• Heating, Ventilating, Air Conditioning
  • Plumbing Systems
  • Process Piping
  • Heating Hot Water Systems
  • Chilling Water Systems
  • Steam Systems
  • Radiant Heat/Snow Melt Systems
  • "Green" Building Technologies/LEED Design
  • Condition Investigations
  • Energy Efficiency Studies
  • Energy Use Modeling
  • Energy Code Compliance Forms
  • Outside Air Ventilation Calculations
  • "As-Built" Drafting

The Marquess Mechanical Department offers comprehensive experience in the design of mechanical systems including health care facilities, laboratories, office buildings, schools, industrial food processing, cold storage, industrial process, churches and luxury homes.


    • High and Medium Pressure Duct Design-Static Regain or Equal Friction Sizing Methods
    • Elite Software for Commercial HVAC Loads
    • Carrier Hourly Analysis Program for HVAC Loads
    • Line Logger for Equipment Power Measurement
    • Temperature Recorders

    CONTACT: Mechanical Department



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