Open 24/7 · Greater Los Angeles & Ventura County

(323) 997-8867
Crenshaw Lock

Lock Replacement in Duarte · 24/7 mobile

Lock Replacement in Duarte, California

Crenshaw Lock Company provides 24/7 mobile lock replacement in Duarte, California. We come to your home or office, remove worn or damaged hardware, and install new locks that fit your doors and your needs. Call (323) 997-8867 to talk through your situation and get started.

  • Mobile to your Duarte location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
New matte black lock set beside an old worn brass lock
Open now(323) 997-8867

Locks do not last forever. In Duarte, where so many homes were built in the 1950s and 1960s, it is common to find original knobs, tired deadbolts, and strike plates held in with short screws that were never meant to resist a hard push. Lock replacement is the fix when a lock sticks, spins loose, no longer accepts a key cleanly, or simply does not give you the security you want anymore.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are fully mobile. There is no storefront to visit. We bring the tools and hardware to your door, whether that is a ranch house off Mountain Avenue, a condo near the A Line, or a custom home in the foothills. Owner and lead technician David Shar built the business on straightforward advice: if a lock can be repaired or simply rekeyed, we will say so, and if it is time for new hardware, we will explain why.

Replacement is also a smart move after life events. A new purchase, a move-out by a roommate or tenant, a lost set of keys, or a break-in attempt are all good reasons to start fresh. New hardware, keyed the way you want, means you know exactly who has access to your property.

How it works in Duarte

  1. 1

    Call and describe what you have

    Call (323) 997-8867 any time, day or night. Tell us which doors are involved, what the locks are doing, and what prompted the change. A worn deadbolt, a damaged cylinder, and a post-break-in upgrade each call for slightly different hardware.

  2. 2

    We come to you

    Because we are fully mobile, a technician travels to your Duarte address with a range of deadbolts, knobs, levers, and cylinders on board. We do not make you drive anywhere or visit a shop.

  3. 3

    Inspect the doors and existing hardware

    Before removing anything, we check the door, the bore holes, the latch, and the strike plate. On older tract homes, doors can be worn or slightly out of alignment, and it is better to catch that before installing new hardware.

  4. 4

    Choose the right replacement

    We go over options with you: grade of deadbolt, finish, keyed-alike sets so one key works front, back, and garage doors, or smart-lock-compatible choices. You decide what fits your budget and comfort level.

  5. 5

    Install and reinforce

    We remove the old lock, fit the new one, and where appropriate upgrade the strike plate with longer screws that reach the framing. Small details like this often matter more than the lock itself.

  6. 6

    Test and hand over keys

    We operate every lock several times with the door open and closed, confirm smooth latching, and give you all your keys. Old keys will no longer work on the new hardware.

Need lock replacement in Duarte?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

What affects the price

  • The number of locks being replaced, since a single door and a whole-house project are very different jobs.
  • The type and grade of hardware you choose, from basic residential deadbolts to higher-security models or keypad and smart options.
  • Whether the door or frame needs adjustment or reinforcement, such as a misaligned latch or a weak strike area.
  • Whether you want keyed-alike locks so several doors share one key, which can affect hardware selection.
  • Specialty items such as gate locks, garage entry doors, patio sliders, or unusual older hardware that needs matching.
  • Time of day and urgency, since we are available 24/7 and after-hours calls can differ from scheduled daytime visits.

Why Duarte chooses us

  • Fully mobile since 1987: we work at your door, not from a counter, so the recommendation fits the actual door in front of us.
  • Owner-led standards: David Shar leads the work and the approach, which favors honest advice over unnecessary upsells.
  • Available 24/7, so a broken lock or a post-incident upgrade does not have to wait for business hours.
  • We tell you when a rekey or repair is enough, and when replacement truly is the better choice.
  • Attention to installation details like strike plates and screw length, not just swapping the visible hardware.
  • Familiarity with the housing around Duarte, from mid-century ranch homes to newer condos and foothill custom builds.

Lock Replacement across Duarte

Duarte has a mix of housing that shapes the kind of lock work we see. In the Butler and Cotter neighborhoods, single-story ranch and tract homes from the 1950s and 1960s often still carry their original entry hardware. After a purchase, a common job is replacing worn front-door locks and consolidating the front, back, and garage doors onto one key. Homes in ZIP code 91010 often fit this pattern.

Up toward Royal Oaks and the Fish Canyon area, you find custom foothill homes with longer driveways, side gates, and more secluded entries. After a break-in attempt, homeowners there often want a stronger deadbolt, a reinforced strike, and a better gate lock. Closer to the A Line, newer condos and apartments tend to need lever or deadbolt swaps when tenants change or keys go missing. ZIP code 91009 and the surrounding blocks include some of these properties.

The City of Hope medical campus brings many medical professionals to the area, some of whom work irregular hours and may need service late at night or early in the morning. Being 24/7 and mobile means we can reach homes and offices near Huntington Drive, Mountain Avenue, and Buena Vista Street, with quick access from I-210 and I-605, without asking you to leave your property. Whether you live near Encanto Park, the Duarte Recreational Trail, or the Fish Canyon Falls trailhead, call (323) 997-8867.

Locked out or need a locksmith now?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

Other Duarte locksmith services

See all of our Duarte services, or our citywide lock replacement page.

Lock Replacement in Duarte — FAQs

How do I know if I need a lock replaced instead of rekeyed?
If the lock works smoothly and is in good shape, rekeying is often enough. Replacement makes sense when the lock is worn, damaged, loose, outdated, or when you want a stronger or different style. Call (323) 997-8867 and we will help you decide.
Do you offer lock replacement at night in Duarte?
Yes. We are 24/7 and fully mobile, so you can call at any hour about a broken lock, a break-in attempt, or a security concern.
Can you make all my doors use one key?
In most cases, yes. A keyed-alike setup is popular with owners of ranch homes in the Butler and Cotter areas who want the front, back, and garage doors on one key.
What should I do after a break-in attempt?
Make sure everyone is safe first and report the incident if appropriate. Then call us at (323) 997-8867. We can inspect the door and frame, replace damaged locks, and upgrade deadbolts, strikes, and gate hardware.
Do I need to come to a shop?
No. Crenshaw Lock Company is mobile only. There is no storefront; we come to your home or office in Duarte.
Can you replace locks on a gate or side entry?
Often yes. Many foothill homes near Royal Oaks and Fish Canyon have gates or side doors that need upgraded hardware. Describe the gate when you call so we can bring suitable options.
Will the old keys still work after replacement?
No. Once new locks are installed, the old keys will not operate them. That is one of the main benefits after buying a home, losing keys, or changing tenants.
How is the price of lock replacement determined?
It depends on how many locks, the hardware you select, any door or frame work needed, and the timing of the call. We will discuss the options with you, and you can reach us at (323) 997-8867 to start.
DS

Reviewed by David Shar — Owner & Lead Technician

Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.

Last updated 2026-10-12.

Call (323) 997-8867 · Open 24/7