It’s not just about what we can do,
it’s about what we can do for you



MZI specializes in the design/build and plan/spec of commercial and industrial heating, ventilation, and cooling systems for both new construction and existing systems. From rooftops to warehouses, exhaust systems to ductwork MZI leads the way in mechanical construction.

Utilizing a highly specialized team of estimators, and project managers MZI can successfully manage projects of all sizes and achieves excellence by design.

  • Water Chillers - Centrifugal Absorption
  • Cooling Towers
  • Screw & Reciprocating Fan Systems
  • Computer Room Air Conditioning Equipment
  • Boilers - Steam and Hot Water
  • Pumps - Heating/Cooling/Booster/Ejectors
  • Temperature Controls - DDC
  • Electric and Pneumatic
  • Rooftop HVAC Equipment
  • Refrigeration Equipment
  • Chemical Water Treatment


UIC Boiler Installation

Installed new boiler to regulate temperature control


City of Chicago Maintenance

Mechanical Maintenance on City of Chicago Buildings