About Us

Who We Are

Family owned and operated since 2001. We strive to make sure each customer is happy and satisfied. Today HCS is one of Knoxville’s premier heating and air conditioning repair and installation companies. We got here with hard work, honest prices, and superior customer service. From winter’s chill to the long hot August nights, our singular focus is the comfort of your home and family. We value the reputation we have earned over the last 20+ years. You can count on us!

Years Experience
0 +

What make HCS different from the competition?

Many service companies today train their technicians to always recommend a new system, even if their current one can be repaired. In fact, some even refer to themselves as “Sales Technicians.”

We believe our role is to serve and educate you throughout the process. That’s why our service technicians have trucks that are well-stocked with parts. Deciding when to replace your furnace or air conditioner should be entirely up to you.

21 +

Years Experience

1000 +

Project Done


From new construction to residential/light commercial, HCS is always looking out for our customers. We understand cost is a main concern to most of our customers. We will never try to sell you something you do not need. We offer financing to help our customers. Comfort is our main goal. Quality products and service is our promise to you.

1000's of



Active New Construction



About Me

Who I Am

The owner, Jim Mikels Jr. was born and raised in Knoxville, TN. He is a veteran and a grandfather to 7 amazing grandkids. Jim prides himself on the good-ole-boy system and knows all of his clients on a first name bases. He has built this company over the last 20 years and he knows the ends and outs of the HVAC business. What started out as a small business turned into a way of life for Jim. He is one of the very few people, let alone owners of a company, who will answer their phone on a Sunday afternoon to get a customer heating and air fixed on those emergency very hot or extremely cold days.