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.
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.
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
2026 AC Maintenance Guide: Is a Spring Tune-Up Worth It?
The sun is out, the weather is perfect, and the trees are starting to bloom in . Spring is officially here! And because we’re a month or two away from the first real heatwave hitting (if we’re lucky), nearly every homeowner asks the same question: “Do I really need to pay for an AC tune-up…
Spring Allergies: Your HVAC System Can Help You Breathe Easier in Your Home
Spring is a time of renewal, but for millions of homeowners, it’s also the season of sneezing, itchy eyes, and congestion. Trees and grass in , are prominent springtime culprits, letting pollen loose into the air and on surfaces—and if we’re not careful—into our homes. We track it indoors, let it in through open windows…
Hot and Cold Spots? Go Ductless in Your Portland, MI, Home
Do you experience four seasons just by walking through your home? Does one room feel like a hot summer day and another like a cold winter night all at the same time? Inconsistent heating and cooling are common problems that can affect your comfort and increase your energy bills in . At , we’ve got…
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
