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.
QUALITY AND PERSONAL RELATIONSHIPS
WITH OUR CUSTOMERS
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.
JOIN OUR TEAM!
WHY CHOOSE
GEOTHERMAL HEATING?
Our systems qualify for many utility company rebates and the current 30 percent, no cap, federal tax credit.
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.

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.
THE LATEST NEWS AND TIPS
Is My Furnace Overheating?
Just about any electrical appliance has the potential to overheat, and furnaces are no exception. As a homeowner, you need to take precautions to lower the risk of an overheated unit. You should also be wary of the associated symptoms so you know when to take action.
CONTINUE READINGWhy Buying a Heat Pump Instead of a Furnace Makes Sense
Want to heat and cool your Portland home, fight climate change, and save money—all at the same time? Get a heat pump. Under the Inflation Reduction Act of 2022, the federal government offers generous rebates and tax breaks to homeowners who buy heat pumps. The financial incentives aim to wean consumers away from fossil fuel-based…
CONTINUE READINGWhy Is the Furnace Pilot Light Going Out?
This issue happens more often than not with older furnaces, and it could be a sign you are ready to upgrade your Portland home’s heating and cooling system with a new model. At the 10-year mark, furnaces start to lose efficiency and begin breaking down more frequently.
CONTINUE READINGWE’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