Bellingham Mailbox
Specialty mailbox retailer and installer based in Bellingham, WA.
We offer secure mailboxes, parcel mailboxes, posts, and accessories online, with professional installation available throughout Northwest Washington. Bellingham Mailbox is a local business specializing in high-security locking mailbox installations, post replacements, and custom mounting solutions. We combine quality craftsmanship with durable materials, every install is carefully measured, leveled, and reinforced to ensure long-term stability and protection. Serving homeowners, property managers, and builders across Whatcom County, we help improve both mail security and curb appeal with professional, USPS-approved solutions built to last.
09/29/2026
🔨 DIY You can do it!
How to install the dVault Full Service Vault, full length video on our YouTube channel (link in bio)
Installation complete 📬📦
We installed a dVault Full Service Vault, a heavy-duty column mailbox designed to securely receive both everyday mail and package deliveries.
The upper compartment receives everyday letter mail just like a traditional mailbox. The lower parcel compartment accepts packages up to 16.9″ W × 9.25″ H × 12″ D, helping keep deliveries secure and out of sight when you’re away from home.
For homeowners looking for more than a traditional locking mailbox, a parcel mailbox like the dVault provides added package capacity and security while creating a clean, built-in look at the curb.
Save $200 in under 5 minutes 🔐📬
Lost the keys to your Cluster Box Unit (CBU) mailbox? Before paying someone to replace the lock, you may be able to do it yourself.
In this video, I show you step-by-step how to replace a mail door lock on a CBU mailbox when the keys are lost or the lock simply needs to be replaced.
🔐: The face of the lock is marked with the part number. Order it ahead of time.
🧰: 1/2” socket, ratchet, and pliers
Save this video, you’ll have it if those mailbox keys ever disappear.
One detail worth considering when purchasing a new mailbox is how you’ll retrieve your mail.
These mailboxes feature both a locking front door and a locking rear access door. Rear access can be especially useful along busier roads because it allows you to retrieve your mail while staying out of traffic and maintaining better sightlines for approaching vehicles.
Rear access isn’t necessary for every installation, but it’s an important feature to consider for your property. Mailboxes are available with front access, rear access, or both front and rear access like these. Your mail carrier still delivers mail from the front, you have options for retrieval.
These mailboxes also come standard with laser cut house numbers on both sides. Because these two boxes sit next to each other on a shared post, we removed the house numbers from the inside facing sides for a cleaner finished appearance.
And why is one mailbox Firecracker Red and the other Arctic Blue?
This new construction includes a primary home and an ADU, and each mailbox was selected to match the front door of its respective home. A small detail that helps tie the entire property together.
Wall mount mailbox installation complete 📬
The code for the existing mailbox had been forgotten so replacement was necessary. But the old mailbox was also undersized for this multi-bedroom rental property, creating a great opportunity to upgrade to a high quality locking mailbox with more mail capacity.
As part of the installation, we provided the property manager with the serial number for the mailbox keys. If a key is ever lost, they can order a replacement directly from the manufacturer, no need to call us or hire a locksmith.
Maybe this isn’t the best business model… because we’re trying to make sure you don’t need to call us again. 😂
When we install locking mailboxes for property managers, we document the serial number for each mailbox key and provide that information to the customer.
Why does that matter? If a tenant loses a key or an extra key is needed, the property manager can use the key serial number to order a replacement directly from the manufacturer, no locksmith, no lock replacement, and no service call from us.
6. Building BellinghamMailbox.com 📫
Mailbox installation complete 📬
I removed the existing mailbox post and surface-mounted a new heavy-duty mailbox post, followed by a Mail Boss Mail Manager locking mailbox.
There was quite a bit of moss built up around the base of the old post, so I also took the time to remove it and clean up the surrounding sidewalk before wrapping up the installation.
09/06/2026
📫 After & before
Which one do you prefer?
How do locking mailboxes work?
A locking mailbox allows your mail carrier to deliver letters, envelopes, and in some cases packages through an incoming mail door or slot. Once delivered, the mail drops into a locked compartment that can only be accessed with a key.
Not all locking mailboxes provide the same level of security. Higher-quality models often use heavier-gauge metal, premium locks, and are consciously designed to resist prying and forced entry.
Locking mailboxes are available in post-mounted, wall-mounted, and package mailbox designs.
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Bellingham, WA
98225-98229
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