Need a lead service line check or replacement in St. Louis County, MO? St. Louis County has about 992,929 residents (2024 estimate) and 87 incorporated cities and towns. Describe your project once: licensed plumbers who work in St. Louis County get back to you.
Each water utility serving St. Louis County publishes its own service line inventory and replacement program.
Services available in St. Louis County
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Lead service line replacement
Replacement of the private side of a lead or galvanized service line, coordinated with the water utility.
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Service line material check
Identification of the service line material at the meter and the entry point, for the utility inventory or a purchase.
Frequently asked questions in St. Louis County
Do licensed plumbers cover the whole of St. Louis 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.
Lead Pipe Replacement in Missouri: 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.