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Customer Testimonials


Boiler Installation in Mulliken, MI 48861

“Justin and Terry did a fantastic job on the install of our new combi boiler. They were respectful, timely, and willing to answer all our questions during the installation. They ended up working on our house for 2.5 days and we’d be happy to have them back anytime.” – Lucas N.

Boiler Installation in Mulliken, MI 48861

“Mike is awesome. On the first trip out to trouble shoot our new install, he had to spend more time than I’m sure he had planned, but put in the extra effort to make sure everything was fully operational. On the second trip back he did the full start up and was more than happy to answer all of our questions. Very personable, knowledgeable, and an overall great person to work with. We’d be happy to have him back!”

– Lucas N.

Gas Furnace Installation in Portland, MI 48875

“Mike is courteous, friendly and knows his job well. He has always taken the time to answer my questions and point things out. Mike is awesome and so is ESI!”

– Marcy L.

Gas Furnace Installation in Portland, MI 48875

“Justin and Terry did a great job with the installation of my new furnace. They were very knowledgeable and took the time to explain everything. Kudos to ESI!”

– Marcy L.

Gas Furnace Installation in Sunfield, MI 48890

“They are professional and explained as they went along. They showed me what they had done upstairs and in the basement.”

– Joyce R.

Whole House Dehumidifier Installation in Pewamo, MI 48873

“Justin and Terry were very professional throughout the whole installation of our whole home dehumidifier. They were punctual, very careful on not tracking mud into our home, made sure we knew who they were, what they were doing, if we were comfortable with/without masks and made sure we were okay with the overall setup before they began. They were courteous during the installation, thoroughly explained the system, answered every question we had, cleaned up well and made sure we were comfortable and happy with everything before leaving. We had an overall very good experience, as always with ESI. Thank you Justin, Terry, and Nick on a job well done :)”

– Sam and Amy M.

Gas Furnace Installation in Portland, MI 48875

“The guys were prompt to show up, did a great job on the install, cleaned up after themselves, were happy to answer questions and knew what they were doing. We were very pleased!”

– Robert W.

Gas Furnace Replacement in Holt, MI 48842

“I was very happy with Justin and Terry. They were both very polite, knowledgeable, and eager to answer any questions I might have. When they left my home, they had cleaned up and you wouldn’t have known that they were ever here. Being in the construction trades myself, and what I expect from my guys who go into a person’s home representing our company, to find a company like ESI is a real pleasure to deal with. I will be highly recommending ESI Heating and Cooling to all my friends and people I deal with. Thank you ESI Heating and Cooling. ”

– Bill H.

Gas Furnace Installation in Grand Ledge, MI 48837

“Very professional and thorough. Worked to get our failed furnace replaced as quickly as possible.”

– Geoffrey B.

Gas Furnace Installation in Haslett, MI 48840

“As part of the excellent installation process for our new Tempstar furnace, Steve came back to our home a week later to conduct a thorough “tuning” and check of the furnace. He also reinforced the training we had received from Justin and Terry on basic maintenance and operation of the thermostat. Steve was prompt, friendly, and went straight to work. It was obvious that his goal was to make sure all was well with the new furnace and to make sure that we were comfortable with operating the thermostat. ESI has a wonderful team. We are completely satisfied and grateful!!”

– Ciney and Jan R.

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.

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