Celebrating 80 years in the plumbing business, Ongaro & Sons, Inc. is operated today by the third generation of Ongaro family members. Like their predecessors, today's Ongaros carry on the long-standing family tradition of high-quality plumbing maintenance and installations and customer service. Commerce' Business of the Year with an A + rating with the Better Business Bureau. In addition to the neighborhoods below, Ongaro also serves Sonoma county. State License #215233.