"A Family Tradition of Integrity and Excellence"

Welcome to Tanko Bros!

We are a family-owned well drilling and pump service company that operates in the counties of Tuolumne, Calaveras, and Mariposa.  From the drilling of new wells to the maintenance of pump systems, our crews utilize reliable, superior methods to ensure the job is safely and properly completed.  We handle all phases of the water system, so there's no need to worry about trying to install a piece of equipment on your own.  All you have to do is watch the water flow!  Of course, if you do have questions regarding any part of the process, we will be more than happy to answer them.  You can count on our 70 years of unparalleled experience and our second-generation staff to attend to all aspects of your thirst for pure water.  So give us a ring today, and you'll be glad you did.  Your well will soon become one of your most valuable possessions!