Prioritize customs and bonded warehousing experience, proven cross-dock and cross-border routing, technology integration (WMS/APIs/EDI), SLA adherence, carrier mix, and value-added services like kitting and returns. Verify onsite customs brokerage and a documented process for TS/ACI filings to minimize border delays.

Windsor typically offers competitive warehouse rents and a reliable labor pool relative to core U.S. border metro areas, with lower operating costs than many U.S. metros. Evaluate local wage rates, labour availability by shift, equipment costs, and any regional incentives that affect total landed operating expense.

Key links include the Ambassador Bridge and Detroit‑Windsor Tunnel for truck freight, connections to the Ontario 401/402 corridors, and CN/CP rail access for long-haul and intermodal moves. Assess carrier network density for common lanes, cross-border dray capacity, and access to major parcel carriers for DTC fulfillment.

Look for an enterprise-grade WMS with API/EDI connectivity, real-time inventory visibility, lot/serial and batch tracking, returns management, kitting/assembly, light assembly, and quality inspection. Ensure SLA reporting, forecasting support, and scalable labor/automation options are available.

Confirm the 3PL operates bonded or customs-cleared facilities, has certified customs brokers, and documents experience with duty and tariff management, ACI/TS filings, and export controls. Review incident history, average clearance times, and whether they manage pre-clearance and harmonized tariff code validation.