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Crenshaw Lock

Key Duplication in La Puente · 24/7 mobile

Key Duplication in La Puente, California

Crenshaw Lock Company provides mobile key duplication in La Puente, California, cutting and copying house, office, mailbox and restricted keys at your door. We are available 24/7 with no storefront to visit. Call (323) 997-8867 and tell us what keys you need copied and where you are.

  • Mobile to your La Puente 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 think of key duplication as a quick trip to a hardware counter. In La Puente that trip often means a drive down Valley Boulevard or Hacienda Boulevard, a wait in line, and a handful of copies that turn out to be slightly off and stick in the lock. Our service skips that. We are fully mobile, so the key machine, blanks and tools come to your driveway, your office or your rental property.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar has spent decades on the kinds of locks found around La Puente. Much of the city is made up of single-story stucco tract homes from the 1950s and 60s. Many still have original or builder-grade locksets and aging deadbolts, and a copy cut from a worn key tends to inherit the wear. We check the lock itself, not only the key, so a new copy actually works smoothly.

We handle standard house keys, office and storefront keys, mailbox keys and restricted keyways. We are available around the clock, which matters when you discover at night that the only key to your converted-garage unit is missing. If a duplicate is not the right answer because a lock is failing, we will say so and explain the options.

How it works in La Puente

  1. 1

    Call and describe what you need

    Phone (323) 997-8867 and tell us what you want copied: a front door key, a deadbolt key, a mailbox key, an office key or something stamped with a restriction. Let us know how many copies you need and which La Puente address we are coming to.

  2. 2

    We come to you

    Because we are mobile only, there is nothing to drive to. A technician arrives with a key machine, a range of blanks and hand tools. We work wherever is convenient, whether that is your driveway off Amar Road, your office suite or your rental.

  3. 3

    Identify the key and the lock

    We look at the key type, the keyway and the condition of the original. Worn keys from older tract-home locksets can produce poor copies, so we test the lock as well. If the cylinder is gummy or the deadbolt sticks, we point it out before cutting anything.

  4. 4

    Cut and fit the copies

    We cut each copy on location, then deburr it and test it in the actual lock. A duplicate that only looks right is not good enough. It should turn smoothly, without forcing, and retract the bolt fully.

  5. 5

    Handle restricted keys properly

    Restricted keyways are controlled for a reason. For these keys we follow the verification process required for that system, which may include authorization or proof of ownership. If a key cannot be legally copied, we explain the alternatives, such as rekeying.

  6. 6

    Final check and a clear wrap-up

    We test every new key one more time, confirm the original still works, and review what we found. If a lock is near the end of its life, we tell you plainly and let you decide.

Need key duplication in La Puente?

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 key. A basic house key is a different job from a high-security, dimple or restricted key that needs specialized blanks or verification.
  • How many copies you need, since a handful of keys for a household or a keyed-alike property is a different scope from a single spare.
  • Whether the original key is worn. A badly worn key may need to be re-cut or the lock may need servicing before copies will work well.
  • The time of day. Because we are available 24/7, after-hours and holiday calls can be priced differently from daytime appointments.
  • Whether the lock itself needs attention, such as a sticking deadbolt, a sun-warped door alignment or a failing cylinder, in addition to the copies.
  • Your location within our service area and how many separate stops the job involves, such as a main house plus an ADU.

Why La Puente chooses us

  • Fully mobile. Copies are cut at your property, so you do not have to leave a locked-up business or a house you cannot secure.
  • In business since 1987, with David Shar leading the work and familiar with the older locksets common in La Puente tract homes.
  • We test copies in the real lock instead of handing them over untested, which avoids the stuck-key problem common with quick counter duplicates.
  • We are candid when a duplicate will not solve the problem. If a worn lock or a sticking deadbolt is the cause, we say so rather than just cutting more keys.
  • Experience with keyed-alike setups for owners who need one key to work across a main house and a converted-garage unit.
  • Available 24/7, so a lost spare or a missing office key does not have to wait for store hours.

Key Duplication across La Puente

La Puente is a dense, working-class suburb in the San Gabriel Valley, and its housing shapes the key work we do. In neighborhoods like Hudson and Sunset, and on the Valinda and Bassett sides of town, you will find rows of 1950s and 60s single-story stucco homes on modest lots. Many have their original or builder-grade entry locksets, and after decades of use and Southern California sun, a sun-warped door can make a deadbolt stiff enough to bind the key. We often find that the real fix is a small alignment adjustment or a fresh lockset, plus properly cut copies.

Extra doors are another local pattern. Scattered 1970s apartment buildings and many ADUs or converted garages mean that a landlord may need the main house and the unit on keyed-alike or separate keying after a tenant change. We can duplicate keys for each door, advise on whether rekeying makes more sense and keep the keys organized. This work comes up often around 91744 and 91746, and we also serve 91747.

On the commercial side, Valley Boulevard and Hacienda Boulevard are lined with aluminum-storefront retail and small strip malls. Shop owners there need duplicate keys for storefront doors, back rooms and mailboxes, and sometimes a cylinder swap when a storefront deadbolt or pivot fails. Whether you are near La Puente Park, close to The Donut Hole, or just off I-10, SR-60 or Amar Road, we come to you. Call (323) 997-8867 any hour.

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 La Puente locksmith services

See all of our La Puente services, or our citywide key duplication page.

Key Duplication in La Puente — FAQs

Do I have to come to a shop to get keys copied in La Puente?
No. Crenshaw Lock Company is fully mobile and has no storefront. We bring the equipment to your home, business or rental in La Puente. Call (323) 997-8867 to arrange it.
Can you duplicate keys at night or on weekends?
Yes. We are available 24/7, including nights, weekends and holidays. Call (323) 997-8867 and describe what you need. After-hours calls may be priced differently from daytime work.
Can you copy a key marked Do Not Duplicate?
That marking is not always legally binding, but restricted keyways are controlled systems. We follow the verification the system requires and may ask for proof of authorization. If we cannot copy it, we will explain alternatives.
My deadbolt is sticking and the key barely turns. Should I just copy the key?
Not yet. In older tract homes, a sticking deadbolt is often caused by a warped door, a misaligned strike or a worn cylinder, not just the key. We will check the lock first so new copies do not make things worse.
Can you make keyed-alike keys for a house and an ADU?
Yes. We can set up the main house and a converted-garage unit so one key works on both, or keep them separate if you prefer. This is common after a tenant change. Call (323) 997-8867 to discuss it.
Do you copy mailbox keys?
Yes. We cut mailbox keys on location for homes, apartment buildings and small businesses. Some systems have restrictions, so we may need to verify the situation first.
Can you duplicate commercial keys for a Valley Boulevard storefront?
Yes. We copy storefront, back room and office keys, and can swap a failed storefront cylinder if needed. Tell us about the door when you call.
How is the price determined?
It depends on the key type, number of copies, condition of the original, time of day, whether the lock needs service and your location. We explain the factors and the cost before starting the 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