John Mainville

John Mainville is a seasoned professional with extensive experience in the plumbing and heating industry, as well as in business development. Currently serving as a Business Development Specialist and Account Manager at Ongweoweh Corp since April 2019, John has previously held positions at Vixxo and First Service Networks, where responsibilities included estimating, managing service lines, and negotiating contractor pricing. John's earlier roles as a Master Plumber and Lead Plumbing & Heating Technician provided a strong foundation in installation and repair of plumbing and heating systems, along with supervisory and management skills. John holds an Associate's degree in Business Administration from Tompkins Cortland Community College.