"The Proper Diagnosis": Oklahoma contractor sets high standards for locating and leak detection services while building his business from the ground up. Hi-Tech Plumbing & Leak Detect, Inc. was established with a focus and emphasis on leak detection and locating. Founder Jamey Mullin grew up in the plumbing industry. His father, Jim Mullin, owned a plumbing company in Tulsa and Jamey eventually opened his own subsidiary, Mullin Plumbing, in Oklahoma City in 1994. He sold that company in 2000 and launched his new venture a year later after noticing the emergence of new leak detection technology and a decided lack of companies serving the growing market.