Our Products & Services

Providing a wide variety of different HVAC products & services to fit your needs.

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  • Air Distribution
  • Air Terminal Units
  • CRAC Units
  • Dampers
  • Duct & Sheet Metal
  • Fans
  • Heaters
  • Humidifiers
  • Lab Controls
  • Louvers
  • Make-Up Air Units
  • Noise Control
  • Pool Units
  • Seismic & Vibration
  • Sheetmetal Accessories
  • VRF

Air Distribution Representatives Serving North and South Carolina

Welcome to Hahn-Mason Air Systems, Inc

Hahn-Mason is a leading HVAC manufacturer representative, serving the commercial, industrial and residential markets throughout North and South Carolina. We take pride in offering customers the best possible service and products. Check out our full portfolio of sustainable and energy efficient products offering a range of HVAC solutions.


We are the trusted advisors for anything to do with an engineered HVAC system.


We strive to serve our customers by providing them with optimal solutions for their engineered HVAC system needs.

Our Purpose

We want to be a part of every engineered HVAC system, using our expertise to deliver the best solution.

Our Core Values


Relentless Tenacious

Relentlessly Tenacious







Latest News & Events

New Employee – HMI Charleston

Please join me in welcoming Brian Ross to the HMI Charleston Team. Brian attended Florida State University where he received his Bachelors of Science in Mechanical Engineering.…

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