Our story

Energy Wise is a mechanical services contractor offering the best in the class client services supporting  commercial HVAC, refrigeration and related services.

Mike Rongey created Energy Wise as a small business to enable him to be on site for every job.  His hands on approach and attention to detail ensures a thorough understanding of your operational requirements and first hand oversight of your project from start to finish.

The Energy Wise team provides services in the entire Southern Illinois Metro East region. We offer everything from design and installation of new systems, retrofits, upgrades and servicing for existing systems.

The Energy Wise team is focused on maximizing energy efficiency to reduce their client’s operating costs, while creating and maintaining systems to provide the required environment for health, safety and comfort.

Customer Testimonials

“I switched all of my HVAC service & repair over to Mike at Energy Wise about 18 months ago and couldn’t be happier.  The overall performance of our units has improved greatly.  They are here every quarter for routine maintenance and here promptly if a problem does occur.  The service they provide is very professional and courteous”.

“We’ve dealt with many HVAC companies in the area, while most were good, none of them could compare to Energy Wise. They return phone calls quickly, they show up on time for appointments, and if there is an emergency they make sure to handle it right away. You won’t be disappointed with Energy Wise!”