865 HVAC is available to handle any emergency HVAC service in Knoxville, TN. Like any appliance in your home, your HVAC system can break down with repeated use. Summers are hot in Knoxville, so your air conditioning gets a workout.

Winters are cold, which also requires a reliable HVAC system. When your unit stops working as it should, it can leave your home or small business uncomfortable. We provide both maintenance and repairs on most HVAC systems, to help keep your interior pleasant year-round.