About Us

Your Trusted HVAC Company in Knoxville, TN

A lot has changed over the past four decades, but homeowners still want the same thing from their HVAC company: reliable service from people they can trust. Grissom Heat & Air has proudly served Knoxville and the surrounding area for more than 40 years, helping local families with repairs, replacements, maintenance, and long-term comfort solutions. We're easy to reach, straightforward to work with, and committed to doing the job right.

Grissom service truck parked on a roadside, with red and white company signage on the box side.

Building Lasting Comfort for Local Families

Since opening our doors, Grissom Heat & Air has helped local homeowners keep their homes comfortable through every season. Our team combines decades of industry experience with personalized service and dependable support. We take pride in building lasting relationships with customers across Knoxville and the surrounding area.

What Makes Grissom Heat & Air Different?

Choosing an HVAC contractor comes down to trust, service, and the quality of the work being performed. Homeowners continue to choose Grissom Heat & Air because we focus on the details that make a difference:



  • Quality Materials & Workmanship - We use dependable products and pay close attention to each step of installation to support your HVAC system's long-term performance. It’s why we continue to have such positive reviews.
  • We Stand Behind Our Work - Every service call and installation is completed with care and professionalism. Homeowners can feel confident knowing we are committed to delivering lasting value.
  • Easy Communication - Reaching us is simple through phone, text, or email, making it easy to get answers and schedule service.
  • Proven Industry Experience - More than 40 years in business and over 50 industry awards speak to the consistency of our work. Homeowners benefit from a team that has seen and solved a wide range of heating and cooling challenges.
Man in dark suit holding framed award in front of red curtains

Experienced Technicians You Can Trust

HVAC systems aren't something most homeowners think about until there's a problem. That's why experience matters. Our technicians bring decades of hands-on knowledge to HVAC inspections, maintenance, repairs, and installations. We'll always take the time to explain our recommendations so you can make informed decisions about your home.

Our HVAC Services

Every property has different comfort needs, which is why we provide a variety of residential and commercial HVAC solutions. Below are a few of the services homeowners and business owners call us for:



  • HVAC Repair Services - Fast, accurate repairs help restore comfort when heating or cooling equipment stops performing as expected. Our technicians identify the issue and recommend practical solutions that support reliable operation.
  • HVAC Inspections - Routine inspections help uncover developing problems before they affect comfort or efficiency. These evaluations also provide homeowners with a clearer picture of system health.
  • AC Installation Services - Whether you're replacing an aging system or upgrading equipment, we help match homeowners with solutions that fit their needs and budget. Proper installation supports dependable long-term performance.
  • Heating Services - Furnace repairs, maintenance, and replacement services help keep homes comfortable during colder weather. Our team works with a variety of heating systems throughout the area.
  • Heat Pump Repair - Heat pumps play an important role in year-round comfort. Prompt repairs help restore efficiency and keep systems operating properly through changing seasons.
  • Heating System Conversion - Some homeowners choose to upgrade or convert their heating equipment to better fit their comfort preferences and energy goals. Our team can help evaluate options and complete the transition.
  • Air Filtration & Air Purifiers - Indoor air quality solutions help reduce airborne particles and improve overall comfort inside the home. Cleaner air can contribute to a healthier living environment for many families.
  • Duct Repair & Replacement - Damaged or aging ductwork can impact airflow and system efficiency. Repair and replacement services help deliver conditioned air where it's needed most.
  • Commercial HVAC Services - Local businesses rely on dependable climate control for employees, customers, and daily operations. Our team provides commercial services tailored to a variety of properties.
  • Emergency HVAC Services - Quick response helps minimize downtime and restore comfort when unexpected heating or cooling issues arise.
  • Comfort Care Preventative Maintenance Program - Scheduled HVAC maintenance each year helps reduce wear, improve efficiency, and support longer equipment life. Regular service appointments also help catch small concerns early.

Why Choose Grissom Heat & Air?

Grissom Heat & Air delivers a complete range of heating and cooling services backed by more than 40 years of experience. Homeowners benefit from knowledgeable technicians, quality materials, responsive communication, and dependable solutions. Our commitment to customer care has earned the trust of families throughout Knoxville and the surrounding area.

Contact Grissom Heat & Air Today

Whether you need HVAC repair services, routine maintenance, or a new system installation, our team is ready to help. Grissom Heat & Air provides dependable service and practical solutions designed around your comfort needs. Contact us today to schedule an appointment and experience the difference we can make.

 To learn more, contact us today.
(865) 922-9401