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!

On Time and Very Efficient

“5 star ON TIME AND VERY EFFICIENT”– Tim & Joann S.

Truly Went Above and Beyond

“After several months of furnace problems, JACOB has come to my rescue. He had to make 3 trips to my home (not any of his fault) to fix the problem and he remained cool, calm and collected throughout the entire process.

JACOB truly went above and beyond to get my problem solved, and if I have any further problems, I am going to request for him to do the work.”

– Patricia S.

I Could not be More Happy

“I could not be more happy with Gray’s Total Green Energy Solutions, LLC instalation and service.

thank You!”

– Craig 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

Family Around the Table

Video – Indoor Air Quality is Important to Your Family’s Health and Well Being

June 19, 2020

Do you know the importance that indoor air quality has on your family’s health? Our team suggests these three tips to help keep you healthy.

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Couple Looking at Bills

How Can I Afford a New AC System (and Other HVAC Equipment)?

June 12, 2020

Do you need a new air conditioning system? Our team can assist with your AC options and offer you financing options with quick approvals.

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Close up of an air filter, Video - Replace Your Air Filter | HVAC Maintenance | Gray’s, Lowell, IN

Video – Replace Your Air Filter

May 26, 2020

Change your HVAC filters regularly, as recommended, which is usually at least every three months. A good HEPA filter will catch the particles before they reach your lungs. There’s so much floating in the air our eyes can’t see, and changing your filter as recommended makes all the difference.

Read More