Johnson-Melloh Mechanical is Indiana’s premier one-stop solution for a turnkey, full-service partnership that offers the best in mechanical contracting experience, responsive service and maintenance agreements, and innovative energy-savings solutions. 

We are a leader in piping, refrigeration, chillers...Providing retrofit, new construction, design/build, and design/assist for high-performance systems. Johnson-Melloh is your full-service solution for a more productive, more efficient working environment.

Johnson-Melloh Mechanical

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