Need a new well, a pump repair or a well inspection in Collin County, TX? Collin County has about 1,254,658 residents (2024 estimate) and 23 incorporated cities and towns. Describe your project once: licensed well drillers who work in Collin County get back to you.
Well permits in Collin County are issued by the state or the county health department, depending on local rules.
Services available in Collin County
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New water well
Drilling, casing and development of a new water well, with the state well permit and log.
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Well pump installation or repair
Installation, replacement or repair of the well pump, pressure tank and controls.
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Well inspection or rehabilitation
Inspection, cleaning, deepening or proper abandonment of an existing well.
Frequently asked questions in Collin County
Do licensed well drillers cover the whole of Collin 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 Texas: 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.