Grissom Heat & Air has been concerned with our customers' comfort in their homes since we entered the business over 37 years ago. As a supplier of custom heating and cooling solutions that meet the practical and environmental needs of your home, you can count on Grissom Heat & Air to provide the HVAC installation, repair, and services you need, when you need us. To learn more about what we can do for you, start with a consultation. Depending on what you need from our expert technicians, we can give you information concerning what type of HVAC system is best for you.

We've committed more than 37 years working for our Knoxville, TN, customers, ensuring excellent service and satisfaction with everything we do. We make sure to take steps that set us apart from the competition. We provide timely service, consultations and estimates, and more! We've been the top choice in the industry for HVAC service providers for over three decades for a reason. Here are a few things you get when you use Grissom Heat & Air to handle your heating and air service needs. Some companies will sell you any old HVAC system or piece of equipment because the warranty rests with the manufacturer.

It's no accident that Grissom Heat & Air has been one of Knoxville's top choices for HVAC installation, maintenance, and repair for over 35 years. People have been coming to us, telling their friends, and returning as repeat customers! That's because we provide expert service and the crucial information you need when you have an issue with your HVAC system or are looking for a more efficient model. Here are some of the services we faithfully provide for the people of Knoxville. To schedule a consultation, get in contact with our expert team of HVAC technicians today.

We're a local leader in the installation of new and high-efficiency heating, air, and cooling systems. Grissom Heat & Air offers dependable installation of reliable systems that last our customers for years after installation. Here's how it works when you schedule installation with our expert technicians in Knoxville. You'll start with a consultation. We'll take a look at your current HVAC system and ductwork and decide what type and size of a new system will fit in your home and save you money in the long run.

What's new?

David & Alice Gaylor Pope knew who to c all when there AC went out. We were there the next day & installed a new high efficiency unit for them. Thank you David & Alice

Posted on Oct 04, 2020  •  Facebook

When Steve Wells needed a new AC unit for his mother, he knew Grissom Heat & Air was the one to call. What a difference in install of old unit where pad has been leveled with whatever they could find to this great looking installation. We also reinsulated duct in basement Thank you Steve Steve Wells

Posted on Sep 20, 2020  •  Facebook

New unit & ductwork for New Beginnings Christian Church

Posted on Sep 20, 2020  •  Facebook

Thank you Ronny & Pamela Pennington. Installed unit for them 23 years ago, replaced it this week with Amana 16 Seer Split heat pump with 10 yr parts & labor with LIFETIME Compressor warranty. With Amanas Lifetime compressor warranty they give you a new outdoor unit, not just a compressor..no other...

Posted on May 23, 2020  •  Facebook

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