We place sensitive microphones on the floor or wall to hear the sound of water escaping under pressure. This is the primary tool for slab leak detection Phoenix and underground line leaks.
Leak Detection Phoenix, AZ: Find Hidden Leaks Fast
When water shows up where it shouldn't, leak detection Phoenix AZ is how we find the source without tearing your house apart. We handle slab leaks, water line leaks, and hidden pipe failures for homeowners and businesses across Phoenix, Arizona.
Serving Phoenix and nearby areas.
How big is the leak detection job?
Under slab
The leak is under the floor and needs acoustic and pressure testing.
- 1. Single fixture One fixture or short section of exposed pipe is losing water.
- 2. Under slab The leak is under the floor and needs acoustic and pressure testing.
- 3. Multiple zones Several lines or a whole system is suspect; we map it first.
Drag the needle to compareTouch and drag the needle
- 10Services from one local team
- 25Areas served around Phoenix
- Listen firstAcoustic testing before any opening
- Confirm twiceTwo methods before we mark the spot
What Our Leak Detection Service Includes
Every leak detection visit includes a full system assessment, non-invasive testing, and a clear explanation of what we found.
Work order
Leak Detection- Full System Pressure Test: We isolate the water system and pressurize it to confirm there is a leak. This step tells us whether the problem is on the supply side or the drain side and helps us choose the right detection method for your Phoenix home.
- Acoustic and Thermal Detection: We use listening discs and thermal cameras to trace the leak without opening walls or breaking slab. These tools pick up the sound of water escaping under pressure and the temperature difference caused by a hot water leak.
- Drain Camera Inspection: For drain leaks, we run a RIDGID drain camera through the line to see cracks, root intrusion, or separated joints. You see the footage on the monitor and we explain what it means for your repair.
- Written Findings and Repair Plan: After detection, we give you a written summary of what failed, where it is, and what it takes to fix it. You get a clear price for the repair before we start. No surprises, no pressure.
- Same-Day Repair Option: If you approve the repair, we can often complete it the same day. Our trucks carry copper pipe, PEX tubing, CPVC pipe, fittings, solder, and press tools. We pressure-test the line after the repair and restore water before we leave.
What the first leak detection visit covers
First visit
We isolate the system, pressure-test it, and use acoustic and thermal tools to find the leak. You get a clear explanation and a repair plan.
Leak detection for Phoenix homes
We find hidden leaks in houses, condos, and townhomes across the Valley.
Slab leak
Warm floor spots or a spiking water bill.
Wall leak
Bubbling paint, musty smell, or soft drywall.
Water line leak
Wet soil between the meter and the house.
Drain leak
Sewer smell or slow drains under the slab.
Leak detection for Phoenix businesses
We work with property managers, restaurants, and retail spaces to find leaks fast.
Restaurant
Grease lines and supply lines under slab.
Retail
Hidden leaks in restrooms and utility rooms.
Office building
Water line and drain leaks in common areas.
Leak Detection Phoenix AZ: What It Is and Why It Matters
A hidden leak wastes water, damages your property, and drives up your bill. Finding it properly the first time saves you from guesswork and unnecessary demolition. We find the source, explain it clearly, and repair it right.
Leak detection Phoenix AZ is the process of locating hidden water leaks in your plumbing system using acoustic listening equipment, thermal imaging, pressure testing, and drain cameras. It is needed when you see unexplained moisture, a spike in your water bill, the sound of running water when nothing is on, or warm spots on the floor that point to a slab leak. We start by isolating the system, then narrow down the source until we know exactly where the water is escaping.
Phoenix homes sit on slab foundations and clay soil that shifts with our extreme temperature swings, which puts constant stress on copper pipe and PEX tubing under the floor. A pinhole leak in a copper line can waste thousands of gallons before you notice it. If you search for water leak detection near me Phoenix, Arizona, you want a crew that knows how these systems fail. We have been finding and fixing leaks here since 2008.
- What it is
- Locating hidden water leaks with acoustic and thermal tools.
- When it helps
- When you see moisture, hear water, or your bill spikes.
- What you get
- A pinpointed leak location and a clear repair plan.
Our Leak Detection Process
Every leak is different, but our process follows the same proven steps.
Tools and Methods We Use for Leak Detection
Each method answers a different question. Together they leave very little to guess.
Thermal cameras show temperature differences caused by hot water leaks under slabs or behind walls. They help us narrow the search area before we open any surface.
We run a camera through drain lines to see cracks, root intrusion, and separated joints. You see the footage on the monitor so you understand exactly what failed.
We isolate sections of the plumbing system and pressurize them to confirm a leak and measure how fast pressure drops. This tells us the size and severity of the leak.
For repairs, we use a Milwaukee press tool to make secure connections on copper and PEX tubing without open flames. It is faster and safer than soldering in tight spaces.
When to Call for Leak Detection in Phoenix
You hear water running when all fixtures are off, and the meter is still spinning.
We isolate the system and use acoustic listening equipment to trace the sound to its source.
HomesYour water bill doubled from one month to the next with no change in usage.
We pressure-test the system and check every fixture, including toilets and hose bibs.
HomesYou see a warm spot on the floor or notice cracks in tile that were not there before.
A warm spot usually means a hot water line is leaking under the slab.
HomesYou smell musty air in a room or see bubbling paint on a wall.
We use moisture meters and thermal cameras to map the moisture behind the wall.
Homes
How Leak Detection Works in Phoenix
Phoenix plumbing has its own set of challenges. Our soil is expansive clay that swells and shrinks with moisture, which puts stress on underground pipes. Summer heat drives water temperatures in exposed lines above 120 degrees, accelerating corrosion in copper pipe.
Willo Historic District
Many homes here have original copper plumbing from the 1920s and 1930s. We use gentle detection methods to avoid damaging historic features.
Ahwatukee Foothills
Slab-on-grade homes with copper lines under the slab. The soil here is rocky and shifts, causing stress on pipes. Slab leaks are common.
Desert Ridge
Newer construction with PEX tubing and CPVC. Leaks often happen at fittings or where lines pass through the slab.
- Willo Historic District
- Ahwatukee Foothills
- Desert Ridge
- Encanto
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoSlab Leak Under Kitchen Tile
Before: The tile was starting to crack along the grout lines.
After: We used acoustic equipment to pinpoint a pinhole leak in the hot water copper line under the slab. We repaired the pipe, pressure-tested it, and restored the tile.
Underground Water Line Leak
Before: A property manager in Downtown Phoenix had water pooling near the foundation of a commercial building. The landscaped area stayed wet even after days without rain. The irrigation system was ruled out.
After: We traced the main water line with acoustic gear and found a crack in the copper pipe 3 feet from the meter. We excavated, replaced the section with new copper, and backfilled. The pooling stopped immediately.
Pinhole Leak Behind Bathroom Wall
Before: A homeowner in Ahwatukee Foothills saw bubbling paint on the bathroom wall and smelled a musty odor. The drywall was soft to the touch. The leak had been running for weeks.
After: We used thermal imaging to find the leak in a copper line behind the wall. We opened the wall at the exact spot, repaired the pipe, and dried the cavity. The wall was patched and painted. No mold was found.
Common Leak Problems We Solve in Phoenix
Phoenix plumbing systems take a beating from hard water, extreme heat, and soil movement.
Slab leak under tile or carpet
Water saturates the soil under your foundation, causing shifting, cracked tile, and mold growth. The longer it runs, the more expensive the repair becomes.
Pinhole leak in copper pipe behind a wall
A pinhole leak sprays a fine mist inside the wall cavity, soaking drywall and insulation.
Water line leak between meter and house
An underground leak on the main water line wastes thousands of gallons and can undermine your driveway or walkway.
Running toilet or dripping fixture
A running toilet can waste 200 gallons a day. It also keeps water moving through the drain system, which can mask a real leak during detection.
Why Professional Leak Detection Pays Off
A hidden leak never fixes itself. It corrodes fittings, warps flooring, and feeds mold.
Stop Water Damage Early
A slow leak under a Phoenix slab can soak drywall, baseboards, and cabinets for weeks before you see it.
Cut Your Water Bill
A pinhole leak in a copper line can waste 10,000 gallons or more per month. That shows up fast on a Phoenix water bill.
Protect Your Foundation
Water under a slab softens the soil and causes shifting that cracks tile and drywall.
Avoid Mold and Air Quality Issues
Mold needs 24 to 48 hours of moisture to start growing.
Leak Detection Pricing in Phoenix
Leak detection pricing in Phoenix depends on the type of leak, how accessible the lines are, and how long it takes to pinpoint the source.
Included
Quoted after a first look
- Full System Pressure Test
- Acoustic and Thermal Detection
- Drain Camera Inspection
- Written Findings and Repair Plan
What changes the scope
Quoted after a first look
- Type of leak
- Accessibility
- System complexity
- Repair scope
What you receive
Clear records you can keep and share.
Findings summary
A written note of what we found and where.
Camera footage
Video of the drain line if a camera was used.
Repair plan
A clear outline of the repair and its cost.
18 Years of Leak Detection Experience
Phoenix On Call Plumbing has been finding and fixing leaks in Maricopa County since 2008.
Pressure gauge
We watch the gauge to see how fast pressure drops and which zone is losing water.
Acoustic reading
We listen for the sound of water escaping and compare it across sensors to find the spot.
Thermal image
We read temperature differences on the floor or wall to spot hot or cold water leaks.
Are you in our service area?
Type your ZIP or town to check. If you're not listed, call and ask.
Phoenix ZIP codes
- 85009
- 85003
- 85006
- 85007
- 85004
- 85083
- 85086
- 85087
- 85085
- 85331
- 85033
- 85306
- 85308
- 85020
Towns we serve.
Based in Phoenix and covering the places around it. Pick one for local details.
What Phoenix Customers Say About Our Leak Detection
We noticed a warm spot on the kitchen floor and called Phoenix On Call Plumbing. They used acoustic equipment and found a slab leak under the tile in about an hour. They repaired the copper pipe the same day and pressure-tested it before they left. Our water bill went back to normal the next month. No guesswork, no unnecessary demolition.
One of our commercial tenants had water pooling in a back room. The team came out, ran a camera through the drain line, and found a separated joint under the slab. They gave us a clear price, fixed it the next morning, and had the tenant back in business by noon. Professional and clean work.
Our water bill doubled in one month. Phoenix On Call Plumbing tested the system and found a pinhole leak in a copper line running to the backyard hose bib. They repaired it in under two hours and showed us the moisture readings before and after. I appreciated that they explained everything without trying to upsell us.
Frequently Asked Questions About Leak Detection in Phoenix
Short answers for the first few minutes. The team can cover the rest.
Still have a question?
Describe what you are seeing and we will point you to the right next step.
(623) 260-3130Slab leaks and underground leaks take longer than a simple supply line leak. If you schedule the repair with us, we apply the detection fee toward the total repair cost. You get the exact price before we start.
Phoenix On Call Plumbing has been doing water leak detection in Phoenix since 2008. We cover Downtown Phoenix, Arcadia, Ahwatukee Foothills, Desert Ridge, and every neighborhood in between. Call (623) 260-3130 and we will schedule a same-day visit whenever possible. We handle both residential and commercial leaks.
The most common signs are a warm spot on the floor, the sound of running water when all fixtures are off, and a water bill that jumps without explanation. You might also see cracks in tile or moisture along the baseboard. If you notice any of these, call us for slab leak detection Phoenix AZ before the damage spreads.
Yes. We use acoustic listening equipment, thermal imaging, and pressure testing to find leaks behind walls, under slabs, and inside walls without tearing your home apart. For underground leaks, we use drain cameras and line tracing. Most hidden leaks are located within one to two hours on site.
Related Services
Other services from the same team.
Schedule Leak Detection Phoenix AZ Today
(623) 260-3130A hidden leak gets worse every day. Call Phoenix On Call Plumbing at (623) 260-3130 for same-day leak detection Phoenix AZ. We find the source, explain the repair, and fix it right.
Call Phoenix On Call Plumbing
We're on call 24 hours a day, seven days a week, including holidays. Call (623) 260-3130 and a real person will pick up, ask what's happening, and give you an arrival window. If it's an emergency, we move you to the front of the line.