Customer Testimonials


Air Conditioner Installation in Lake Odessa, MI 48849

“Very professional, very courteous, very knowledgeable. Work very hard to assure we had a functional hvac system ASAP. I would highly recommend this company.” – Michael R.

Air Conditioner Replacement in Lansing, MI 48912

“Justin and Terry were very knowledgeable about best practices for replacing my AC unit. They also took the time to replace some old valves that are no longer used in case I want to install a humidifier in the future.”

– Paul T.

Gas Range Line Installation in Lansing, MI 48906

“The guys were great, fast and highly experienced. Clean up perfect and post install explained all that was done. Excellent job”

– Phil D.

Whole House Humidifier Installation in Portland, MI 48875

“Justin & Terry were very courteous and professional. They removed our old system and installed the new Aprilaire unit. Justin took time to explain the new unit in detail and answered all of our questions. They cleaned up the area and when they left, it was better than when they started.”

– Gary F.

Gas Furnace Installation in Lansing, MI 48917

“We had a new furnace/filter/humidifier/thermostat installed. Terry and PJ did a great job – neat, thorough, considerate. We had one issue: after they did their testing they apparently forgot to flip a switch on the gas valve and so after the showed us all about programming the thermostat and the furnace was seemingly working fine, they left and the furnace would not cycle back on. After I checked what I knew to do, and it still didn’t cycle back on, I called the after hours number and spoke to the on call person (whose named I failed to write down and now can’t remember) came right over, found the problem and corrected it. If you wonder at the 5 stars I rated them, I can only say that my clue that this is the company you want to work with is this: little oversights can always occur; what is important is the quality of the service recovery when those things happen. ESI was first rate.”

– Howard B.

Gas Furnace Installation in Westphalia, MI 48894

“We want to thank ESI Heating and Cooling for an excellent job in installing our new furnace and air conditioner. The technicians, Justin and Terry were very courteous and informative about the installation, details and clean up.

Very pleased with the services of ESI.”

– Larry T.

Geothermal Heat Pump Installation in Charlotte, MI 48813

“Did good work and explained everything clearly ?????”

– Herbert A.

Gas Furnace Replacement in Portland, MI 48875

“Great work done by Justin and Terry. The work was clearly done the right way and they explained everything to us before they left. On top of that our house looked cleaner after they left than when they first got here! Thanks for everything Justin and Terry!”

– Mike C.

Semi-Ducted Mini-Split Repair in Lansing, MI 48915

“Justin and Terry were efficient, friendly, respectful, and cleaned up thoroughly after they finished. I’m very happy (and cool again).”

– Daniel L.

HVAC and Indoor Air Quality Replacement in St. Johns, MI 48879

“Very polite gentleman, kept me informed as work progressed, very thorough completion review. I will recommend this company and these employees to everyone.”

– Shannon T.

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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.