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 understands commercial work on a personal level, providing all the services your systems need for 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 the 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