We are a full service mechanical contractor with extensive experience in a wide range of market segments: K-12, College and University, State and Local Government, Federal Government, Commercial Real Estate and Life Science.



Plumbing / Piping
  • Back Flow Preventer Inspections
  • Sewer Cam
  • Drain Cleaning
  • Smoke Test
Refrigeration / Kitchen Equipment
  • Reach-in coolers and freezers
  • Walk-in coolers and freezers
  • Ice machines
  • Low temp and ultra low temp freezers /
    Biomedical equipment
  • Rack refrigeration systems
Heating / Air Conditioning / Ventilation / Controls
  • Rooftops
  • Split Systems
  • Steam and Hot Water Boilers
  • Chillers
  • Water Source Heat Pumps
  • Cooling Towers / Dry Coolers
  • Ductless Systems
  • Computer Room Units
  • Sheet Metal
ASK ABOUT OUR:
Preventive Maintenance Agreements

To obtain a quote or request additional information about our services today, call Kevin Loy at (317) 244-5993 .

Johnson-Melloh is proud to have established relationships with many of the industry's leading equipment manufacturers both locally and nationally. We're committed to installing only the highest quality equipment at our customer's facilities to ensure reduction in maintenance costs and downtime.