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(323) 997-8867
Crenshaw Lock

Key Duplication in San Dimas · 24/7 mobile

Key Duplication in San Dimas, California

Crenshaw Lock Company provides fully mobile key duplication in San Dimas, California, available 24/7. We cut and copy house, office, mailbox and restricted keys at your home, ranch, or business, with no storefront trip needed. Call (323) 997-8867 to talk through what you need copied.

  • 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
Key cutting machine duplicating a brass key
Open now(323) 997-8867

Most people in San Dimas do not think about a spare key until the only one is missing, worn smooth, or sitting on a ring that just went through the wash. A copy made from a tired original often turns out a little off, and the lock tells you so by sticking, grabbing, or refusing to turn. Getting a clean duplicate from a good original, or from a lock we can read on site, saves a lot of frustration later.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are fully mobile. There is no shop to drive to. We come to you with the cutting equipment, so a copy can be made at the kitchen table, at the barn gate, or behind the counter of a downtown shop, and tested in the actual lock before we leave.

San Dimas has a real mix of properties: ranch-style homes from the 1960s and 70s, equestrian lots with outbuildings and padlocked gates, HOA hardware in Via Verde, and small retail buildings in Old Town. Each one calls for different keys and a different approach, and this page explains how duplication works for each.

How it works in San Dimas

  1. 1

    Tell us what you need copied

    Call (323) 997-8867 and describe the key: front door, deadbolt, mailbox, padlock, office, or something stamped with a restriction notice. A few details help us arrive prepared, such as how many copies you want and whether the key is the only one you have.

  2. 2

    We come to your location

    Because we are mobile and available 24/7, we travel to your house, ranch, or business in San Dimas. Bring the original key and any other keys on the ring you would like checked. We do not run a storefront, so everything happens on site.

  3. 3

    Inspect the original and the lock

    Before cutting, we examine the key for wear, bends, and damage, and we check how it operates in the lock. If the original is badly worn, we may recommend cutting from a better reference or looking at the lock itself so the copy does not inherit the flaws.

  4. 4

    Cut and finish the copy

    We cut the new key to match, then clean off burrs so it slides in smoothly and does not scratch your lock or chew up your pocket. Restricted keys follow their own authorization rules, and we will explain what is needed before we proceed.

  5. 5

    Test in the real lock

    Every copy is tried in the lock it belongs to, several times, locking and unlocking. If a copy binds or turns stiffly, we adjust or recut it rather than hand you a key that will fail on a bad day.

  6. 6

    Label and advise

    We suggest ways to organize your keys, such as a spare for a trusted neighbor or a separate set for the barn. If a lock is worn out or too many unknown copies are out there, we can talk about rekeying as a next step.

Need key duplication 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

  • Type of key: a standard house key differs from a high-security, dual-sided, or restricted-keyway key, which takes more equipment and care.
  • Number of copies: a single spare and a full set for a family or staff are quoted differently.
  • Condition of the original: a worn or bent key may need extra work or a different reference to produce a copy that works smoothly.
  • Restricted keys: these require verification and authorization, which can affect what we can cut and how long it takes.
  • Time of day: because we are available 24/7, an after-hours or weekend call may be priced differently from a daytime appointment.
  • Location and access: a trip to a remote lot near San Dimas Canyon or Bonelli Park may factor in differently than a central address.

Why San Dimas chooses us

  • Fully mobile: we bring the cutting equipment to you, so you never have to leave a barn, office, or house unattended to get a copy made.
  • In business since 1987 under owner and lead technician David Shar, with long experience across Greater Los Angeles and Ventura County.
  • We test every copy in your actual lock, which catches a poor fit before you are standing outside a door that will not open.
  • We handle the full range: house, office, mailbox, padlock, and restricted keys, rather than only the simple ones a hardware kiosk can cut.
  • We tell you honestly when duplication is not the right fix, such as when a lock is worn out or rekeying makes more sense.
  • Available 24/7, so a lost-key emergency does not have to wait for store hours.

Key Duplication across San Dimas

San Dimas feels different from the denser parts of the county, and its keys reflect that. Around San Dimas Canyon and the edges of Frank G. Bonelli Regional Park, larger lots and horse-keeping properties often have barns, tack rooms, outbuildings, and gated drives secured with padlocks. Those properties tend to accumulate many keys, and a missing barn or gate key is a real inconvenience. We can duplicate padlock and outbuilding keys on site, even on a property well off the main roads.

In Via Verde, the planned community on the southern hills, homes typically use HOA-standard hardware, and new owners often want extra copies after a purchase, or a rekey so previous keys no longer work. Downtown, the western-themed storefronts along Bonita Ave are small businesses and civic buildings where staff keys, back-door keys, and mailbox keys need copies without closing up shop. For a business in 91773, we can come to the counter rather than asking you to leave.

Whether you are near Puddingstone Reservoir, close to Arrow Hwy and San Dimas Ave, or just off the Foothill Freeway (I-210) or the Orange Freeway (SR-57), we travel to you. Call (323) 997-8867 any hour and tell us where you are in San Dimas.

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 key duplication page.

Key Duplication in San Dimas — FAQs

Do you duplicate keys at my home in San Dimas?
Yes. We are fully mobile, so we come to your house, ranch, or business in San Dimas and cut the copy there. Call (323) 997-8867 to set it up.
Can you copy a key at night or on a weekend?
We are available 24/7, including nights and weekends. Pricing may differ for after-hours calls, and we will explain that when you call.
Can you copy barn and gate padlock keys?
Yes. Equestrian and rural properties near San Dimas Canyon and Bonelli Park often have padlocked barns and gates, and we can duplicate those keys on site. If a padlock is worn or rusted, we can discuss replacing it.
I just bought a home in Via Verde. Should I copy keys or rekey?
Copying keys does not stop previous keyholders from using theirs. After a purchase, rekeying is usually the better step, and we can then cut the number of new copies you want.
Can you copy a key marked Do Not Duplicate?
Those markings are not always legally binding, but restricted keyways have authorization requirements. We will explain what is needed before cutting. Call (323) 997-8867 with the details.
Can you duplicate mailbox keys?
Yes, we can copy many mailbox keys. Some types, such as certain centralized community boxes, may have their own rules, so tell us what you have and we will advise.
My original key is worn. Will the copy work?
A copy of a worn key can inherit the wear. We inspect the original and may recommend another reference or working from the lock itself. We test the copy in your lock before we leave.
Do I need to come to a shop?
No. Crenshaw Lock Company has no storefront. All work is done on location in San Dimas, and you can reach us at (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