Scottsdale, Arizona
Water can show up a long way from the pipe that is losing it. Leak detection traces it back to the source, whether that is a fixture, a wall, the line in the yard or the slab.
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North Phoenix officeServing Scottsdale
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Finding comes before fixing
Trident Plumbing & Drain offers leak detection to find where water is escaping anywhere on the property: at fixtures and their connections, inside walls and ceilings, along the supply line in the yard or in piping beneath the slab. Service is arranged through our North Phoenix office.
Leak detection is about locating the leak. Our Scottsdale slab leak repair guide covers what comes next when the findings confirm a leak beneath the slab. If the source is somewhere else, the repair follows that finding instead.
Start with what you can see
A toilet that refills when nobody has used it, a damp cabinet floor under a sink or a stain at the base of a tub can point to a leak at a fixture or its supply connection. These are worth ruling in or out before looking further.
Note which fixture is involved and when the moisture appears. Once found, these leaks are fixture repairs, and the local toilet repair guide looks at a toilet that keeps running in more detail.
Stains that travel
Water from a pipe inside a wall or above a ceiling can run along framing before it shows. A ceiling stain or damp patch of drywall may sit some distance from the leaking pipe, so cutting into the wettest spot is not a reliable way to find it.
Tell the office when the stain appeared, whether it grows after a particular fixture is used and whether it has dried and returned. The inspection looks at moisture, water damage and the plumbing serving that area to narrow the source.
Outside the house
A leak on the water line in the yard may never show indoors. Unexplained water use, lower pressure throughout the house or ground that stays wet along the line's route are reasons to include the outside plumbing in the search.
Scottsdale Water describes a meter flow test: with nothing using water, record the meter, wait without using any water and look again. If the reading or the leak indicator has moved, something on the property is drawing water.
Beneath the floor
Warm areas of flooring, running-water sounds with every fixture off or moisture coming up through a floor can suggest a leak in piping under the concrete. None of these proves it alone; detection equipment and the plumbing layout help confirm whether a slab line is the source.
A confirmed slab leak moves the conversation to repair: how to reach the line, whether rerouting is an option and what restoration is involved. Those decisions belong to the slab leak repair guide; this stage is about finding and confirming the source.
Data before digging
Scottsdale Water is moving its meters to hourly readings through an advanced metering network. As of December 2025, the City says about 67% of customers had hourly data, which they can view in the free WaterSmart portal along with leak alerts. Its 2026 report credits those alerts with helping customers prevent an estimated 35 million gallons of water loss in 2025. The City also cautions that alerts can be delayed or missed, so treat them as a prompt to check, not proof that nothing is leaking.
Hourly use is useful evidence. Use that never drops to zero overnight points to a constant leak, while short repeating spikes may be irrigation or a toilet refilling. High bills most often trace to a malfunctioning irrigation system or a leaky pipe or toilet, the City says. Note which side of the meter the trouble may be on as well: up to the meter the line is the City's, and past it the line is yours.
Detection costs
Finding a leak takes as long as the evidence allows. These factors set the length of the search.
Your insurer can tell you what the policy covers; ask before repairs start. Scottsdale Water's rebate table lists a smart home water monitor rebate for single-family homeowners, but a notice on the same page says it will return when the new rebate season launches; check its status before buying a monitor.
Leak clues
Scottsdale Water's metering, ownership rules and pressure figures all help narrow down where water is going.
Customers with hourly data can view it in the free WaterSmart portal and receive leak alerts. Steady use when nothing is running is worth bringing to a leak visit.
Source: Scottsdale Water, WaterSmart (opens in a new tab)The City owns the service line from the main to the meter. The line after the meter, through the yard to the house, is the property owner's.
Source: Scottsdale Water, Drinking Water (opens in a new tab)High pressure at the house strains fittings and supply lines. The City lends gauges free of charge so you can check yours.
Source: Scottsdale Water, Maintenance, Prevention and Troubleshooting (opens in a new tab)Your local team
Our North Phoenix office serves Scottsdale. Call about your address, tell us what needs attention, and we'll help you arrange service.
Explore Scottsdale on the map (opens in a new tab)Your North Phoenix team
Tell our North Phoenix office where you have seen moisture or what the meter showed, and we can arrange leak detection at your Scottsdale property.
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From a Trident customer
We had one of those Saturdays that started out great until water starting coming out of one of our ceiling lights… she sent Quintin who got right on the problem and had us all fixed up in no time.
Answers before you book
Questions about leak detection in Scottsdale? Start here, or tell us what is happening at your home.
Ask our teamNo. Leak detection finds where water is escaping anywhere on the property. Slab leak repair is the work that follows when that search confirms a leak in piping beneath the concrete.
Yes. Water can travel along framing or pipes before it soaks through, so the stain marks where water collected rather than where it escaped.
If the meter moves while nothing is using water, something on the property is drawing water. It does not show where; that is the purpose of the leak detection visit.
Yes. When the signs point outdoors, such as higher water use with no moisture inside, the supply line between the meter and the house is part of the search.
It can point to one. The City's WaterSmart portal shows hourly use for customers whose meters support it and can send leak alerts. The City notes alerts can be delayed or missed, so a meter check or a leak detection visit confirms what the data suggests.
The property owner. The City owns the service line from the main to the meter, and the private side after the meter is the owner's responsibility. A leak on the City's side of the meter is one to report to Scottsdale Water.
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Tell our North Phoenix office where you have seen moisture or what the meter showed, and we can arrange leak detection at your Scottsdale property.