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(323) 997-8867
Crenshaw Lock

Mailbox Lock Replacement in Lomita · 24/7 mobile

Mailbox Lock Replacement in Lomita, California

Crenshaw Lock Company provides mobile mailbox lock replacement and rekeying in Lomita, California, for residential, cluster and community mailboxes. We are available 24/7 and come to your home or building. Call (323) 997-8867 to describe your mailbox and get started.

  • Mobile to your Lomita 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 sticking, or a tenant moves out and nobody knows how many copies of the key are still around. In Lomita, where so many homes date from the 1940s through the 1960s, plenty of mailboxes have been in service for decades. The cams are worn, the finish is pitted by salt air drifting up from the coast, and the original keys have long since been copied and passed around.

Crenshaw Lock Company has been serving Greater Los Angeles and Ventura County since 1987, and mailbox work is a regular part of the specialty side of what we do. We replace and rekey locks on residential mailboxes, wall-mounted and cluster units at small apartment complexes, and community-style boxes. We are fully mobile, so there is no shop to drive to. We bring the tools and parts to your address, whether that is a single-family home off Narbonne Avenue or a multi-unit building along Lomita Boulevard.

One important note up front: the mail slot compartments in USPS-owned cluster or neighborhood delivery units are generally controlled by the Postal Service, not by the resident. We will tell you honestly which situation you have before we do any work, and we will not touch equipment that is not yours to modify. For privately owned boxes, including many at apartments, condos and private homes, we can usually replace the lock or rekey it so old keys no longer work.

How it works in Lomita

  1. 1

    Call and describe the mailbox

    Call (323) 997-8867 any time, day or night. Tell us what kind of box it is: a standalone residential box, a wall-mounted unit, a cluster box at a complex, or something else. Photos or a make and model name, if you can find them, help us bring the right cylinders.

  2. 2

    Confirm who owns and controls the box

    Before we start, we work out whether the box is privately owned or belongs to the Postal Service. If it is a USPS-controlled unit, we will explain that the postal carrier or local post office handles access and lock changes. We only work on locks you or your property owner are entitled to change.

  3. 3

    Verify authorization

    For apartment complexes and shared boxes, we ask for confirmation that you are the owner, manager or an authorized resident. For your own home mailbox, it is usually as simple as showing that you live at the address.

  4. 4

    Remove the old lock or cylinder

    We take out the worn or compromised lock carefully so we do not damage the door or housing. If the key is lost, we can usually open the box without destroying it. On older, rusted units, we work to preserve the box where practical.

  5. 5

    Install and rekey the new lock

    We fit a replacement lock matched to your box, or rekey the existing cylinder when it is still in good shape. New keys are cut so that every previous key stops working, which matters after a tenant moves out or a key goes missing.

  6. 6

    Test and hand over keys

    We test the lock several times with every key, check that the door closes and latches smoothly, and hand over the keys. For multi-unit jobs, we label or organize the keys by unit so the manager can keep clean records.

Need mailbox lock replacement in Lomita?

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 basic residential box, a wall-mounted unit and a multi-compartment cluster box all call for different hardware and different amounts of labor.
  • Whether the existing lock can be rekeyed or has to be fully replaced, which depends on the condition of the cylinder and the availability of a matching part.
  • The number of locks involved, since rekeying several boxes at one complex in a single visit is handled differently from a single home mailbox.
  • Whether the key is lost and the box needs to be opened first, which can add steps compared to a simple swap.
  • The age and condition of the box, including rust, bent doors or worn cams that may need extra attention to function properly.
  • The time of day or night you call, since we are available 24/7 and after-hours service can be priced differently from a daytime appointment.

Why Lomita chooses us

  • Fully mobile service: we come to your Lomita address with parts and tools in the van, so you are not sent to a storefront, because we do not have one.
  • In business since 1987, with owner and lead technician David Shar leading the work, so you get experience with older hardware common in post-war housing.
  • Honest about USPS equipment: we tell you plainly when a box is controlled by the Postal Service and we will not tamper with it.
  • Experience with small apartment buildings: we can rekey mailboxes together with unit doors or a laundry-room padlock in one visit, which suits managers handling tenant turnover.
  • Available 24/7, so a lost key or a jammed mailbox lock does not have to wait for business hours.
  • Clear explanations before work begins, including whether rekeying or full replacement makes more sense for your box.

Mailbox Lock Replacement across Lomita

Lomita is a compact city of about 1.9 square miles, incorporated in 1964, and its housing shows it. Around the Narbonne Avenue corridor and the streets feeding off it, you find modest 1940s through 1960s single-family homes where the mailbox, front door deadbolt and garage lock were often installed in the same era. When we are called to one of these properties for a mailbox lock, it is common for the owner to also ask about worn exterior deadbolts or keying the house alike with a detached garage. We are glad to handle all of it in one trip.

Along Lomita Boulevard and through the City Center area, small apartment complexes from the 1960s through the 1980s are a big part of the picture. Managers there deal with tenant turnover constantly, and mailbox keys are easy to overlook when a unit changes hands. Rekeying the mailbox along with the unit door means a former tenant cannot keep collecting mail with an old key. In Harbor Hills, closer to the Palos Verdes foothills, we see a mix of older homes and some legacy larger parcels where mailboxes sit at the curb or at a gate and take plenty of weather.

Whether you are in ZIP code 90717 near Lomita Park, a few blocks from the Lomita Railroad Museum, or along Pacific Coast Highway, Western Avenue or Narbonne Avenue, we come to you. Lomita is also the gateway to the Palos Verdes Peninsula, so we are sometimes asked to help residents of nearby gated communities with lost mailbox or gate keys. Call (323) 997-8867 and we will sort out what applies to your situation.

Locked out or need a locksmith now?

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Other Lomita locksmith services

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

Mailbox Lock Replacement in Lomita — FAQs

Can you replace the lock on my mailbox in Lomita if I lost the key?
Usually, yes, as long as the box is privately owned and you can show you live at the address or manage the property. We can open the box, then replace or rekey the lock so the lost key no longer works. Call (323) 997-8867 to describe your box.
Can you change the lock on a USPS cluster box?
Not if it is a USPS-controlled unit. In those cases, the Postal Service handles lock changes and access, and you would contact your local post office. We will tell you honestly if that is what you have. Privately owned cluster boxes at apartments and condos are a different matter, and we can often help.
Is rekeying better than replacing the lock?
If the cylinder is in good shape and a proper match is available, rekeying is often enough and keeps the existing hardware. If the lock is worn, damaged or rusted, a full replacement is more reliable. We look at it on site and tell you which makes sense.
I manage an apartment building on Lomita Boulevard. Can you rekey mailboxes between tenants?
Yes. Many managers have us rekey the mailbox along with the unit door and sometimes a laundry-room padlock in the same visit. We can organize the keys by unit so your records stay tidy. Call (323) 997-8867 to talk through the number of units.
Do I need to be home for the work?
For your own home mailbox, we do need someone present or authorization to work, especially if the key is lost. For multi-unit properties, a manager or authorized representative can approve the job on behalf of the owner.
Do you offer mailbox lock service at night or on weekends?
Yes. Crenshaw Lock Company is available 24/7 and fully mobile, so you can call (323) 997-8867 at any hour. Some mailbox jobs are less urgent and are easy to schedule during the day, but the option is there.
Can you also help with other locks at my Lomita home while you are there?
Yes. Many owners of older homes near Narbonne Avenue ask us to look at worn exterior deadbolts or to key the house alike with a detached garage during the same visit. Let us know when you call and we will plan for it.
What if my mailbox is old and rusted?
Older boxes, especially those exposed to coastal air, can have stiff doors or corroded cams. We try to restore function without damaging the box. If the housing itself is failing, we will explain the options, which may include replacing the box.
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