Hydrotech was founded in 1984 in Sag Harbor, New York by local resident Christian Haerter, who saw a growing need in the community for a full service residential and commercial water treatment company.
The oldest and most trusted name in water purification systems on Eastern Long Island. Hydrotech designs, installs, and maintains a full line of state of the art water purification and treatment equipment to protect the health of your family. Serving the South Fork of Long Island from Hampton Bays to Montauk, including Shelter Island, since 1984.