A heat pump is the only piece of equipment in your home that works both seasons, which means it accumulates roughly double the runtime of a furnace or an air conditioner. Air 911 Heating and Cooling LLC covers it end to end: heat pump repair and maintenance and heat pump installation.
Heat pumps suit the Chattanooga climate well. Our winters are mild enough that a heat pump spends most of the heating season in its efficient range instead of leaning on auxiliary heat. Getting that balance right depends on correct sizing and a properly configured changeover point.
We service reversing valves, defrost boards, auxiliary heat strips and refrigerant circuits, and we install Armstrong, Rheem, Lennox and Trane heat pump systems. Our technicians are NATE certified and licensed in Tennessee, Alabama and South Carolina.
Pick the service that matches your situation, or call and we will point you to the right one.
Defrost Faults, Weak Heat, Icing
Reversing valve problems, defrost control failures, auxiliary heat that runs when it should not, and refrigerant charge issues. Heat pumps need seasonal service twice a year, and we cover both the cooling-side and heating-side checks.
Heat Pump Repair & MaintenanceNew Systems & Changeovers
Sizing a heat pump means balancing cooling load against heating load, because one system has to satisfy both. We run the calculations, set the balance point, and configure auxiliary heat so it only engages when it is genuinely needed.
Heat Pump InstallationNot sure where to start? Here is how we would think about it.
A heat pump has components no other residential system has. Diagnosing one well means understanding how they interact across two operating modes.
Air 911 Heating and Cooling proudly serves Chattanooga, TN, and the surrounding areas, including:
If you need reliable heating, cooling, or indoor air quality services, we’re your trusted local experts.
Twice a year. A heat pump runs in both seasons, so it needs a cooling-side check in spring and a heating-side check in fall. That covers roughly double the runtime a furnace or air conditioner sees.
Heat pump supply air is cooler than furnace air by design, so it can feel cool even when the system is working correctly. It can also be a normal defrost cycle. If it persists, the reversing valve, refrigerant charge or defrost control needs to be checked.
Yes. Our winters are relatively mild, so a heat pump spends most of the heating season operating efficiently rather than relying on auxiliary heat. Correct sizing and a properly set balance point are what determine the result.
We install Armstrong, Rheem, Lennox and Trane heat pump systems, and we are an Armstrong ProTeam Dealer. We repair and maintain most major brands regardless of who installed them.
A heat pump that is sized correctly, charged correctly and staged correctly is one of the most efficient ways to heat and cool a Chattanooga home. Air 911 Heating and Cooling LLC has the diagnostic depth to keep one running that way.
Call us or request a free estimate. We will diagnose what the system is actually doing before recommending anything.
© Red Barn Media Group 2026