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The Robby field notes.
Long-form conversations with the operators running the best home services companies in America.
Business Growth
Single Source of Truth: How Southern Air's Team Built a 20-Year Software Stack — Then Supercharged It with Claude
Paul Denham, CEO of a 1,000-person mechanical contractor, on 20 years of custom software and an AI nameplate reader hitting 98–99% accuracy where OCR failed at 60%.
Robby Team · Jun 28, 2026 · 11 min read
Business Growth
The AI That Works Is the AI Nobody Sees: How Harley's Heating & Air Runs on Invisible Automation
Three generations of the Shortridge family on running a Lincoln, Nebraska HVAC shop where the best automations are the ones customers never notice.
Robby Team · Jun 20, 2026 · 9 min read