Lock Rekeying in Duarte · 24/7 mobile
Lock Rekeying in Duarte, CA
Crenshaw Lock Company provides mobile lock rekeying in Duarte, California, 24 hours a day, 7 days a week. We come to your home, change the internal pins so old keys no longer work, and leave you with new keys. Call (323) 997-8867.
- Mobile to your Duarte location
- Available 24/7
- Price quoted before we start

Rekeying is the simplest way to take back control of who can open your doors. Instead of replacing hardware, we alter the inside of the lock cylinder so it responds to a new key and the old keys, including copies you never knew existed, stop working. Your existing locks, handles and deadbolts stay on the door.
In Duarte, the most common reason people call is a recent home purchase. Many houses here are 1950s and 1960s single-story ranch and tract homes, and the previous owners, their relatives, a contractor or a former tenant may still hold keys. Rekeying fixes that in one visit. It is also a sensible response after a lost key, a roommate moving out, a breakup, or a break-in attempt.
Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are fully mobile, with no storefront to visit, so everything happens at your door.
How it works in Duarte
- 1
Call and describe the job
Call (323) 997-8867 and tell us how many doors you want rekeyed, such as front, back, garage entry and any side gates, and what brands of lock you have if you know them. We are available around the clock, so a late-evening closing or an early-morning move-in is fine.
- 2
We come to you
Because we are fully mobile, a technician drives to your Duarte address with the tools and key blanks needed. There is nothing to drop off and no shop to visit.
- 3
Inspect each lock
Before any work, we check that every cylinder is in good working order. A lock that is worn, loose or damaged may be better replaced, and we will tell you plainly if that is the case rather than rekeying something that will fail soon.
- 4
Rekey the cylinders
We remove each cylinder, replace its internal pins to match a new key cut, and reinstall it. Old keys will no longer turn the lock. We can set several locks to one key, so the front, back and garage doors all open with the same one.
- 5
Test and hand over keys
We test every lock with the new key and confirm the old key fails. You receive your new keys, and we can cut extra copies on the spot if you need them for family members.
Need lock rekeying in Duarte?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
What affects the price
- The number of locks or cylinders being rekeyed, since each one is disassembled and re-pinned.
- Whether you want all locks keyed alike to a single key or separate keys for different doors.
- The brand and condition of the existing hardware, because some locks are more involved to rekey and worn ones may need replacing.
- How many extra copies of the new key you want.
- Add-on work such as a deadbolt upgrade or gate-lock replacement during the same visit.
- The time of day or night you call, as after-hours service differs from a scheduled daytime visit.
Why Duarte chooses us
- Fully mobile service: we come to your Duarte home, so there is no shop trip and no leaving doors unsecured.
- In business since 1987, with owner David Shar leading the work rather than handing it off to unknown subcontractors.
- Available 24/7, which suits the unpredictable timing of home closings and move-ins.
- Honest assessment: if a lock is worn out, we say so instead of rekeying hardware that will not last.
- Familiarity with the older tract-home hardware common in Duarte, and the ability to consolidate every exterior door to a single key.
- Straightforward pricing discussion based on the work involved, with no surprises added at the door.
Lock Rekeying across Duarte
Duarte's housing stock shapes much of our rekey work. In the Butler and Cotter neighborhoods, the 1950s and 1960s ranch and tract homes often have original or mismatched locks on the front, back and garage doors, accumulated over decades of owners. A whole-house rekey after purchase lets you carry one key for everything and be certain nobody else holds a working copy. We regularly serve addresses in ZIP code 91010 for exactly this reason.
Up toward Royal Oaks and the Fish Canyon area, custom foothill homes tend to have more entry points, including side gates and detached structures. After a break-in attempt, homeowners often pair a rekey with a stronger deadbolt and a gate-lock upgrade. Newer condos and apartments near the A Line in ZIP code 91009 and nearby streets have their own needs, such as rekeying after a tenant moves out.
Duarte is also home to City of Hope, and many medical professionals who live and work near the campus keep demanding schedules. Being available 24/7 means we can rekey a home or office after a lost key, whether you are coming off a late shift or heading in early. We reach customers via I-210, I-605, Huntington Drive (Route 66), Mountain Avenue and Buena Vista Street.
- Butler
- Cotter
- Royal Oaks
- Fish Canyon area
Locked out or need a locksmith now?
24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.
Other Duarte 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 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 Duarte services, or our citywide lock rekeying page.
Lock Rekeying in Duarte — FAQs
What is the difference between rekeying and replacing a lock?
Should I rekey after buying a home in Duarte?
Can all my doors work with a single key?
Do I need to be home during the rekey?
Will rekeying fix a lock that is worn or damaged?
Do you offer rekeying at night or on weekends?
Do I need to go to a shop to get the work done?
Can you rekey after a break-in attempt?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.