Exclusive: A founder who went from pressure washing to Wharton just raised $40 million to put AI to work for plumbers, electricians, and HVAC crews

George Eliadis really knows his way around a pressure washer. 

The 24 year-old spent six summers pressure washing houses in upstate New York with his dad. Now he has a Wharton degree, and just raised $40 million from two of the most competitive names in venture capital to fix blue-collar and home services problems at scale.

Probook, his New York-based startup, raised a $34 million Series A led by Andreessen Horowitz and a $6 million seed led by Sequoia Capital, which also participated in the A, Fortune learned exclusively. The company is building what Eliadis calls an AI operating system for home service businesses—the HVAC shops, plumbing outfits, and electrical contractors that collectively power a $700 billion industry.

The pitch starts with a grievance. Over the last few years, home service operators were sold an explosion of AI tools—voice agents, chat widgets, follow-up bots. They ended up with five vendors and bills growing faster than the revenue those tools promised. According to Eliadis, none of these products were built for dispatch—the part of the business where an operator decides which of 40 technicians goes to which of 150 jobs, in what order, with what expected ticket size. 

“Dispatch is the brain of every home service business,” he told Fortune. “That’s where customer experience is made or broken.”

So Probook built the scheduling brain first, then layered on everything else—answering calls, cleaning up job data, sending customer updates—in one connected system. The early numbers are promising: an Indiana customer with 14 locations........

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