Commercial Mailbox Installation
Turnkey commercial mailbox installs with USPS coordination and inspection sign-off.
View service →Mailbox services in San Diego County
Mailbox services
Turnkey installation, replacements, and repairs for commercial mailbox systems with USPS coordination and inspection sign-off.
CBU Installation
USPS-approved Cluster Box Unit (CBU) installs for HOAs, apartments, and commercial sites.
View service →
4C Wall-Mounted Mailboxes
Interior/exterior 4C wall-mounted or recessed systems with rough-opening coordination and ADA compliance.
View service →
Parcel Lockers
Add secure parcel lockers compatible with existing CBU/4C setups to reduce package pileups.
View service →
Repairs & Lock Changes
Door/lock replacements, vandalism remediation, and compartment fixes with fast turnaround.
View service →
ADA-Compliant Installs
Mailroom build-outs and height/clearance checks for ADA and USPS specifications.
View service →
Mailbox Replacement & Retrofits
Remove and replace aging units; pads, pedestals, labeling, and USPS handoff.
View service →
Mailbox Relocation & Consolidation
Move or consolidate units, pour/patch pads, update addressing, and coordinate USPS changeover.
View service →Popular service areas
Find mailbox services in your city across San Diego County.
Why Postal Systems for mailbox services?
Local, USPS-approved contractor with turnkey installation and replacement for commercial properties.
USPS Approved
We coordinate USPS approvals and inspection sign-off.
Licensed & Insured
Licensed, bonded, and insured in California. CA Lic. #904106.
Turnkey Installs
Layouts, pads, anchors, tenant notice, USPS coordination, and sign-off.
Warranty & Support
Hardware-backed warranty with responsive local support.
Our installation process
From site visit and layout through USPS sign-off, we handle every step of your mailbox project.
Step 1
Site visit & layout
Assess location, layout, ADA clearances, and USPS requirements.
Step 2
Detailed quote
Transparent scope, hardware, labor, and schedule.
Step 3
Schedule & tenant notice
Coordinate timing and tenant communication to minimize disruption.
Step 4
Installation
Pads, anchors, secure mounting, labeling, and lock work.
Step 5
USPS inspection & handover
We coordinate USPS inspection, obtain sign-off, and deliver keys.
Get a USPS-approved quote
Fast, compliant installs with inspection sign-off.
Mailbox planning resources
Helpful guides for boards and managers planning compliant upgrades.
Top city + service pages
Jump directly to high-intent service pages in priority San Diego County cities.
- Commercial Mailbox Installation in San Diego
USPS-approved commercial mailbox installation for HOAs, apartments, and commercial sites in San Diego.
- CBU Installation in San Diego
Cluster mailbox installation and replacement with USPS coordination in San Diego.
- 4C Wall-Mounted Mailboxes in San Diego
4C mailbox installations for multifamily and mixed-use properties in San Diego.
- Mailbox Replacement in San Diego
Mailbox replacement and retrofit scopes for aging or vandalized equipment in San Diego.
- CBU Installation in Chula Vista
USPS-aligned CBU installation and replacement in Chula Vista communities.
- 4C Wall-Mounted Mailboxes in Oceanside
4C mailbox layout and installation projects for Oceanside multifamily properties.