3925 Stern Ave, Saint Charles, IL 60174

HVAC & Refrigeration
Components Built for Airflow & Efficiency

HFI Manufacturing fabricates cabinets, ductwork, and structural components for HVAC and refrigeration OEMs. Precision sheet metal built for thermal performance and long-term durability.

Fabrication for Climate Control Equipment

HVAC and refrigeration equipment demands corrosion-resistant cabinets, precision-formed duct sections, and structural frames that maintain dimensional stability across temperature swings. HFI fabricates components for residential, commercial, and industrial climate control systems.

We work with your engineers during prototyping to optimize designs for airflow, condensate management, and service access — reducing field installation time and service call frequency.

60

Years in Business

Custom

Duct & Plenums

Aluminized

Steel Specialist

Powder

Coat Available

Our HVAC & Refrigeration Capabilities

Fabrication processes designed for the thermal, corrosion, and fit requirements of climate control equipment.

Quality

ISO 9001-certified quality with documented inspections, dimensional verification, and full traceability to ensure HVAC components deliver consistent airflow, fit, and long-term durability.

Cutting

Fiber laser cuts stainless up to 1/2″ with burr-free edges. No secondary deburring required for most food-contact surfaces.

Bending

Press brakes handle up to 10ga steel and 3/16″ aluminum. Consistent flanges for gasket sealing and cabinet fit-up.

Welding

Robotic and manual MIG welding for cabinet bodies, duct transitions, and condenser frames. Leak-tight seams on refrigerant-containing assemblies.

Assembly & Kitting

Doors, hinges, latches, filter racks, and access panels installed. Kitted sub-assemblies with hardware packs for field assembly.

Finishing

Powder coating in RAL colors. Outdoor-grade UV-resistant finishes with salt spray testing available for rooftop units.

Products We Fabricate for HVAC & Refrigeration OEMs

From cabinets to ductwork — specific components we build for climate control equipment.

A collection of custom sheet metal fabrication and stamping parts, including bent brackets, enclosures, angles, and channels
Hardware

Custom Metal Brackets

Precision brackets, mounts, and supports for OEM products.
HFI Product - polished stainless steel sheet metal panel featuring stamped, raised louver vents
Fabrication

Laser Cut Sheet Metal Parts

Precision laser-cut components produced from steel, stainless steel, and aluminum.
Industrial electrical control panels
Panels

Control Panels

Fabricated control panel housings and operator interface panels.

Materials & Finishes We Work With

Certified materials selected for HVAC and refrigeration thermal and corrosion requirements.

Aluminized Steel

Heat-resistant material for furnace and heat exchanger components. Excellent oxidation resistance up to 1250°F.

Aluminized Steel

Galvanized Steel

Standard material for ductwork, plenums, and outdoor cabinets. Corrosion-resistant. 20ga — 10ga.

Galvanized Steel

304 Stainless

For drain pans, food-service refrigeration, and coastal environment equipment requiring maximum corrosion resistance.

304 Stainless

Aluminum

Lightweight duct sections and louver panels. 5052, 6061 grades.

Aluminum

How It Works

From your flat pattern to a finished formed part — precise and repeatable.

1

Design Review

We review your drawings, suggest optimizations, and confirm tolerances, materials, and finish specifications.
2

Quote & Sample

Competitive pricing with volume breaks. First-article samples available for critical-fit parts.
3

Production

Laser cutting, CNC forming, welding, finishing — all under one roof. CMM inspection throughout.
4

Delivery

Pick up same-day or scheduled delivery. Kitted and packed to your receiving requirements.

Why HVAC & Refrigeration OEMs Choose HFI

Fabrication partners who understand food service are hard to find. Here’s why customers stay.

Weather-Ready Construction

Our outdoor-rated cabinets and plenums are designed for years of thermal cycling, UV exposure, and moisture resistance.

Consistent Runs

CNC repeatability means part 500 matches part 1. Your production line stays running.

Fast Turnaround

Local Chicago fabrication — same-day pickup available. No waiting on cross-country freight.

DFM Expertise

We help you design for lower cost without compromising quality. Gauge reductions, weld simplifications, material alternatives.

Ready to Discuss Your HVAC & Refrigeration Fabrication?

Send us your drawings, and we’ll respond with a quote. We fabricate for HVAC OEMs of every size — from startups to national brands.

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