Here's the brutal truth: the majority of HVAC failures occur because someone missed a step. Failed to calculate the load properly. Used incorrect equipment. Got wrong the insulation needs. We've personally fixed hundreds of these messes. And each and every time, we record another insight. Like in 2017, when we decided on adding WiFi controls to every install. Why? Because Sarah, our master tech, got tired of watching homeowners burn money on poor temperature management. Now clients save $500+ yearly.