This is the harsh truth: the majority of HVAC failures occur because someone skipped a step. Failed to calculate the load accurately. Used undersized equipment. Miscalculated the insulation needs. We've fixed dozens of these messes. And each and every time, we record another learning. Like in 2017, when we decided on adding smart thermostats to every installation. Why? Because Sarah, our lead tech, got frustrated of watching homeowners burn money on inefficient temperature settings. Now clients save 20-30% yearly.