Fast Action Service!

Since 1962, we've offered professional heating and cooling installation throughout all of Northwest Indiana.

Fast Action Service!

Since 1962, we've offered professional heating installation throughout all of Northwest Indiana.

We’re Your Hometown Heating and Cooling Experts

As a family owned and operated business, Gray’s Total Green Energy Solutions, LLC, is Northwestern Indiana and the Chicago Metro’s premier Green Energy HVAC service provider. The heart and spirit of our company is all about doing the job right. But it’s so much more than just the quality of our workmanship. It’s about the comfort, health, and safety of your family. To that end we deliver peace of mind by virtue of everything we do to make the environment of your home as comfortable and healthy as it can possibly be.

Grays Team Spring 2020.
Lynn-Arrow

Here’s Lynn, stopping at nothing to make sure your heating and cooling system is in working order!

“We truly value your business and believe it should be earned the old fashioned way. We’ll be there when you need us for all your heating and cooling needs, charge you a fair and honest price and stand behind our work.”
-Lynn Gray, President

A Letter From the Owner...


My name is Lynn Gray and I am the president of Gray’s Total Green Heating and Cooling, LLC. My Dad had a HVAC business as I was growing up. I remember being in high school and going out on jobs with him as he was teaching me the trade. Back then there was only conventional means of heating and cooling—not like today where there are choices such as geothermal and solar. As the years went by my Dad retired from the business and I started my own.

We’re A Carrier Factory Authorized Dealer

From maintaining a consistent temperature, to helping keep your utility bills cheap, to cleaning and humidifying (or dehumidifying!) your air, Carrier products provide the means to fully manage your home’s heating and cooling quality, all while keeping you and your family comfortable.

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Our Customers Love Us

See what everyone's saying about Gray's!

Gas Furnace Repair in Other, IN 46342

“Jakob is incredibly professional and knowledgeable. He makes every effort to diagnose issues correctly and resolve them in a cost effective manner. Thanks Jakob for providing us with great service!”
- Raquel-Catherine B.

Air Conditioner Repair in Lowell, IN 46356

“Jakob Pelter found the problem quickly and made repair. My wife was happy to have the a/c back on. Mr Gray is lucky to have Jake as an employee.”

- michael r.

On Time and Very Efficient

“5 star ON TIME AND VERY EFFICIENT”

– Tim & Joann S.

We love hearing from our customers!
If you've had us work on your HVAC system we would love to hear from you too.

Need HVAC Service?

Contact the experts at Gray's.

Call us at 219-696-8377!

Check Out Our Latest Articles

Video-Do You Want to Reduce Your Energy Bills?

February 25, 2021

Upgrade your HVAC equipment to help you save money on your monthly energy bills. Call us at 219-696-8377 today for more information.

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What Are Signs I Need a New Furnace?

February 16, 2021

A furnace is a major investment for any St. John homeowner. Although it’s not something that will need to be done frequently, most people will face the decision of needing to purchase a new heating system sometime during home ownership.

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Video-Why Is My Furnace Blowing Cold Air?

January 26, 2021

There are a few things to check in your home in the case that your furnace is blowing cold air, such as your thermostat settings, air filter, and your home’s ductwork. If you can’t figure out the issue, give us a call at 219-696-8377 and we will inspect your furnace.

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