Underground Water Line Repair in Phoenix

The yard or the bill usually tells you first. A patch of grass that stays green in June, a soft or sunken spot between the meter and the building, water seeping at the foundation, a hiss at the meter box, a sudden drop in pressure across the whole property, or a bill that jumped with no change in use. To confirm it, shut off every fixture and watch the meter, then close the building's main valve. If the meter keeps moving with the building valve closed, the leak is in the buried line between the two. See signs a wet lawn means a broken water line.

At the meter. Phoenix Water Services says everything from the street to the meter is the city's and everything after it is the owner's. The city builds its side to its own standard, Type K copper for meters under 3 inches and ductile iron for 3 inches and larger. Your side is whatever went in when the building did, which in older Phoenix neighborhoods can be galvanized steel, and in newer ones copper or plastic.

The meter itself stays put. City Code 37-53 says only the Department may move or remove a meter, and if anyone else does, the city shuts off the water until the customer pays to put it back. So if a repair would be easier with the meter somewhere else, that is a request to Water Services, not a plumber's job. Water bubbling up inside the meter box or in the street is also the city's; call 602-261-8000.

This is the step most owners miss. Under the federal Lead and Copper Rule Revisions, Phoenix inventoried every service line, submitted the inventory to ADEQ in October 2024, and posted it online for public view. If your line is listed as galvanized requiring replacement, the city says it will schedule the replacement from the city meter box to the hose bib or connection at the house or building, and cover the entire cost. The city stopped installing galvanized service lines in 1983, so homes and buildings older than that are the ones to check. Lines listed as unknown get a second verification. If yours is on the list, that is a free new line; if it is copper or plastic, the repair is yours. Look up your address in the online inventory, or email pipes@phoenix.gov. The city also says it has found no lead service lines in its field work since 2021.

It depends on the pipe and the history. A single break in an otherwise sound copper line gets dug, cut out, spliced and tested. A galvanized line that is not on the city's list, a plastic line that has split in two places, or a run under a driveway is often better replaced than chased, either by trenching or by pulling new pipe through the old path where soil and fittings allow; see trenchless water line replacement.

Phoenix adds two rules that apply to every replacement. The section that rises out of the ground to the building or a hose bib has to be metal, because the city's 2024 code amendment bars exposed outdoor plastic water pipe. And if the static pressure is over 80 psi, the city's design manual requires a pressure reducing valve on your side of the meter. A new line under full street pressure with no working regulator is a new line on a timer.

Stopping a leak is exempt from a Phoenix permit. Replacing a defective buried line with new pipe is new work, so it needs a permit, and the new pipe gets an underground inspection before backfill. Anything in the street or the public right-of-way is a separate permit. Before we dig, Arizona law requires a utility locate; operators mark their lines within two working days, and the marks are good for fifteen working days. Then we dig, repair, pressure test, flush and restore the surface. For long or deep runs see the property owner's side of trench safety.

Commercial sites often have more than one service: a domestic meter, a landscape meter and separate building feeds, and City Code 37-53 has required a separate meter for landscaped areas over 10,000 square feet on services set up since 1990. We trace which service is leaking before anyone digs. Tell us about tenants and any shutdown limits before we schedule. See commercial water line repair, HOA plumbing and apartment main line breaks.

If the leak is at the meter or in the street, the city fixes it. If the green patch is over an irrigation line, it is a sprinkler repair, not a service line. If the only symptom is low pressure, check the regulator, the main valve and any whole-house filter first; see low water pressure in the whole house. And if your line is on the city's galvanized list, wait for the city.

Call with the address, where you see water, and whether the water is still on. We offer 24/7 emergency service, free estimates and upfront pricing before work starts. Our leak detection and Phoenix leak repair pages cover leaks inside the building, and the Phoenix service area page covers the rest of what we do here.