Upgrading From a Shared Mailbox Post to a Dedicated Locking Mailbox Installation

Bellingham Mailbox

It’s extremely common to see two, three, or even four mailboxes mounted together on a single shared mailbox post. Over time, those shared structures can start to deteriorate from weather exposure, age, and repeated vehicle impacts.

In many neighborhoods, homeowners simply continue using the existing setup even when the post itself is no longer in great shape because replacing only the mailbox feels easier than replacing the entire structure.

That’s especially common when one homeowner wants to upgrade to a locking mailbox while neighboring homeowners do not.

The Challenge With Shared Mailbox Posts

One of the more difficult parts of shared mailbox structures is coordination.

Sometimes neighbors work together and decide to split the cost of upgrading the entire mailbox post structure. Other times, one homeowner may want a more secure mailbox while neighboring homeowners either:

  • Don’t see the same issue
  • Aren’t interested in upgrading
  • Or simply aren’t in a position to contribute financially

This tends to happen more often in neighborhoods without HOAs, where there’s no formal structure for coordinating shared property improvements.

In situations like this, homeowners often assume they’re stuck with the existing mailbox setup but that’s not always the case.

Breaking Away From a Shared Mailbox Post

If you want to upgrade your own mailbox without replacing the entire shared structure, one option is to break away from the existing post and install a dedicated mailbox post for your own mailbox.

There are a few important things homeowners should know before doing this.

1. Always Check With Your Local Post Office

Before relocating or separating a mailbox from a shared structure, it’s important to confirm the plan with the post office responsible for your mail delivery.

Even though you may be installing a new post, that doesn’t necessarily mean the mailbox can be moved very far from its original location.

USPS delivery routes are designed for efficiency, and mailbox placement matters. In many cases, the new mailbox needs to remain very close to the original location.

2. Mailbox Sequence Matters

Another thing many homeowners don’t realize is that mail is often sorted in sequence based on the mailbox order along the route.

If removing your mailbox from the shared structure changes the order or sequence of delivery, it’s worth confirming with the local postmaster beforehand to avoid any delivery issues.

This Installation: One Neighbor Upgrades, One Does Not

For this project, one homeowner wanted to invest in a dedicated high-security locking mailbox while the neighboring homeowner decided to keep the existing setup.

The original shared mailbox structure had clearly been repaired multiple times over the years after being struck by vehicles. The post had patches and reinforcement added over time, but it had reached the point where the homeowner wanted a cleaner and more permanent solution.

To begin the installation, I used an angle grinder to carefully remove the existing mailbox from the shared structure. After cutting the mailbox free, I deburred the sharp metal edges to leave the remaining post safe and clean.

From there, I dug and installed a brand-new dedicated mailbox post adjacent to the original structure.

Once the post was secured, I installed a Mail Boss Mail Manager high-security locking mailbox to complete the project.

The Finished Result

The final result gave the homeowner exactly what they were looking for:

  • A dedicated mailbox post
  • A more secure locking mailbox
  • A cleaner appearance
  • An upgraded installation without requiring neighbor participation

The original shared mailbox structure remained in place for the neighboring mailbox, while the new installation stood independently beside it.

For homeowners dealing with aging shared mailbox posts, this can be a great solution when coordinating a full replacement with neighbors isn’t practical.

Watch the Full Installation Video

Want to see the full installation process from start to finish?

Watch the YouTube installation video here:
https://www.youtube.com/watch?v=PsKm6t3BNzw

The Mail Boss Mail Manager mailbox featured in this project is also available through our online store:
https://bellinghammailbox.com/collections/post-mount-mailboxes/products/mail-manager%C2%AE