16 reports. Useful first pass, but one outlier can still shift the range.
Water Main Line Replacement Cost in the NeighborPrices database
Read what 16 homeowners actually wroteWater main line replacement costs typically range from $225 to $18,000, with most homeowners paying around $3,500 according to local pricing data. The middle 50% of projects fall between $1,450 and $7,600, which can help you budget for this service depending on your specific situation.
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Shaded band: middle 50% of reports (25th–75th percentile). Median tick in teal.
Most jobs land between $618.75 and $12,000.00 (5th–95th percentile). Ignoring 1 outlier below and 1 above.
Based on reports from Apr 2026 (first entries this month).
Data last updated Apr 8, 2026.
Related exact job types inside Water Main Line Replacement
Start broad with the canonical service, then move into a narrower subtype when the exact job matters.
Latest reports
The underlying prices behind this page.
Got quoted to replace the rubber water supply line with a brass saddle around the 4" main water pipe in Daly City.
Was quoted $6k to replace the entire waterline from house to sidewalk.
Real homeowner write-ups, locked.
"Had to pay a plumber around to fix a water line leak after some digging work near the house foundation."
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Related in Plumbing: Water Heater Installation, Sewer Line Replacement, Drain Cleaning, Repiping.