Let me share the ugly truth: the majority of HVAC failures take place because someone ignored a step. Didn’t calculate the load correctly. Used undersized equipment. Miscalculated the insulation needs. We’ve fixed hundreds of these messes. And every time, we remember another insight. Like in 2017, when we started adding smart thermostats to every system. Why? Because Sarah, our lead tech, got sick of watching homeowners waste money on bad temperature settings. Now clients save 20-30% yearly.