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Crenshaw Lock

Lock Replacement in San Dimas · 24/7 mobile

Lock Replacement in San Dimas, California

Crenshaw Lock Company provides mobile lock replacement in San Dimas, California, 24/7. We come to your home, barn, gate or business and swap worn, damaged or outdated locks for new hardware matched to your needs. Call (323) 997-8867 to talk through your door and lock situation.

  • Mobile to your San Dimas 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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Locks do not last forever. A deadbolt that has turned stiff, a knob that wobbles in the door, a key that only works if you jiggle it just right: these are signs that the hardware is wearing out, and a lock that is failing tends to fail at the worst time. Replacing it before it strands you outside is usually simpler and cheaper than an emergency call later.

San Dimas has a real mix of buildings, and that shapes what a good replacement looks like. Many homes are ranch-style single-family houses from the 1960s and 70s, some of which still carry original hardware or a patchwork of locks installed by several owners over the decades. Larger lots near San Dimas Canyon and Bonelli Park often have barns, outbuildings and gated drives that rely on padlocks and exposed hardware. Each of these calls for a different choice of lock.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are fully mobile, so there is no storefront to drive to. We come to you, look at the door or gate, talk through the options, and install new locks on site. If rekeying the existing hardware would solve your problem for less, we will tell you that as well.

How it works in San Dimas

  1. 1

    Tell us what is going on

    Call (323) 997-8867 and describe the problem: a sticking deadbolt, a lock that was damaged in a break-in attempt, a house with keys you cannot account for, or a gate padlock that has rusted through. This helps us bring the right hardware.

  2. 2

    We come to you

    We are 24/7 and fully mobile, so the work happens at your property, whether it is a front door in Via Verde, a barn door off a canyon road or a shop entrance downtown.

  3. 3

    Inspect the door, frame and existing lock

    Before swapping anything, we check the door prep, the strike plate, the latch alignment and the condition of the frame. A new lock on a misaligned or damaged door will not work well, so we point out anything that needs attention.

  4. 4

    Choose the right replacement

    We go over options such as deadbolts, knob and lever sets, smart-ready hardware, and weather-resistant padlocks for outdoor use. We also consider whether you need keyed-alike locks so one key works throughout the property, and whether your HOA has hardware requirements.

  5. 5

    Install and test

    We fit the new hardware, adjust the strike and latch, and cycle the lock repeatedly from both sides. We confirm that every key works smoothly and that the door closes and locks without force.

  6. 6

    Hand over keys and explain care

    You receive your keys and a plain explanation of how to maintain the lock. We can also take the old hardware away if you prefer.

Need lock replacement in San Dimas?

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 deadbolt is a different job from outfitting an entire house or ranch property.
  • The type and grade of hardware you choose, from basic residential sets to higher-security deadbolts, smart-ready locks or heavy-duty padlocks for outdoor gates and barns.
  • The condition of the door and frame, because worn bores, damaged strike plates or splintered jambs may need repair before new locks sit correctly.
  • Whether you want keyed-alike locks, so one key operates several doors, or separate keys for each entry.
  • Whether the work is scheduled or an urgent call at night or on a weekend, since we are available 24/7 and the timing affects the visit.
  • Special requirements such as HOA-standard finishes, weatherproofing for exposed gates, or matching hardware already on the property.

Why San Dimas chooses us

  • Fully mobile service: we bring tools, hardware and know-how to your door, with no storefront trip.
  • In business since 1987, so we have seen the original hardware found in older San Dimas ranch homes and know how to work with it.
  • Honest recommendations. If rekeying will fix the issue, we will say so rather than push a full replacement.
  • Experience with rural-style properties, including padlocks, gate hardware and outbuilding locks that take weather and dust.
  • Comfortable working within HOA-standard hardware expectations, such as those found in planned communities like Via Verde.
  • Owner-led operation under David Shar, so you deal with an experienced locksmith, not a call-center script.

Lock Replacement across San Dimas

San Dimas has a character all its own, sitting at the foothills with the Foothill Freeway (I-210), the Orange Freeway (SR-57) and nearby I-10 making it easy to reach but still feeling a bit removed from the sprawl. In the 91773 ZIP code, you will find everything from tidy ranch homes along streets off San Dimas Ave and Arrow Hwy to larger lots where horses and outbuildings are part of daily life.

In Via Verde, the planned community on the southern hills, homes often follow HOA-standard hardware, and replacement is common after a purchase when previous owners' keys are unaccounted for. We can match finishes and styles so a new deadbolt looks like it belongs. Near San Dimas Canyon and the area around Frank G. Bonelli Regional Park and Puddingstone Reservoir, the work looks different: barn doors, tack rooms, gated drives and padlocks that have been through years of sun, dust and moisture. Replacing those with weather-appropriate hardware makes a real difference.

Downtown, Old Town San Dimas along Bonita Ave has its western-themed storefronts and small civic and retail buildings, where older doors and a handful of different locks are common. Whether you are a business owner updating worn hardware after a staff change or a homeowner a short drive from Raging Waters Los Angeles or San Dimas Canyon Park, we come to you at any hour. 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 San Dimas locksmith services

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

Lock Replacement in San Dimas — FAQs

How do I know if I need a lock replaced or just rekeyed?
If the lock works smoothly and is in good condition but you want different keys to work, rekeying is usually enough. If the lock is worn, sticking, damaged or outdated, replacement makes more sense. Call (323) 997-8867 and we will help you decide.
Do you offer lock replacement at night or on weekends in San Dimas?
Yes. We are available 24/7 and fully mobile, so we can come to your home, barn or business whenever you need us.
Can you replace padlocks and gate hardware on a horse property?
Yes. We work on barns, tack rooms, gates and outbuildings, and can recommend weather-resistant padlocks and hardware suited to outdoor exposure near San Dimas Canyon and similar rural lots.
I just bought a home in Via Verde. Should I replace the locks?
It is a smart step, since you cannot know who has copies of the old keys. Depending on the condition of the hardware, we may rekey or replace, and we can keep to HOA-standard finishes.
Can you make all my doors work with one key?
Often, yes. We can install keyed-alike locks so a single key opens multiple doors, which is handy for houses with several entries and for properties with outbuildings.
Will a new lock fit my older ranch-style door?
Usually. Most standard doors accept modern hardware. We inspect the bore, edge and frame first and tell you if anything needs adjusting for a proper fit.
Do you replace locks for businesses in downtown San Dimas?
Yes. We can replace locks at small retail and office spaces along Bonita Ave and the surrounding area. Call (323) 997-8867 to describe the doors involved.
Do I need to be home during the replacement?
We prefer someone be present so we can confirm the work and hand over keys. If that is not possible, call us and we can talk through the options.
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