When it comes to HVAC systems, one component that often requires attention is the evaporator coil in a furnace. If you're wondering how much it should cost to replace an evaporator coil in your furnace, you've come to the right place. In this comprehensive guide, we'll break down the factors that influence the cost, provide you with a detailed overview of the replacement process, and offer insights to help you make an informed decision. Understanding the Evaporator Coil Before we delve into the cost of replacing an evaporator coil, let's first understand what it is and its role in your furnace. The evaporator coil is a vital component of your HVAC system responsible for cooling the air inside your home. Located inside the air handler or furnace, the evaporator coil plays a crucial role in the heat exchange process. Factors Influencing the Cost Several factors can impact the cost of replacing an evaporator coil. It's essential to consider these variables to get a bet