Bellingham Mailbox

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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.

10/24/2026

CBU mailbox installation tip: How to drill perfectly aligned concrete anchor holes. 
 
If you’ve ever installed a cluster box unit (CBU), you know the paper anchor bolt template isn’t ideal. It slides around, and the masonry drill bit can drift to throw off your hole locations. 
 
I built a metal drill jig to solve both problems. Instead of relying on a paper template, this rigid jig holds the hole locations and guides the drill bit perpendicular to the concrete. 
 
The result? Straight, accurately positioned anchor bolts that make mounting a cluster mailbox pedestal much easier. 
 

10/24/2026

📫 Leaning mailbox post? Installation tip 
 
Mailbox posts are often installed on uneven ground, alongside roadways, in ditches, or on sloping surfaces. Burial depth and the shape of the hole before pouring concrete are important to ensure your mailbox stays straight for years to come. 
 
Before purchasing a mailbox post, verify that it’s long enough to accommodate your required burial depth while still meeting USPS mailbox height specifications. 
 
A quality mailbox deserves a properly installed post. Getting the foundation right the first time prevents rework and gives you more time to focus on all your other home improvement projects (that have been assigned to you 😆).
 
✅ Burial Depth: A common installation depth is 16-24 inches, depending on soil conditions and terrain. 
 
✅ Freeze Thaw Conditions: In areas that experience ground freezing and thawing, aim for at least 24 inches

10/24/2026

Peace of mind for tenants and easy key management for property owners! 🔐📬 
 
This rental property upgraded from two non-locking mailboxes to two modern wall-mounted locking mailboxes, providing tenants with added security and protection against mail theft. 
 
One of the best features? Serialized keys. Each mailbox has a unique key number, allowing property managers and landlords to order replacement keys directly from the manufacturer. No trips to the locksmith or key shop required. 
 
A simple upgrade that improves security, reduces maintenance headaches, and makes life easier for both tenants and property owners.

10/22/2026

Million dollar homes, lake views…and a mailbox setup that’s beginning to grow 📬 
 
This neighborhood mailbox post has been added onto and modified to accommodate larger mailboxes over the years. While it still serves its purpose, there’s opportunity for something better.
 
A Cluster Box Unit (CBU) would offer several advantages: 
 
✅ Smaller footprint and cleaner appearance 
✅ Individual locking mail compartments 
✅ Secure outgoing mail 
✅ Locking parcel lockers for package deliveries 
✅ A modern design that complements the neighborhood 
 
A CBU mailbox installation was proposed in the past, but neighbors couldn’t reach an agreement. 
 
This is a common challenge in neighborhoods without a homeowners association (HOA). Shared mailbox upgrades require buy-in and getting everyone on the same page isn’t always easy. 
 
The current setup isn’t necessarily bad or falling apart. It’s functional. But when you’re surrounded by beautiful homes and lake views, why not have a mailbox setup that complements the neighborhood? 
 
What do you think? Would you replace this setup with a cluster mailbox?

10/04/2026

CBU mailbox maintenance ✅📬 
 
I might not sound excited but the tenants will be, with 4 more parcel lockers! 
 
This cluster mailbox needed quite a bit of attention. We installed 4 missing parcel locker doors, completed 5 rekeys, repaired mail doors that weren’t closing properly, and replaced several missing components. 
 
Repair work coordinated with USPS 🤝. Because access to the main cabinet of the mailbox is controlled by the Postal Service, a USPS associate met me on site and unlocked the unit so I could complete the necessary repairs. 
 

10/03/2026

The previous mailbox was completely destroyed, we installed a brand new replacement. Instead of making each resident deal with new keys, we transferred all of the existing locks from the damaged mailbox into the new one. 
 
Same locks. Same keys. Brand new mailbox. 
 
Small detail but it makes the replacement process much easier for everyone who uses the mailbox, no new keys to distribute and no need to update key records. 
 
The new installation turned out great and is ready to get back to work. 
 

🔨 DIY You can do it!  How to install the dVault Full Service Vault, full length video on our YouTube channel (link in bi...
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)  
 

09/26/2026

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.

09/25/2026

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.

09/22/2026

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.

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Bellingham, WA
98225-98229

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