Heating and cooling systems are integral to the comfort of your commercial space. Keep yours in amazing shape with Shift Air. We install, replace, repair, and maintain a wide variety of commercial heating and cooling rooftop units. Our team of professional HVAC technicians understand commercial work on a personal level, providing all the services your systems need for a long, successful life.

Rooftop Units

K-Series Rooftop Unit

The K-Series Rooftop Unit offers stellar humidity control with up to 61% power savings over comparable units.



  • Efficiency ratings up to 16.5 SEER, 14.8 IEER and 13.0 EER
  • Single-zone variable air volume supply fan technology
  • 29% better moisture removal over systems with conventional fan motors
  • Eco-Last™ Coil System uses up to 52% less refrigerant, is up to 59% lighter, and has up to 20% fewer brazed joints than regular rooftop unit coils (standard on KC and KG models)
  • Choose from gas/electric, electric/electric, or heat pump model
  • Choose from standard or high efficiency

Make-up Air Units

Shift Air

MPU Modular Packaged Unit

The Captiveaire MPU Modular Packaged Unit uses less energy with multiple stage cooling, operates with an environmentally friendly refrigerant, and won’t require an additional roof footprint.



  • Optimized for 100% OA for kitchen use
  • High-efficiency nominal 14 SEER rating condensers
  • Integral cooling staged thermostat
  • Pre-piped and charged refrigeration circuits
  • Coils and condensers sized to comfort cool make-up air
  • Thermal expansion valves and filter/dryer kits
  • External equalization lines for thermal expansion valves
  • Hard start relay kits on condensers
  • Condenser disconnect switch
  • Vacuum tested and leak checked lineset/coils
  • Condenser transformer prewired
  • Thermostat prewired and interlocked with heater
  • Integral weather/hail guard

Refrigeration Systems

Whether you own the best restaurant in town or the local grocery store, you need the best commercial refrigeration equipment. And for that, you need a team of qualified experts on side. We understand what it takes to run a local business because we are a local business, with some of the best commercial refrigeration technicians in the industry. We’re always ready to help. Just call or click today!

Here’s are just a few of our commercial refrigeration services:

  • Ice machine service and cleaning
  • Walk-in cooler service and installation
  • Walk-in freezer service and installation
  • Reach-in coolers
  • Stand-up coolers
  • Line coolers
  • Beer walk-in coolers
  • Beer reach-in coolers