Every project follows the same disciplined five-gate sequence. No shortcuts. No coordination gaps. One contractor accountable for the complete scope — from the first USPS alignment call to the final key handover.
On-site survey of existing infrastructure. Compliance gap analysis against current USPS STD-4C and ADA requirements. Photographic documentation of existing conditions. Direct consultation with the local postmaster to confirm delivery requirements, establish the approval pathway, and prevent post-installation service rejection. Developers building new communities must secure USPS Growth Manager approval before submitting plats to county municipalities — we initiate and manage that process.
Concrete pad engineering based on site conditions and soil load requirements. ADA pathway verification and clear floor space calculation — minimum 5% of compartments must fall within the 15"–48" AFF unobstructed reach range. Permit preparation and submittal. Product specification matching community requirements against USPS-approved unit configurations. Full documentation package developed before a single shovel enters the ground.
Extract, haul off, and legally dispose of old, decaying, or non-compliant mailbox systems. Structural concrete pour with reinforcement — minimum 4-inch-thick, steel-reinforced pad that exceeds local soil shift limits. Precision anchor bolt placement for hardware mounting, wet-set to engineered specifications. Cure verification before proceeding to installation — structural permanence is non-negotiable. We do not move forward until the foundation passes.
Hardware mounting to engineered specifications using professional wedge stud anchors on existing pads or wet-set L-bolts on fresh concrete. All hardware uses high-grade stainless steel and aircraft aluminum rated for Sonoran Desert heat extremes. Level verification across all units. Security mechanism testing. Full mechanical function check on every door, lock, and access point before proceeding to USPS certification. No unit ships to the next gate with an open deficiency.
USPS postmaster walk-through and inspection. Physical installation of the postmaster's master Arrow Lock, coordinated with the local post office — lock height must fall within 36"–48" AFF per STD-4C standards. Final compliance documentation package. Project sign-off and warranty activation. Three pristine individual tenant keys per compartment delivered to the building manager. Complete project file — photos, permits, compliance reports, warranty certificates — delivered in writing before the job is closed.
The compliance review is free. We assess your existing infrastructure, identify every regulatory gap, and deliver a written scope before any contract is signed.