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Crenshaw Lock

Smart Lock Installation in Duarte · 24/7 mobile

Smart Lock Installation in Duarte, California

Crenshaw Lock Company installs, sets up and troubleshoots smart, keyless and keypad locks across Duarte, California, 24/7. Our fully mobile service comes to your door, whether it's a tract ranch home or a foothill property. Call (323) 997-8867 to talk through your door and options.

  • Mobile to your Duarte location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Smart lock with a lit keypad on a front door at night
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A smart lock sounds simple: swap the deadbolt, pair an app, and never carry a key again. In practice, the result depends on the door, the strike plate, the bore holes, the Wi-Fi reach at your entry and how your household actually comes and goes. Getting those details right is what separates a lock that works every day from one that frustrates you in a week.

Duarte has a real mix of housing, which makes the work varied. The 1950s and 1960s single-story ranch and tract homes around Butler and Cotter often have original doors, older deadbolts and a front, back and garage entry that each take a different key. Newer condos and apartments near the A Line have their own rules and hardware limits. Up toward Royal Oaks and the Fish Canyon area, custom homes bring side gates, heavier doors and longer walks from the router.

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, with no storefront to visit. We come to you, install the lock, set it up with you at the door and make sure you know how to use it before we leave.

How it works in Duarte

  1. 1

    Talk through the door and your goals

    We start with a call to (323) 997-8867. Tell us which door you want to upgrade, whether you prefer a keypad, app control or a lock that still takes a key, and who else in the household needs access. This helps us arrive with suitable hardware in mind.

  2. 2

    Inspect the door and existing hardware

    At your home we check the door thickness, the bore holes, the edge preparation, the strike plate and how well the door closes. Many older ranch doors need small adjustments, and a smart lock on a misaligned door will jam or wear out batteries faster.

  3. 3

    Choose the right lock for the entry

    We go over options that fit your door and your habits. A front door that sees daily traffic has different needs than a back door or a side gate. We also discuss how the lock connects, and whether Wi-Fi, Bluetooth or a simple keypad makes sense at that spot.

  4. 4

    Install and reinforce

    We remove the old deadbolt, fit the new lock and, where it helps, upgrade the strike plate and screws so the door frame is as sturdy as the lock itself. Hardware is aligned so the bolt throws smoothly without forcing.

  5. 5

    Set up codes, app and backups

    We program user codes, pair the lock with your phone if you want app control, and test every function. We also show you the backup entry options and how to change batteries, so a dead battery never becomes a lockout.

  6. 6

    Walk-through and troubleshooting

    Before we leave, you operate the lock yourself from both sides of the door. If you already have a smart lock that's misbehaving, we diagnose alignment, battery, connection and programming problems and fix what can be fixed.

Need smart lock installation 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 type of lock chosen, from a basic keypad deadbolt to a connected smart lock with app features and extra integrations.
  • The condition of the door and frame, since older doors may need boring adjustments, a new strike plate or reinforcement before a lock fits properly.
  • How many doors are being done in one visit, such as front, back and garage entries on a single home.
  • Whether you need rekeying, removal of old hardware or a combined lockout and upgrade in the same trip.
  • The time of day, since we're available 24/7 and after-hours calls differ from scheduled daytime appointments.
  • Special situations like gate locks, metal or heavy custom doors, or troubleshooting an existing system that was installed by someone else.

Why Duarte chooses us

  • Fully mobile service: we bring the tools and hardware to your door anywhere in Duarte, so you don't have to shop or drop anything off.
  • In business since 1987, with owner David Shar leading the work, so you get real lock experience behind the newer technology.
  • We treat the door as part of the system, checking alignment, strike plates and frames instead of just bolting a gadget onto a worn door.
  • We keep mechanical backups in mind, so a dead battery or a phone glitch doesn't leave you locked out.
  • We explain setup at the door and don't push features you won't use. Sometimes a simple keypad is the better answer.
  • Available 24/7, which helps if a lockout or break-in attempt turns an upgrade into something urgent.

Smart Lock Installation across Duarte

In Duarte, smart lock requests tend to follow the housing. In the Butler and Cotter neighborhoods, many homeowners have 1950s and 1960s ranch homes with several entry doors on different keys. A common job is replacing the front deadbolt with a keypad or smart lock and consolidating the other doors so the household carries fewer keys. Homes in ZIP code 91010 often fit this pattern, with original doors that benefit from a careful fit check.

Up toward Royal Oaks and the Fish Canyon area, custom foothill homes have longer driveways, side gates and doors that see weather. After a break-in attempt, owners often want a stronger deadbolt, a reinforced strike plate and a keypad on the gate or side entry. Homes in ZIP code 91009 and the surrounding hills may also have patchy Wi-Fi at the front door, which we consider when recommending a lock.

Duarte also has a large medical-professional community connected to City of Hope, with shift schedules that make keyless entry appealing. Whether you live near Huntington Drive, off Mountain Avenue or Buena Vista Street, or in a condo near the A Line, we come to you from the I-210 or I-605 corridors at any hour. Call (323) 997-8867 to schedule an installation or ask about a lock that's giving you trouble.

Locked out or need a locksmith now?

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

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Other Duarte locksmith services

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

Smart Lock Installation in Duarte — FAQs

Do you install smart locks on older Duarte ranch homes?
Yes. Many 1950s and 1960s tract homes in Butler and Cotter have original doors and frames. We check alignment, bore holes and the strike plate, then fit the lock so it operates smoothly. Call (323) 997-8867 to describe your door.
Do I need Wi-Fi at my front door for a smart lock?
Not always. Keypad locks work without any connection, and many smart locks use Bluetooth. If you want remote access, Wi-Fi reach matters. We help you pick a lock that suits your entry, especially on larger foothill properties.
What happens if the batteries die?
Good smart locks give warnings before batteries run out, and most have a backup way in, such as a physical key or an external power option. We show you how yours works during setup so you're never stuck outside.
Can you fix a smart lock I installed myself?
Often, yes. Common problems include misaligned bolts, weak batteries, loose mounting and programming errors. We diagnose the cause on site and let you know honestly if the lock or the door needs replacing.
Can you do several doors in one visit?
Yes. Many homeowners upgrade the front door and rekey the back and garage doors so one key works throughout. Mentioning all the doors when you call lets us plan the visit properly.
Do you work on gate locks near Royal Oaks and Fish Canyon?
We do. Gate and side-entry locks are common upgrades on foothill homes, especially after a break-in attempt. Call (323) 997-8867 and tell us about the gate type so we can plan the right hardware.
Can you help if I'm locked out and want a smart lock afterward?
Yes. We're available 24/7 and can get you inside first, then install a keypad or smart deadbolt in the same visit if you'd like, depending on your door and the hardware available.
Do I need to visit your shop to choose a lock?
No. Crenshaw Lock Company is fully mobile with no storefront. We discuss options by phone, then bring suitable hardware and help you choose at your door.
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