What replacing the line from the meter costs.
Between the city’s meter and your house is your pipe, and when it fails the water bill usually finds it first.
Replacing the main water service line from the meter to the house runs roughly $3,000 to $12,000 in the East Valley: labelled a planning range, because published local sources give a per-linear-foot figure for water main work rather than a complete residential replacement price. Length, depth, caliche, and what has to be restored on top drive nearly all of it.
Planning range, flagged honestly: the published Phoenix-metro sources we checked on 2026-08-21 didn’t carry a specific local figure for this job, so this range is built from local plumbing labor rates plus the components involved. Treat it as a sanity check, not a benchmark: get an on-site quote.
How you find out you have one
Usually the bill. A service-line leak runs continuously into the ground, so the first signal is a water bill that jumped with no change in use. Others: a persistently soggy or unusually green patch between the meter and the house, a drop in pressure throughout, or the water meter creeping with every fixture in the house shut off. That last one is a free test you can run tonight, and it’s the one that distinguishes a real leak from a billing question.
Service line or slab leak
Both present as a jumped bill and lower pressure, and they’re different jobs. The rough distinction: a slab leak often produces a warm floor spot (if it’s the hot line) and damp interior flooring, while a service-line leak shows up outside, between the meter and the house, with a wet or green patch above it. A plumber isolates it by shutting the valve at the house and watching the meter: if it still moves, the leak is on the supply side, outside. That’s a ten-minute test and it decides which of two very different quotes you’re about to get.
Where the responsibility line sits
Generally the homeowner owns the line from the meter to the house and the city owns the main and the meter. Before paying for work near the street, confirm the split. Most East Valley cities publish a water and sewer service-line responsibility diagram; your utility’s customer line will point you to it. Occasionally the leak is on the city’s side of the line, and that’s a free phone call worth making first.
Length, depth and what’s on top of the run do nearly all of the work here. Caliche turns digging into equipment time. Grass restores cheaply; a driveway or mature landscaping does not, and that restoration is often the biggest number on the bill. Confirm the line is yours before paying anyone to dig.
Where this page cites a utility, permit or housing figure for a specific town, it’s that town’s published data. Your own city’s water report applies to your tap and your city’s building department sets your permit rules; ask us which apply to your address.
What moves it inside the range.
Distance, depth, and what’s on top.
Local sources price water main work per linear foot. A deep-set house on a long lot costs more than a short front setback.
The cemented caliche layer common in Valley soil turns digging into equipment work.
Grass restores cheaply. A driveway, pavers, or mature landscaping doesn’t, and that restoration is often the biggest number on the bill.
Boring under a driveway avoids destroying it, and trades excavation cost for equipment cost.
Confirm the responsibility split before you pay to dig. Sometimes it’s the city’s side.
Answers, not a brochure.
How do I tell this apart from a slab leak?
Shut the main valve where it enters the house and watch the city’s meter. If the meter still turns, water is escaping upstream of the house. That’s the service line. If it stops, the leak is inside, and a slab leak becomes the likely candidate. Any plumber does this in ten minutes and it decides which job you’re buying.
Why is this range a planning range?
Because the published Phoenix-metro sources we checked give a per-linear-foot figure for water main installation rather than a complete residential replacement cost. Building a whole-job range from that requires assumptions about length, depth, and restoration, so we’re calling it a planning range rather than dressing it up as a benchmark.
Free test first: shut the house valve and watch the city’s meter.