Case Study · Video Walkthrough
Pacer Air Freight — 10,000 sq ft Medical-Grade Cold Storage Build, Mississauga
The Build
10,000 sq ft of medical-grade cold storage going up in Mississauga
Pacer Air Freight is in the middle of a major cold-chain build, and WFE is delivering the envelope: a 10,000 sq ft medical-grade cooler and freezer under one roof. What makes this one specific is where it sits, in the heart of the GTA's air-freight corridor in Mississauga, so the pharma cold chain it supports starts the moment product comes off the aircraft. The whole envelope is engineered to pharmaceutical spec from the first measurement forward.
Build Sequence
From empty shell to operational.
Moments from the build, in order. Each frame is a real WFE installation photo from the project.
Detail Gallery
Operational, in detail.
Two KeepRite SmartSpeed evaporators side by side on the same wall. Pharma-grade temperature stability requires multi-zone refrigeration sized to combined load.
KeepRite ESP+ SmartSpeed three-fan ceiling evaporator. Selected for the airflow profile a pharma-grade envelope needs.
Smaller pharma-grade compartment inside the larger envelope. Independent door, independent refrigeration, independent control.
Yellow protective sleeving around a building support column where the envelope wraps the existing structure. Built around the building, not against it.
WFE service-line sticker on every walk-in we build. A service-line cue for whoever inherits the equipment.
Smaller pharma-grade compartment with its own evaporator pair. Door open showing the dual-evap mount along the right wall.
KeepRite SmartSpeed two-fan evaporator. Each unit specced for the zone it serves.
Refrigeration lines routed in orange-sleeved conduit between evaporators and the rooftop condensing plant.
KeepRite ESP+ SmartSpeed control panel. The interface that holds pharma-grade temperature spec on this zone.
What's in the Build
Spec'd for the work.
Every component sized for the project's actual load, door-cycle profile, and shift volume. Nothing pulled from a catalogue.
A 10,000 sq ft medical-grade walk-in cold storage envelope rising in the heart of Mississauga. Sized for pharmaceutical-grade controlled storage at scale. Not a retail or food template scaled up, a build engineered against pharma cold-chain spec from day one.
Cooler and freezer zones inside the same envelope. Each zone independently controlled for the temperature band the pharmaceutical product line requires. Combined refrigeration plant sized to the full load.
Every panel cut measured for tight seams and consistent insulation across the full envelope. Pharma-grade temperature stability starts at the panel level. Gaps or inconsistent insulation get amplified into temperature drift, so the panel work is the first place the spec is held.
Once panels are measured and cut, WFE's in-house crew sets fast. Panels secured, sealed, structural fastening run as one continuous workflow. Closing in on full enclosure on the current update.
The finished envelope is sealed as an airtight container. Pharmaceutical cold storage requires temperature stability without ambient air exchange. The build is finished to that standard rather than a generic walk-in standard.
Refrigeration plant and evaporator distribution staged for installation once the envelope is fully sealed. Multi-zone evaporator network sized to the cooler-plus-freezer combined load.
Equipment Sourced From
Manufacturers listed are representative of WFE's standard build kit; exact units sized per project.
Outcome
How it landed.
WFE is delivering Pacer Air Freight's 10,000 sq ft medical-grade cold storage envelope in Mississauga as a sealed, airtight, pharmaceutical-spec build. Panel work measured and cut to tight-seam tolerance, fast in-house assembly across the cooler and freezer zones, and refrigeration plant coming online once the envelope is fully closed. The finished build will support pharmaceutical cold-chain operations starting the moment product moves through the facility.
Deep Dive
Panel precision is where pharma-grade temperature stability starts
Pharma-grade temperature stability starts at the panel level, which is why WFE keeps every step of this envelope in-house. Measuring, cutting, and sealing all run as one continuous workflow with no handoff between trades, so the tolerance the panel work sets on day one is the same tolerance the finished envelope holds.
Refrigeration plant detail
Multi-zone evaporator network sized to the combined cooler-plus-freezer load of the 10,000 sq ft medical-grade envelope. Three-fan ceiling-mounted evaporators across the larger zones, two-fan units in the smaller box-within-a-box rooms. Refrigeration plant staged for commissioning once the envelope is fully sealed. Defrost cycles to be staggered across zones so the system holds pharma-grade temperature spec under any combined-zone load condition.
Project FAQ
01 What does medical-grade cold storage mean for a 10,000 sq ft envelope?
Medical-grade (or pharmaceutical-grade) cold storage holds temperature to a tighter band than food cold storage and does it for product that cannot tolerate excursions outside spec. The envelope has to be airtight, the panel seams have to be consistent, the insulation has to hold across the full surface area, and the refrigeration plant has to coordinate across zones without drift. At 10,000 sq ft, that scale requires panel precision, multi-zone refrigeration, and an in-house crew that handles every step from measuring through sealing.
02 Why are tight seams and consistent insulation so important on a pharma cold storage build?
Gaps in insulation or inconsistent seams in a food walk-in show up as efficiency loss. The system runs a little harder. In a pharma cold storage envelope, the same gaps show up as temperature drift, and temperature drift on pharmaceutical product is a compliance failure. WFE measures every panel before cutting, cuts to fit on site, and seals each panel into the envelope as one continuous workflow. That is what pharma-grade tolerance looks like at the panel level.
03 How does WFE seal a cold storage envelope as an airtight container?
Airtight envelope means the structural walls, the panel-to-panel seams, the floor-to-wall transitions, and the door perimeters all hold against ambient air exchange. WFE handles each of those interfaces with the right seal type: panel-to-panel joints with pharma-rated sealant, floor transitions sealed against the slab, doors with magnetic perimeter seals that hold under repeated door-cycles. The result is a finished envelope that the refrigeration plant can hold to pharma spec without fighting ambient air infiltration.
This Build Maps To
Service. Market. Coverage area.
Custom Cold Storage
Medical- and food-grade cold storage builds at scale, multi-zone, sealed-envelope spec.
Service detailCannabis
Controlled-environment cold storage for cannabis processing. Closest analog to medical-grade builds.
Market detailMississauga
WFE HQ. Pacer is in the Mississauga air-freight and industrial corridor.
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