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Customer Testimonials


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.

Water Heater Replacement in Portland, MI 48875

“Very impressed with the install of my new water heater. I called in the morning & they were out to install in the afternoon. They were very professional & had everything working in a couple of hours. I always have great service with ESI”

– John B.

Air Conditioner Maintenance in Portland, MI 48875

“Prompt, kind, & efficient. Answered all questions & showed us what needed to be done to maintain our system. We didn’t feel like we were just a number but more as a customer.”

– Eric L.

Water Heater Replacement in Portland, MI 48875

“Justin and Terry were very professional and answered all our questions about new tank after installation. Would recommend to anyone.”

– Chris Q.

Air Conditioner Maintenance in Okemos, MI 48864

“Explained and gave us options about our AC Unit. Gave his advice but didn’t pressure. Was polite and kind. Great worker!”

– McQuaid & Associates 0.

Air Conditioner Maintenance in Other, MI 48879

“Always on time! Always courteous and professional, always suggesting appropriate repair at the best price!”

– Sarah N.

Air Conditioner Replacement in Portland, MI 48875

“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.

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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