💧 WellWaterData

Find Licensed Well Drillers & Test Your Well Water

A free directory of 3822 licensed well drillers and pump installers, built from state licensing records — plus straight answers on testing and treating private well water.

Get your well water tested

Private wells aren't covered by public water regulations — annual testing for bacteria, nitrates, and local contaminants is on you. Get a certified lab test kit or a treatment quote for your area.

Find testing & treatment options →

Browse by state

Pennsylvania (222 pros)Texas (1740 pros)Wisconsin (1860 pros)

About this directory

Roughly 13 million U.S. households rely on private wells that no public utility monitors. WellWaterData compiles licensed well professionals directly from state licensing boards and pairs them with practical testing and treatment guidance, so well owners can find qualified help and keep their water safe. Currently covering 307 counties across 3 states, expanding weekly.