When master plumber Matt Mertz was hustling to establish himself as a one-man shop about a decade ago, he was pretty excited when his company — Matt Mertz Plumbing in Wexford, Pa. — hit $150,000 in revenue.But the fourth-generation plumber had much more ambitious goals in mind. And by virtually any measure, he’s fulfilled those aspirations in dramatic fashion. Take revenue, for starters: more than $6 million in 2014. In addition, Mertz now employs 29 people — including 12 full-time licensed plumbers — and runs 27 trucks in the area around Wexford, about 15 miles north of Pittsburgh.Moreover, thanks to
