Open 24/7 · Greater Los Angeles & Ventura County

(323) 997-8867
Crenshaw Lock

Automotive Locksmith in Diamond Bar · 24/7 mobile

Automotive Locksmith in Diamond Bar, CA

Crenshaw Lock Company provides 24/7 mobile automotive locksmith service in Diamond Bar, California: car lockouts, lost keys, transponder and fob programming, broken key extraction and ignition repair, all done where your vehicle is parked. Call (323) 997-8867 any hour and we will come to you.

  • Mobile to your Diamond Bar location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Car door handle and keyhole at dusk
Open now(323) 997-8867

A dead key fob or a locked door is never convenient, but in Diamond Bar it can be especially stressful. This is a hillside, commuter-heavy city where people leave early for the SR-57 and SR-60, park at Diamond Hills Plaza, or end the day at a trailhead in Sycamore Canyon Park. When a key goes missing or a door will not open, you want someone who comes to the car instead of asking you to arrange a tow.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead tech David Shar. We are fully mobile. There is no storefront to visit, because the work happens in your driveway, in a parking structure, or on the shoulder near the Grand Avenue interchange. We work on cars, trucks, motorcycles, RVs and fleet vehicles, and we answer the phone around the clock.

Our automotive work covers the everyday problems and the stubborn ones: keys locked inside, lost or stolen keys with none to copy from, worn keys that stick in the ignition, snapped keys, and fobs that no longer start the car. Each job is different, so we look at the vehicle first and explain what it needs before any work starts.

How it works in Diamond Bar

  1. 1

    Call and describe the situation

    Call (323) 997-8867 and tell us the make, model and year, where the vehicle is, and what happened. Whether it is a lockout, a lost key or a broken one, those details tell us what to bring. We are available 24/7, including nights, weekends and holidays.

  2. 2

    Confirm it is your vehicle

    Before opening a car or making a key, we ask for reasonable proof of ownership or authorization, such as ID matched to registration or insurance. It protects you, and it keeps us from helping with a theft.

  3. 3

    Assess the lock and key system

    We look at what the vehicle uses: a traditional key, a transponder key, a laser-cut key, a remote head key or a push-button start with a smart key. That determines whether we can open it with no trace, cut a key, or need to program a new one.

  4. 4

    Work on site with care

    For lockouts we use professional entry tools made to protect the paint, weatherstripping and door electronics. For lost keys we cut and program a replacement at your vehicle. For a broken key we extract the fragment and check the lock for damage.

  5. 5

    Test everything before we leave

    We try each new key in the door, trunk if applicable, and ignition, and check remote functions. You should leave with keys that work and a clear idea of what was done.

Need automotive locksmith in Diamond Bar?

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

Call (323) 997-8867

What affects the price

  • Type of service: opening a locked door, cutting a new key, programming a fob or repairing an ignition cylinder each involve different tools and time.
  • Vehicle make, model and year: many newer or European vehicles have more complex immobilizer systems than older models.
  • Key type: a basic mechanical key is simpler than a transponder, laser-cut or smart key that must be programmed to the car.
  • Whether you have a working key: copying from an existing key is usually simpler than creating one from scratch when all keys are lost.
  • Time of day and location: after-hours calls and hard-to-reach spots can affect the quote.
  • Extra parts or repair: a damaged ignition, door lock or broken key fragment may require parts or additional labor.

Why Diamond Bar chooses us

  • Fully mobile since 1987, so we come to your vehicle instead of requiring a tow to a shop.
  • Owner-led: David Shar is the lead tech, and the business is built on repeat local customers rather than one-time calls.
  • One call covers cars, trucks, motorcycles, RVs and fleets, which suits Diamond Bar households with several vehicles and small businesses with work vehicles.
  • We explain the job and the cost factors before starting, so there are no surprises when we finish.
  • We verify ownership every time, which protects you and your vehicle.
  • Available 24/7, which matters for early freeway commutes and late nights after events at Diamond Bar Center.

Automotive Locksmith across Diamond Bar

Diamond Bar's layout shapes the calls we get. In The Country Estates, a guard-gated hillside community, vehicles are often kept in garages or on steep driveways behind keypad gates, and many owners drive newer models with smart keys. In Pathfinder and the Sunset Crossing and Summitridge areas, tract-home driveways and street parking along hills and cul-de-sacs are common, so a lost key can quickly become a real problem before work or school.

We also help drivers along Diamond Bar Blvd, Grand Ave and Golden Springs Dr: a locked car at Diamond Hills Plaza, a key lost after a round at Diamond Bar Golf Course, or a fob that fails at a trailhead in Sycamore Canyon Park. Commuters near the SR-57/SR-60 interchange sometimes need help in office park lots, and we come to the vehicle in the 91765 and 91789 ZIP codes alike.

If you are in Diamond Bar and your car will not open, your key will not turn or your fob has stopped working, call (323) 997-8867. We answer around the clock and bring the work to you.

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 Diamond Bar locksmith services

See all of our Diamond Bar services, or our citywide automotive locksmith page.

Automotive Locksmith in Diamond Bar — FAQs

Can you unlock my car in Diamond Bar without damaging it?
Yes. We use professional tools made to open vehicles without harming paint, seals or door electronics. Call (323) 997-8867 and tell us the make and model so we can prepare.
I lost all my keys. Can you make a new one?
In most cases, yes. We can cut and program a replacement on site after confirming ownership, even when no working key exists. Complexity depends on the vehicle, so give us the year, make and model when you call.
Do you work on push-button start and smart key vehicles?
We handle many push-button start and smart key systems, which are common in newer vehicles. Support varies by model, so call (323) 997-8867 with your vehicle details and we will tell you what is possible.
Is there a shop I can drive to?
No. Crenshaw Lock Company is fully mobile, so there is no storefront to visit. We come to your car, which saves you the cost and hassle of a tow.
Are you available at night and on weekends?
Yes, we operate 24/7, including holidays. We do not make promises about arrival times, but we will tell you what to expect when you call.
What if my key broke off in the ignition or door?
We can extract the broken piece and check the lock for damage. If the lock or ignition is worn, we can discuss repair or replacement and cut a new key.
Do you service work trucks, RVs and fleet vehicles?
Yes. We work on cars, trucks, motorcycles, RVs and fleets, so small businesses can call one number for several vehicles.
What do you need from me before opening or rekeying a vehicle?
We ask for proof you own or are authorized to access the vehicle, such as ID matching the registration or insurance. If you are unsure what to have ready, call (323) 997-8867.
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