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Customer Testimonials


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.

Gas Furnace Installation in Haslett, MI 48840

“Mike showed us during fall maintenance that a problem was developing with our 17 year old furnace. Nick provided a couple of quotes from the Tempstar furnace line, assuring us that we would notice improved performance and better thermostat control. He was so very right! Our home temperatures are much more even between rooms and between floors. Even the humidity feels more comfortable. Our old thermostats were so difficult to operate and modify. This new one is intuitive and a breeze to use.
Justin and Terry arrived as planned, were friendly, considerate and helpful. They had the new furnace operating the first day with no noticeable discomfort during the install despite the winter weather. The next day they returned to finish the job and train us on the thermostat controls and basics like changing the filter.
We couldn’t ask for a smoother transition and are very pleased with our new furnace. Every chance we get we recommend the team at ESI — maybe we shouldn’t, they’ll get too busy.
Thanks!”

– Ciney and Jan R.

Geothermal Heat Pump Installation in Other, MI 48888

“Very pleased.”

– Jenean K.

Gas Furnace Installation in Westphalia, MI 48871

“They came and went and the only way I knew they were there is that I have a new furnace and AC. That is very cool.”

– Greg C.

Gas Furnace Maintenance in Dewitt, MI 48820

“Extremely Professional took time to explain and reassure us that all was being done to improve our heating situation. This guys a keeper! Will recommend your company to others. Thanks so much Mike for all you did!”

– Alicia S.

Gas Furnace Installation in Dewitt, MI 48820

“Our experience with ESI couldn’t have been more professional, efficient, and positive! Our new furnace and air conditioner were installed without any disruption. We hardly knew they were here! We thank the whole ESI team for their attention to detail, thoroughness, and ease of working together with us. It was a pleasure doing business with them!”

– Wohlfert W.

Gas Furnace Installation in Portland, MI 48875

“The crew was very professional. Good experience with ESI”

– Chris Q.

Ductless Mini-Split Installation in Okemos, MI 48864

“Justin and crew were prompt, efficient, thorough, and cleaned up after themselves. I had 2 Ductless mini split systems installed. They did a great job inside and out. They explained the operation to me & made sure I understood everything before they left. Great customer service.
Thanks!”

– Renee H.

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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