Can you replace the lock on a cluster mailbox (CBU)?

We do, but cluster and 4C units belong to the property or HOA, so we'll need authorization from the owner or manager. Once that's confirmed, we replace the compartment lock on site.

My key broke off inside the mailbox lock. What now?

Don't force it. We extract the broken piece if the lock is reusable, or drill the lock out and install a new one if it's seized.

Do you bring keys, or do I have to get them cut later?

We bring everything. The new cam lock comes with two cut keys, and we test them in front of you before we leave.

How fast can you get to my mailbox in North Dallas?

We're mobile and based in McKinney, so a tech usually reaches you in 20 to 30 minutes anywhere inside our roughly 35-mile service radius.

Mobile techs across North Dallas, open daily 8 AM–8 PM

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Mailbox Lock Replacement

Locked out of your own mailbox or holding a key that won't turn? We come to you and swap the lock fast.

Call (469) 712-5422Tap to call · 8 AM–8 PM Text for a free quote

Mailbox lock replacement is the on-site removal of a worn, broken, or keyless mailbox lock and installation of a new cam lock with fresh keys. Apex Locksmith handles single residential boxes, cluster units, and HOA/multi-unit mailboxes across North Dallas, with a flat price quoted before we start. A mobile tech comes to you, usually within 20 to 30 minutes.

Starting at

$65

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New cam lock installed and tested in your mailbox door
Two cut keys handed to you on the spot
Removal of the old or jammed lock, including drilling if it's frozen
Flat price confirmed before any work starts

Starting around $65; final price depends on lock type and whether the old lock has to be drilled out. Cluster and HOA boxes are quoted on site.

Simple & fast

How Mailbox Lock Replacement Works

Three steps from the call to keys in your hand. No shop visit, no waiting around.

1
Tell us your mailbox type
Call and let us know if it's a single curbside box, a wall-mount, or a cluster/CBU unit. We confirm the flat price and an arrival window before we roll out.
2
We come to you and pull the old lock
A mobile tech removes the worn or jammed cam lock. If the key snapped off inside or the lock is seized, we drill it out without damaging the door.
3
New lock in, keys in hand
We fit a fresh cam lock, test it open and closed, and hand you your new keys. The whole job usually takes a few minutes once we're on site.

Coverage

Mailbox locks we replace

Residential, multi-unit, and cluster mailboxes across North Dallas

Mailbox types we service

Single curbside and wall-mount boxesCluster Box Units (CBU)USPS-approved 4C wall unitsHOA and apartment mailbanksLocking security mailboxesVintage and replacement cam-lock boxes

Lock hardware we install

Standard mailbox cam locksReplacement USPS-style locksKeyed-alike cam locks for multiple boxesHigh-security disc and tubular cam locksCompartment and parcel-locker locksMaster-keyed cluster unit locks

Who we help

Homeowners who lost the only keyNew homeowners with no key from the sellerRenters and tenantsLandlords and property managersHOA boards and apartment officesAnyone with a broken or jammed key

Residential Locksmith

Related Services

House Lockout Rekeying Locks Smart Lock Installation

Good to know

Frequently Asked Questions

Yes. We can pick or drill the old lock open without harming the mailbox door, then install a new cam lock and hand you fresh keys.

Service area