ESI Heating and Cooling vehicle for HVAC service in Portland, MI, and the Ionia County area.

Top-Rated Heating & Cooling Services
in Portland & Greater Lansing

Call our cooling experts today!

Proudly serving Portland, Dewitt, Grand Ledge, the Greater Lansing area and the surrounding communities.

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WHO we ARE

Our highly qualified team of individuals has now spent nearly 30 years servicing Portland and the surrounding communities. We take pride in our constant demand for quality and in the personal relationships we develop with our customers.

OUR HISTORY
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QUALITY AND PERSONAL RELATIONSHIPS

WITH OUR CUSTOMERS

Gas Furnace Replacement in Portland, MI 48875

“I was very impressed with the work and professionalism of Terry and Triston. Terry was very thorough going over and explaining how the new furnace and thermostat worked. The work was done in a timely manner and my wife and I were very pleased with these two young men. I would highly recommend ESI for any of your heating and cooling needs.”
- Dave H.

Geothermal Heat Pump Replacement in Grand Ledge, MI 48837

“Tristin and Terry did a great job taking out the old unit and installing a new and much updated unit.
I could tell that they knew what they were doing. I felt confident that I would get quality work from them.
As expected the new furnace is working perfectly.”

- James M.

Gas Furnace Replacement in Dewitt, MI 48879

“We were delighted with the service. Arrived at the time indicated, introduced themselves and what the process was going to look like. Communication was excellent and the walk through was thorough and educational. We have always enjoyed ESI and their team. Everyone always provides generous and kind support. We look forward to continuing our partnership with you. Thank you!”

- Jason M.

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THE ESI DIFFERENCE

ESI combines decades of industry experience with cutting-edge training to ensure customers receive the best products and services available. Serving Portland, MI, for nearly 30 years, ESI prides itself on developing strong, personal relationships with clients and maintaining a highly certified team focused on excellence.

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WHY CHOOSE

GEOTHERMAL HEATING?

  • Lower operating costs: Savings up to 70 percent.
  • Safe and clean: No fossil fuels, odors, or carbon monoxide to worry about.
  • Comfortable: Gone are the uneven temperatures you can find with ordinary furnaces.
  • Flexible: No matter your home size or location you have many options for your closed loop location or water discharge.
  • Environmentally friendly: Our systems harness the “free,” renewable energy in your own backyard and emit no carbon monoxide, carbon dioxide, or other harmful greenhouse gasses.

Our systems qualify for many utility company rebates and the current 30 percent, no cap, federal tax credit.

REQUEST ESTIMATE
50 in incentives on qualifying systems. For a limited time. Restrictions may apply. Call for more details.
NO INTEREST, NO PAYMENTS FOR 12 MONTHS!* *if approved through GoodLeap. Restrictions may apply. Call for more details.
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SAVE

WITH ESI

The Energy Savings Agreement program offers ESI customers peace of mind that their equipment is not only running correctly but also running as efficiently as possible.

ESA holders can expect indoor comfort, fewer repairs, lower utility bills, extended equipment life, and assurance that their equipment is operating safely. ESA customers receive priority service, including benefits like 24/7 emergency service, no overtime diagnostic fee, and a 15% discount on all repairs.

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QUALITY, DURABLE HVAC SYSTEMS

The Amana brand has long been an American legacy. And the same commitment to quality and innovation behind Amana brand home appliances goes into Amana brand heating and air conditioning equipment.

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Amana heating and cooling equipment.

THE LATEST NEWS AND TIPS

10 Things to Consider When Buying a New Furnace

10 Things to Consider When Buying a New Furnace

12/31/2025

Winter in Portland, is shaping up to be especially harsh this year. Can you imagine not having your furnace to help you make it through? You go to turn it on … and instead of rushing warm air through your ducts, it rattles, groans, and then just sits in sullen silence, clearly protesting another season of overworked servitude.

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The Basics of Winter Indoor Air Quality. Father with son sitting in comfortable armchairs in their cozy country house near fireplace and enjoying a warm atmosphere and flame moves. Their beagle friend dog sitting beside on white sheepskin.

The Basics of Winter Indoor Air Quality

12/15/2025

In the winter, being snug as a bug in a rug in your home can be cozy, but it can also play havoc with your indoor air quality (IAQ) here in Portland, creating some significant health problems.

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What Size Heat Pump Do I Need?

What Size Heat Pump Do I Need?

11/24/2025

So, your trusty AC or furnace has finally thrown in the towel. You start researching replacement options and keep running into this thing called a heat pump.

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WE’RE A PART OF THE

PORTLAND COMMUNITY

Giving back is our way of thanking our customers and the surrounding communities. Showing that we appreciate them for trusting us to come into their homes and provide a service.
“From what we get, we can make a living; what we give, however, makes a life.” -Winston Churchill

WHAT WE’RE UP TO

WE SERVICE ALL BRANDS

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