David Ratliff’s Midway Plumbing is a quarter-century old, but it has lasted that long by doing new things. He launched the business mainly to install plumbing in new construction, but a decade and a half later he shifted entirely to service work.Since then, the business, based in Abilene, Texas, has specialized even more, focusing on trenchless sewer line replacement and, more recently, trenchless water line replacement. Ratliff never stands still – he uses new technologies as stepping stones to more innovation.“What we can do now is so much different than what we could do nine years ago,” he says. “We
