Let me share the ugly truth: most HVAC failures happen because someone ignored a step. Failed to calculate the load accurately. Used cheap equipment. Miscalculated the insulation needs. Our team has fixed dozens of these disasters. And each and every time, we file away another lesson. Like in 2017, when we started adding smart thermostats to all installation. Why? Because Sarah, our master tech, got tired of watching homeowners lose money on poor temperature settings. Now clients save $500+ yearly.