Need a new well, a pump repair or a well inspection in Contra Costa County, CA? Contra Costa County has about 1,172,607 residents (2024 estimate) and 19 incorporated cities and towns. Describe your project once: licensed well drillers who work in Contra Costa County get back to you.
Well permits in Contra Costa County are issued by the state or the county health department, depending on local rules.
Services available in Contra Costa County
-
New water well
Drilling, casing and development of a new water well, with the state well permit and log.
-
Well pump installation or repair
Installation, replacement or repair of the well pump, pressure tank and controls.
-
Well inspection or rehabilitation
Inspection, cleaning, deepening or proper abandonment of an existing well.
Frequently asked questions in Contra Costa County
Do licensed well drillers cover the whole of Contra Costa County?
Most pros work across the county and neighboring counties. Enter your ZIP code in the form and we match you with pros who serve your exact area.
Well Drilling in California: all counties
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.