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(323) 997-8867
Crenshaw Lock

Mailbox Lock Replacement in Glendora · 24/7 mobile

Mailbox Lock Replacement in Glendora, California

Crenshaw Lock Company provides mobile mailbox lock replacement and rekeying in Glendora, California, 24/7. We come to your home, cluster box or community mailbox and replace or rekey the lock on site. For service, call (323) 997-8867 any hour of the day or night.

  • Mobile to your Glendora location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Cluster mailboxes with a key in one mailbox lock
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A mailbox lock is easy to ignore until the key goes missing, the cylinder starts to stick, or you suspect someone else has a copy. In Glendora, where mail often holds bank statements, tax documents, prescriptions and new credit cards, a lock that no longer works is more than an annoyance. Replacing or rekeying it is usually a quick, inexpensive fix compared with the trouble of stolen or tampered mail.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar built the business on being fully mobile. There is no storefront to visit. We bring the tools and parts to you, whether you live in a foothill home in North Glendora, a post-war tract house in South Glendora, or near the historic blocks of Glendora Village.

We work on residential wall and post-mount boxes, locking cluster units in townhome and condo developments, and the lock cylinders used on many community mailbox setups. If you are not sure what kind of box you have, describe it or send a photo when you call (323) 997-8867 and we will tell you honestly what can be done. Some boxes controlled by the postal service or a property manager have their own rules, and we will point that out rather than guess.

How it works in Glendora

  1. 1

    Tell us about the box

    Call (323) 997-8867 and describe the situation: lost key, jammed cylinder, a recent move, or a possible break-in. Tell us whether it is a private box, a cluster unit or a community box so we can bring the right cylinders and parts.

  2. 2

    We come to you

    Because we are fully mobile and available 24/7, a technician drives to your Glendora address with tools and replacement hardware. There is nothing to drop off and no shop to visit.

  3. 3

    Inspect the lock and housing

    Before changing anything, we check the cylinder, the latch, the door and the mounting. Sometimes the lock is fine and the problem is a bent tab or worn cam, which is a simpler fix.

  4. 4

    Replace or rekey

    If the cylinder is damaged, corroded or unavailable in a matching style, we install a new one. If it is in good shape and you only need new keys, we rekey it so old keys stop working. We then cut working keys for you.

  5. 5

    Test and hand over keys

    We test the lock repeatedly with the new keys, confirm the door closes and latches smoothly, and make sure you leave with the keys you need. We also tell you if anything else on the box needs attention.

Need mailbox lock replacement in Glendora?

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 mailbox: a standard residential box, a cluster unit or a community box each use different cylinders and may take different amounts of work.
  • Whether the lock can be rekeyed or has to be fully replaced because of damage, corrosion or a broken cam.
  • How many locks need work, such as a single home box versus several boxes in a small complex.
  • The condition of the door and housing, since a bent door or damaged latch can add repair work beyond the cylinder.
  • How many keys you need cut and whether you want matching keys across several locks.
  • Time of day and location, since after-hours calls and hard-to-reach addresses can affect the overall cost.

Why Glendora chooses us

  • Fully mobile service since 1987, so the work happens at your mailbox instead of at a counter.
  • 24/7 availability, useful when you discover a problem after a late move-in or a suspected mail theft.
  • Honest assessment: we tell you when a rekey is enough and a new cylinder is not needed.
  • We can handle mailbox locks along with your other locks in one visit, from front-door deadbolts to higher-end hardware common in North Glendora.
  • Direct contact with a real local business owned and led by David Shar, not an anonymous dispatch line.
  • We are upfront about boxes that belong to the postal service or a property manager and may need their approval before changes.

Mailbox Lock Replacement across Glendora

Glendora covers a wide mix of homes, and mailbox needs vary with them. In North Glendora, foothill estates and custom hillside homes sit on long drives, and some are behind gates. Mailboxes there may be decorative, stone-mounted or set at the road, and owners often ask us to match the quality of the rest of their hardware. After Santa Ana wind season, grit and dust can foul small cylinders at the street, and a cleaning, replacement or rekey can restore smooth operation.

South Glendora is largely post-war single-family tract housing, where wall-mounted and curbside boxes have often been in place for decades. Original locks wear out, keys get passed around over the years, and a rekey after buying a home is a sensible way to make sure no former occupant still has access. Around Glendora Village, with its historic early-1900s buildings and boutique storefronts, we also see mail slots and small business boxes where a cylinder swap is more practical than replacing the whole unit.

We serve the 91740 and 91741 ZIP codes, getting around via Interstate 210, Route 66 (Alosta Ave and Foothill Blvd), Grand Ave, Glendora Ave and Lone Hill Ave. Whether you are near Citrus College, the Glendora Country Club, or the trailheads at Big Dalton Canyon, call (323) 997-8867 and we will come to you.

Locked out or need a locksmith now?

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

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Other Glendora locksmith services

See all of our Glendora services, or our citywide mailbox lock replacement page.

Mailbox Lock Replacement in Glendora — FAQs

Can you replace a mailbox lock if I lost the key?
Yes. We can open the lock if needed and install a new cylinder or rekey it so you have working keys. Call (323) 997-8867 and tell us what kind of box it is.
Do you service cluster and community mailboxes in Glendora?
We work on many cluster and community box locks, but some are owned or controlled by the postal service or a property manager. We will tell you what is possible and what needs their approval before we begin.
Is rekeying better than replacing the lock?
If the cylinder is in good condition, rekeying makes old keys useless at a lower cost than a full replacement. If the lock is corroded, damaged or jammed, replacement is the better choice. We will recommend one after inspecting it.
Should I change my mailbox lock after moving into a Glendora home?
It is a smart step. Previous owners, tenants or others may still hold keys. Rekeying or replacing the lock means only the keys you hold will work.
What if I think someone has tampered with my mail?
Secure the box as soon as you can and call us 24/7 at (323) 997-8867. We can replace the lock and check the door and latch for damage. You may also want to report mail theft to the postal service.
Do you come to North Glendora homes behind gates?
Yes. We are fully mobile and serve gated and long-drive properties in North Glendora. Let us know about gate codes or access arrangements when you call.
Can wind and dust damage a mailbox lock?
Yes. Grit from Santa Ana wind season can foul small cylinders and make keys stiff or sticky. Cleaning may help, but a worn cylinder is often better replaced or rekeyed.
Do I need to visit your shop?
No. Crenshaw Lock Company is mobile only, with no storefront. We come to your address, and the work is done on site.
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