Testimonials Articles

Gas Furnace Replacement in Portland, MI 48875

November 11, 2022

“Clean efficient on time and very friendly. Would recommend ESI to anyone that ask” – Dave M.

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Geothermal Heat Pump Installation in Charlotte, MI 48813

October 31, 2022

“Justin and Terry were very professional, courteous, and knowledgeable. They took the time to make sure everything was done correctly, to explain how everything worked when the install was completed, and to answer all our questions. They cleaned up the work site and even swept the floors of the rooms they had been working in.…

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Boiler Installation in Charlotte, MI 48813

September 27, 2022

“After taking a major lighting strike which knocked out multiple systems, including our boiler which provided heat and domestic hot water, ESI was the company that could respond quickly. After an in home analysis of the damage by Nick, it was decided that the most cost effective solution was an installation of a complete new…

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Air Conditioner Installation in Lake Odessa, MI 48849

June 24, 2022

“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.

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Air Conditioner Replacement in Lansing, MI 48912

May 25, 2022

“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.

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Gas Range Line Installation in Lansing, MI 48906

March 15, 2022

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

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Whole House Humidifier Installation in Portland, MI 48875

February 9, 2022

“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.

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Gas Furnace Installation in Lansing, MI 48917

January 24, 2022

“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,…

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Gas Furnace Installation in Westphalia, MI 48894

December 3, 2021

“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.

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Geothermal Heat Pump Installation in Charlotte, MI 48813

November 23, 2021

“Did good work and explained everything clearly ?????” – Herbert A.

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Gas Furnace Replacement in Portland, MI 48875

September 13, 2021

“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.

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

August 23, 2021

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

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

July 30, 2021

“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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Gas Furnace Installation in Grand Ledge, MI 48837

July 2, 2021

“Justin & Terry installed a furnace and air conditioner for me. The service was performed very professionally and neatly. They spent the time in answering my questions in an informative, friendly manner and familiarized me with all the components and system operation. A job very well completed .” – Ron F.

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Ductless Mini-Split Installation in Other, MI 48823

April 28, 2021

“Justin and Terry did a fantastic job from start to finish! This is easily the best experience I’ve ever had with a company doing work on my home. They were punctual, kept me informed, and made the mini-split installation in my almost 100-year-old home look easy:). I highly recommend ESI and specifically Justin and Terry!”…

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Boiler Installation in Mulliken, MI 48861

March 29, 2021

“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.

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Boiler Installation in Mulliken, MI 48861

March 29, 2021

“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…

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Gas Furnace Installation in Portland, MI 48875

March 26, 2021

“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.

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Gas Furnace Installation in Portland, MI 48875

March 18, 2021

“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.

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Gas Furnace Installation in Sunfield, MI 48890

March 17, 2021

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

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Whole House Dehumidifier Installation in Pewamo, MI 48873

March 14, 2021

“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…

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Gas Furnace Installation in Portland, MI 48875

March 11, 2021

“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.

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Gas Furnace Replacement in Holt, MI 48842

January 13, 2021

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.

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Gas Furnace Installation in Grand Ledge, MI 48837

January 5, 2021

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

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Gas Furnace Installation in Haslett, MI 48840

January 5, 2021

“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,…

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Gas Furnace Installation in Haslett, MI 48840

January 5, 2021

“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…

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Geothermal Heat Pump Installation in Other, MI 48888

December 4, 2020

“Very pleased.” – Jenean K.

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Gas Furnace Installation in Westphalia, MI 48871

October 30, 2020

“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.

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Gas Furnace Maintenance in Dewitt, MI 48820

October 15, 2020

“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.

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Gas Furnace Installation in Dewitt, MI 48820

September 28, 2020

“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…

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Gas Furnace Installation in Portland, MI 48875

September 22, 2020

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

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Ductless Mini-Split Installation in Okemos, MI 48864

September 11, 2020

“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.

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Water Heater Replacement in Portland, MI 48875

August 18, 2020

“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.

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Air Conditioner Maintenance in Portland, MI 48875

August 16, 2020

“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.

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Water Heater Replacement in Portland, MI 48875

August 8, 2020

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

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Air Conditioner Maintenance in Okemos, MI 48864

August 5, 2020

“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.

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Air Conditioner Maintenance in Other, MI 48879

July 27, 2020

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

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Air Conditioner Replacement in Portland, MI 48875

July 14, 2020

“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…

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Air Conditioner Installation in Portland, MI 48875

July 7, 2020

“Nick was awesome at getting our installation scheduled very quickly thank you ? also Justin and terry did a great job installing the central air thank you ESI! Highly recommend them!!!” – Nicole S.

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Zone Control System Repair in Other, MI 48892

June 16, 2020

“Mike Charles, my service tech, was very thorough, explained the work needing to be done as well as the work that was completed when he came back to install the parts. Mike is a very friendly. . . our dogs just love him too. Thank you Mike and the whole ESI team for being so…

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Air Conditioner Maintenance in Portland, MI 48875

May 28, 2020

“ESI’s Maintenance team is great. My appointment was scheduled and had requested service performed within a couple of days. Mike C was my technician. He was on time and super friendly to my family and myself. Mike was very thorough with what he found during our maintenance check and made sure to explain if questions…

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Gas Furnace Installation in Portland, MI 48875

November 21, 2018

““I was impressed with the professionalism of Nick Bengal, Randolph Martin and Mike Charles. They removed my old Lennox 21 V-Pulse furnace and installed a new Amana 97% Efficiency Modulating Variable-Speed Gas Furnace. They installed it as scheduled in a timely manner. They arrived on time and cleaned up after themselves. Randolph and Mike removed…

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My Heat Pump Paid for Itself

October 22, 2018

“As an ESI customer I am very pleased with the decision to go with the heat pump system this past year. With prices soaring this decision sure made a difference in my home heating cost this past season. Though the heat pump was a little more expensive to get started I saw a savings in…

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My Energy Bills were Reduced by at Least 50%

January 23, 2018

“In November 2006 ESI replaced my 30 year old fuel oil furnace and fuel oil water heater with the highest efficiency available natural gas furnace and water heater. The appliances installed were exactly what I had requested and the ESI technicians were right on schedule. The furnace and water heater were installed neatly and orderly.…

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