Customer Testimonials


“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.

“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.

“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.

“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.

“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.

“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.

“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.

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.