For nearly 40 years, Johnson-Melloh Mechanical and Service Contractors has maintained a reputation for consistent delivery of quality mechanical contracting services ranging from design-build to preventative maintenance and on-call services.

Johnson-Melloh Solutions is Leading the Way for Energy Innovation. From design to building energy-efficient mechanical system upgrades, building automation systems, solar electricity, solar thermal systems, and Compressed Natural Gas (CNG) as well as energy storage and transfer solutions, we continue to provide long-term, cost-saving solutions as a leading Indiana Energy Services Company (ESCO) focusing on renewable and alternative energy.