Foothill Boulevard and Mountain Avenue connecting the city, and the Metro A Line station drawing commuters, many residents are out of the house for long stretches, which makes working locks matter. Myrtle Avenue's shops and restaurants also need locksmith help for storefront lockouts and commercial rekeys, and we are happy to assist there too. Wherever you are in Monrovia, call (323) 997-8867.
- Old Town Monrovia
- Mayflower Village
- North Monrovia (foothills)
Locked out or need a locksmith now?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
Other Monrovia 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.
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.
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 Monrovia services, or our citywide residential locksmith page.
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.