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Crenshaw Lock

Lock Replacement in Walnut · 24/7 mobile

Lock Replacement in Walnut, California

Crenshaw Lock Company provides mobile lock replacement in Walnut, California, 24 hours a day, 7 days a week. We come to your home, swap worn, damaged or outdated locks for new hardware, and test every key. Call (323) 997-8867 to schedule or ask a question.

  • Mobile to your Walnut 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
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Most homes in Walnut are single-family tract houses on generous lots, built from the 1970s and 80s onward, with newer custom homes mixed in. Those front doors, side doors, garage entries and back patio slider locks have often been in service for decades. Hardware gets stiff, keys get worn, and over the years a surprising number of copies end up with old tenants, contractors, relatives and neighbors. Replacing the lock is often the cleanest way to reset who has access.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the business around coming to the customer. We are fully mobile, with no storefront to visit. We bring hardware and tools to your door in Walnut, work on site, and leave you with locks that operate smoothly and keys that work the first time.

Lock replacement is not one job. A swap on a sticky deadbolt, a rekey-versus-replace decision after a move, a smart lock for a gated-community home, and a latch on a hillside barn gate are all different. We look at what you have, explain the options plainly, and only replace what actually needs replacing.

How it works in Walnut

  1. 1

    You call and describe the situation

    Call (323) 997-8867 any hour. Tell us which doors or gates are involved, what is wrong with the current locks, and whether you need the work done urgently after a break-in, a lost key or a move. We are available 24/7.

  2. 2

    We assess the existing hardware on site

    At your Walnut property we check the door, the strike plate, the bore holes and the lock itself. Sometimes the lock is fine and the real problem is a misaligned door or a loose plate. We tell you honestly whether replacement or a simpler fix makes sense.

  3. 3

    You choose the hardware

    We go over grade, finish, keying and features. That may mean a standard deadbolt, a keypad or smart lock, matching keyed-alike sets for several doors, or weather-resistant hardware for a gate or barn door. You decide before we start.

  4. 4

    We remove the old lock and install the new one

    We take out the old hardware, check the door prep, and install the new lock so the bolt throws fully and the latch seats properly. If the door needs minor adjustment to work correctly, we handle that during the visit.

  5. 5

    We test everything and hand over keys

    We cycle each lock several times from both sides, test every key, and walk you through any electronic settings or codes. You keep the new keys, and we can explain how to retire old ones, such as codes on a smart lock.

Need lock replacement in Walnut?

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: a basic keyed deadbolt, a high-security cylinder, a keypad lock and a full smart lock sit in very different cost ranges.
  • How many doors, gates or entry points are being replaced, and whether you want them keyed alike so one key opens everything.
  • The condition of the door and frame, since worn bores, damaged strike plates or warped doors may need extra work for the new lock to function properly.
  • The grade and finish of the hardware, including weather-resistant or heavy-duty options for exterior gates, barns and sun-exposed doors.
  • Whether the call is urgent or after hours, such as replacing locks right after a break-in at night, compared with a scheduled daytime visit.
  • Added features such as compatibility with an existing smart-home setup or gated-community access arrangements.

Why Walnut chooses us

  • Fully mobile service: we come to you anywhere in Walnut, so there is no shop to drive to and no need to bring a door anywhere.
  • Serving Greater Los Angeles and Ventura County since 1987, with owner and lead technician David Shar standing behind the work.
  • We tell you when rekeying or a small repair will do the job, rather than pushing a full replacement you may not need.
  • Available 24/7, which matters when a lock fails, keys go missing or a break-in leaves a door unsecured at night.
  • Comfortable with the mix of hardware found in Walnut: standard tract-home deadbolts, keypad and smart locks, and rugged gate and barn latches.
  • We test every lock and key before leaving and explain how your new hardware works, including any codes or settings.

Lock Replacement across Walnut

Walnut sits between the San Jose Hills and the Puente Hills, and its housing reflects that setting. In Snow Creek, the gated community, many homes already have electronic or smart entry, and owners often want a new lock that works with their setup while still being easy for family to use. In Walnut Heights and other hillside pockets, larger lots and equestrian properties bring in hardware most city locksmith calls never touch: driveway gate locks, barn latches and side-yard gates that face sun, dust and weather all year.

Our work covers addresses in ZIP codes 91789 and 91788, from homes off Amar Rd, Lemon Ave, Nogales St and Pierre Rd to properties near Valley Blvd and Grand Ave. If you live near Suzanne Park or Creekside Park, we are used to the quieter residential streets and cul-de-sacs, and we come to you rather than asking you to travel. Because Walnut is easy to reach from SR-60 and SR-57, we serve the whole city.

Near Mt. San Antonio College, a lot of lock calls come from renters, students and commuters. Rental turnover is a common reason to replace locks, since you cannot always know who still holds a key. Whether you are a landlord resetting a unit, a homeowner who just bought a house, or someone near Grand Ave who needs hardware changed fast, call (323) 997-8867 and we will work out the right fix.

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 Walnut locksmith services

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

Lock Replacement in Walnut — FAQs

When should I replace a lock instead of rekeying it in Walnut?
Rekeying is enough when the lock works well but you want old keys to stop working. Replacement makes sense when the hardware is worn, damaged, loose, outdated or you want features like a keypad or smart lock. We will tell you which applies. Call (323) 997-8867 to talk it through.
Can you replace locks at a gated community like Snow Creek?
Yes, we do lock replacement at homes inside gated communities. Gate access is arranged by the resident or community, so let us know ahead of time how we get in. We can also install smart or keypad locks on the home itself.
Do you work on barn and driveway gate locks?
Yes. Hillside and equestrian properties in Walnut often have driveway gates, barn doors and side gates. We can replace or upgrade latches and locks designed to handle weather, dust and heavy daily use.
Are you available at night or on weekends?
Yes, we are available 24/7. If you need locks replaced after a break-in, a lost key or a late-night emergency, call (323) 997-8867 any time and we will help.
Do I need to be home during the replacement?
Someone authorized should be present so we can confirm which locks to replace and hand over the new keys. If the situation is unusual, such as a landlord managing a unit, call us and we will discuss options.
Can you install smart locks?
Yes. We install keypad and smart locks on Walnut homes and explain the setup, codes and settings before we leave. Let us know your current setup so we can recommend compatible hardware.
Do you have a shop I can visit?
No. Crenshaw Lock Company is fully mobile with no storefront. We bring the hardware and tools to your door anywhere in Walnut.
How is the price for lock replacement determined?
Price depends on the type and grade of lock, how many doors or gates are involved, the condition of the door, and whether the visit is urgent or after hours. Call (323) 997-8867 and describe the job so we can explain what applies.
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