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(323) 997-8867
Crenshaw Lock

Emergency Locksmith in Diamond Bar · 24/7 mobile

Emergency Locksmith in Diamond Bar, California

Crenshaw Lock Company provides 24/7 emergency locksmith service in Diamond Bar, California. Our fully mobile technicians come to your home, car or business for lockouts, broken keys and failed locks, day or night. Call (323) 997-8867 and describe your situation, and we will dispatch to your location.

  • 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
Locksmith tools lit by a flashlight at night
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A lockout never picks a convenient hour. In Diamond Bar it tends to happen at the end of a long commute home on the SR-60, after a late night at Diamond Bar Center, or on a hot afternoon when an aging deadbolt finally refuses to turn. When it does, you want a person who understands the locks on these hillside homes and who can reach you without sending you anywhere.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the business around one idea: the work comes to you. We are fully mobile. There is no storefront to visit, no key counter, and nothing to drive to. We take your call at any hour, ask the questions that matter, and send a technician equipped for the job.

Emergency work in Diamond Bar covers a wide range. Some calls are simple home lockouts. Others involve a keypad gate, a smart deadbolt that has lost power, a key snapped inside an office cylinder, or a patio door whose multi-point lock has seized. We approach each with the goal of getting you in or secured with as little damage as possible, and we explain options before we begin.

How it works in Diamond Bar

  1. 1

    Call and describe the problem

    Reach us at (323) 997-8867 at any hour. Tell us what is locked, what type of lock it is if you know, and where you are. A house, a car and a storefront each need different tools, so these details help us prepare.

  2. 2

    Dispatch to your location

    Because we are fully mobile, a technician travels to you in Diamond Bar rather than asking you to come to a shop. We will tell you what to expect on the way, without making promises about timing we cannot control.

  3. 3

    Verify who you are

    Before opening a home, vehicle or business, the technician asks for reasonable proof that you live there, own the vehicle or are authorized for the space. This protects you and your neighbors.

  4. 4

    Choose the least destructive entry

    We favor non-destructive methods such as picking, bypass or manipulating the mechanism. On high-end finishes or electronic hardware, we avoid drilling unless it is truly the only route, and we tell you first if it is.

  5. 5

    Repair, rekey or replace on the spot

    Once the door is open, we can fix the failing part, rekey the lock so lost keys no longer work, or replace the hardware. For a broken key in a commercial cylinder, we extract the fragment and install a new cylinder if needed.

  6. 6

    Test and confirm

    We operate every lock we touched several times, check the strike and alignment, and make sure you leave with working keys or codes and a secure property.

Need emergency 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

  • The type of lock involved: a standard builder-grade deadbolt, a high-security cylinder and a smart or keypad lock each call for different tools and time.
  • Whether we can open it without damage or need to repair or replace hardware afterward, which changes parts and labor.
  • The hour and location of the call, since overnight, weekend and holiday dispatch differ from daytime service.
  • Whether you need only entry, or also rekeying, new cylinders, replacement deadbolts or key duplication.
  • Complexity of the property, such as a gated entry plus a separate high-security front door, or a commercial storefront with specialized cylinders.
  • Travel distance across the service area, including reaching hillside streets away from the main corridors.

Why Diamond Bar chooses us

  • Fully mobile service. Everything happens at your door, and there is no shop to travel to.
  • Open 24/7, so a midnight lockout or a failed lock at dawn gets the same attention as a daytime call.
  • In business since 1987, with David Shar leading the work and decades of experience across residential, automotive and commercial locks.
  • Comfort with finish-sensitive and high-end hardware, which matters in custom hillside homes where a careless entry can scar a brass or custom finish.
  • Plain explanations of your options before work starts, including when rekeying makes more sense than replacing.
  • Capability to handle both the home and the business side: smart deadbolts and patio multi-point locks, plus aluminum-storefront commercial cylinders.

Emergency Locksmith across Diamond Bar

Diamond Bar is a hillside suburb built out mostly between the 1960s and 1980s, and its housing shapes the calls we get. Two-story tract and semi-custom homes with attached garages are everywhere, from the 91765 side near Diamond Bar Blvd and Golden Springs Dr to the 91789 side toward Grand Ave. Many of those original deadbolts are decades old and can stiffen or stop retracting in summer heat, while smart deadbolts are showing up more often and bring their own battery and keypad failures.

The Country Estates is a different kind of job. It is a guard-gated enclave of large hillside custom homes with keypad gates, high-end entry hardware and multi-point patio-door locks. A lockout there can mean working the perimeter gate and then a high-security front door without marring the finish. In Pathfinder, the Sunset Crossing area and the Summitridge area, we more often see tract-home deadbolts, garage entry doors and sliding patio locks that need rekeying or replacement.

Commercial needs are more limited here, mostly strip centers like Diamond Hills Plaza and office parks near the SR-57/SR-60 interchange at Grand Avenue. A tenant who snaps a key in an aluminum-storefront lock after hours needs extraction and a new cylinder, and we come to the door to do it. Whether you are near Sycamore Canyon Park, the Diamond Bar Golf Course or along SR-57, call (323) 997-8867 any time.

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 emergency locksmith page.

Emergency Locksmith in Diamond Bar — FAQs

Do you really work 24 hours a day in Diamond Bar?
Yes. Crenshaw Lock Company is available 24/7, including nights, weekends and holidays. Call (323) 997-8867 and we will dispatch a mobile technician to your location.
Do I need to come to a shop?
No. We are fully mobile and have no storefront. Every service, from lockouts to rekeying to cylinder replacement, is done at your home, vehicle or business.
Can you get into a gated home in The Country Estates?
Often, yes. We are used to working keypad gates and high-security entry locks while protecting finish hardware. Call (323) 997-8867 and tell us about the gate and the front door so we can prepare.
My deadbolt won't turn in hot weather. Is that an emergency?
It can become one if it locks you out or traps you in. Worn deadbolts in older tract homes commonly stick with heat and wear. We can rekey or replace it on site so it works reliably.
Will you drill my lock?
We try non-destructive methods first. Drilling is a last resort, and we will explain why before doing it and what replacement hardware would be needed.
What if a key breaks off in my office lock after hours?
We can extract the broken piece from a commercial cylinder and, if the cylinder is damaged, install a new one so the suite is secure. Call (323) 997-8867 and tell us the lock type and location.
Do you need proof that I live here?
Yes, we ask for reasonable verification of residence, vehicle ownership or authorization for a business before opening anything. It protects you and your property.
How is the cost of an emergency call determined?
It depends on the lock type, whether entry is non-destructive, the hour, travel, and whether you need repair, rekeying or replacement. We explain the factors and options before starting work.
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