Jacksonville Septic Tank Company is a family-owned business founded by William McInarnay in 1955. William became a charter member of the Florida Septic Tank Association in 1971, now known as The Florida Onsite Waste Water Association. Upon his retirement, the company was sold to his two sons Michael and Gerald, and Jax Plumbing & Septic Tank, Inc. was formed.

Michael McInarnay has been working in the septic tank industry for more than 30 years. He has served on the board of directors of The Florida Onsite Septic Tank Association for 20 years and is a past president as well. He has also served as an alternate on the RRAC (Research Review and Advisory Committee) for the Bureau of Onsite Sewage Programs. Michael is a state-licensed contractor in good standing.

Gerald McInarnay was a state-licensed plumbing contractor who worked in the Jacksonville area for over 40 years. He was an instructor for the NEFBA (Northeast Florida Builders Association) plumber’s apprenticeship program for five years and was well known and respected in the plumbing industry. Gerald was taken from us too soon and left us in 2016 after complications following a heart surgery.

Michael and all of Jax Plumbing & Septic Tank, Inc. would like to honor William and Gerald by dedicating this website to their loving memory. We kindly invite you to learn more about them here.

The Jax Plumbing & Septic Tank, Inc. team takes great pride in the work they do and the relationships that we build with customers. Give us a call for any of your plumbing and septic tank needs.