Phoenix metro
Leak Detection in Phoenix, AZ (Including Slab Leaks)
Water bill jumped, a warm spot on the floor or running-water sounds? Tell us what you've noticed and we'll try to connect you with an independent plumber who finds hidden leaks.
Signs of a hidden leak
See your symptom here? Get matched and a plumber can confirm the cause.
A water bill that jumps
Your usage hasn't changed, but the bill has.
A warm spot on the floor
A hot-water line leaking under the slab warms the floor above it.
Running-water sounds, or a moving meter
With everything off, water is escaping somewhere.
Before you get matched
Treat it as urgent if
- Water is spreading or coming through a ceiling
- Water is near outlets or a panel
Have ready
- When the bill rose, and by how much
- Where it's warm, damp or musty
- Whether the meter moves with everything off
Yours or the city's? Leaks in Phoenix
The City of Phoenix handles problems from the street to the water meter. A leak after the meter, in the yard or the house, is yours to fix.
The city's Smart Home Water Guide and your bill's usage history help you spot one.
Official lines
- Water Services emergency hotline
- 602-261-8000When city staff need to turn off your water.
- Customer Services (other issues)
- 602-262-6251Monday to Friday, 8 a.m. to 5 p.m.
Sources (checked October 2026): Contact the Water Services Department · General Service Issues · Outdoor Leaks
If it's a slab leak
The plumber looks at your unit and explains which fits. We don't recommend one or quote prices.
How plumbers find hidden leaks
The tools a plumber may use, in plain words. They choose the method and explain what they find.
- Meter and pressure testsClosing valves one at a time shows which pipe is losing water.
- Acoustic listeningMicrophones pick up escaping water, even through concrete.
- Thermal imagingAn infrared camera shows a leaking hot line as a warm patch.
Ask before they start
Ask the plumber which test they plan to use, what it shows, and how the result will be shared with you before any repair is quoted.
Leak detection help across the Valley
Pick your city to see local plumbing notes, or just fill in the form.
Leak detection questions
Quick answers before you get matched.
Is this page for pool or irrigation leaks?
This page covers leaks in your home's plumbing: slab, under-floor, wall and supply lines. Pool and irrigation leaks go to specialists, so say which you have on the form.
How can I find out where a water leak is coming from?
Turn off every tap, appliance and sprinkler, then see whether the meter dial or leak indicator still moves. If it does, water is escaping and a plumber can pinpoint where.
Will they have to break up my floor?
Not always. Finding the leak doesn't need digging. Whether the repair opens the floor depends on where the leak is and whether rerouting the line works.
Does homeowner's insurance cover a slab leak?
Policies differ: some cover the water damage but not the pipe repair, or the reverse. Call your insurer before work starts and keep photos and the plumber's report.
Suspect a hidden leak? Get matched.
Tell us what you've noticed, like the bill, a warm floor or a sound. If a participating plumber covers your area, they may call with a quote. You decide.