Customer Testimonials


“Every person on the team was professional, prompt and genuinely cared about the situation. We had an older conditioning unit that needed to be replaced during the hottest days this summer. I cannot thank them enough for taking the time to explain everything. We were confident with our decisions and highly recommend ESI.”

– Linnae D.

- Linnae D.

“Nick was awesome at getting our installation scheduled very quickly thank you ? also Justin and terry did a great job installing the central air thank you ESI! Highly recommend them!!!”

– Nicole S.

- Nicole S.

“Mike Charles, my service tech, was very thorough, explained the work needing to be done as well as the work that was completed when he came back to install the parts. Mike is a very friendly. . . our dogs just love him too. Thank you Mike and the whole ESI team for being so outstanding and reliable!”

– Susan S.

- Susan S.

“ESI’s Maintenance team is great. My appointment was scheduled and had requested service performed within a couple of days. Mike C was my technician. He was on time and super friendly to my family and myself. Mike was very thorough with what he found during our maintenance check and made sure to explain if questions were asked. Thank you Mike and the whole ESI team for being so outstanding and reliable!”

– Kendall M.

- Kendall M.

““I was impressed with the professionalism of Nick Bengal, Randolph Martin and Mike Charles. They removed my old Lennox 21 V-Pulse furnace and installed a new Amana 97% Efficiency Modulating Variable-Speed Gas Furnace. They installed it as scheduled in a timely manner. They arrived on time and cleaned up after themselves. Randolph and Mike removed the old furnace and had the new furnace operational by the end of the day. My wife and I did not spend a night in the cold. Randolph and Mike were methodical in the installation process. After installing the furnace, Nick helped Randolph and Mike set up the new Amana furnace to work with my Geothermal heating and cooling system. Following completing the integration of the gas furnace and geothermal, Nick instructed me on how the gas furnace, geothermal and zone heating functions. Our home is the most comfortable, from a heating standpoint, it has ever been since moving into the newly built home in 1998. I highly recommend hiring ESI Heating and Cooling Inc. to install and service anyone’s heating and cooling needs.””

– Bruce B.

- Bruce B.

“As an ESI customer I am very pleased with the decision to go with the heat pump system this past year. With prices soaring this decision sure made a difference in my home heating cost this past season. Though the heat pump was a little more expensive to get started I saw a savings in my first year of approximately $1,200. It paid for itself in year one.”
– Clay S.

- Clay S.

“In November 2006 ESI replaced my 30 year old fuel oil furnace and fuel oil water heater with the highest efficiency available natural gas furnace and water heater. The appliances installed were exactly what I had requested and the ESI technicians were right on schedule. The furnace and water heater were installed neatly and orderly. I did not have to clean up the work area after installation because the ESI technicians did this. With the new night efficiency gas furnace and water heater compared to my old fuel oil water heater and fuel oil furnace my energy bills were reduced by at least 50%.
– Tom K.

- Tom K.

Need HVAC Service?

Contact the experts at ESI Heating.

Call us at 517-647-6906!


ESI Heating proudly provides HVAC service to Portland, Dewitt, Grand Ledge, the Greater Lansing area and the surrounding communities. Visit our service area page for more coverage details, call us at 517-647-6906, or request service online today.