Water Leak Detection in Dallas–Fort Worth

We find hidden leaks under slabs, inside walls, and underground without tearing your home apart. Professional detection using camera, thermal, and acoustic technology.
Nuflow DFW finds hidden water leaks under slabs, inside walls, and underground across the Dallas-Fort Worth Metroplex, using acoustic listening, thermal imaging, camera inspection, and pressure testing. Most leaks are pinpointed in one to three hours without breaking concrete or cutting drywall. Licensed Texas Master Plumber, RMP# 46694.
Water Leak Detection in Dallas–Fort Worth
Warning Signs

What are the signs of a water leak?

These are the most common signs DFW homeowners notice before discovering a hidden water leak. If you see two or more, call a licensed plumber.

Hydro jetting is a professional drain and sewer cleaning method that uses a high-pressure water stream (3,000–4,000 PSI for residential, up to 10,000 PSI for commercial) to scour the entire interior of a pipe. A specialized nozzle with forward and rear-facing jets is inserted into the pipe, blasting water in multiple directions to cut through grease, shred tree roots, dissolve mineral scale, and flush debris downstream.

Water Meter Running When Nothing Is On

Turn off all faucets and appliances, then check your water meter. If it's still moving, water is leaving your system somewhere you can't see.

Musty Smell or Visible Mold

Persistent musty odor near walls, floors, or ceilings signals trapped moisture. Mold can start growing within 24–48 hours of a leak beginning.

Discolored Walls, Ceilings, or Floors

Yellowish-brown stains on drywall or ceiling, or warping/buckling in flooring, indicate water damage from a leak above or below.

Wet Spots in Yard or Foundation Cracks

Unexplained soggy patches, unusually green grass in one area, or new foundation cracks may signal an underground or slab leak beneath your DFW home.

Sound of Running Water When Pipes Are Off

Hearing water flowing or dripping behind walls, under floors, or in the ceiling especially at night when the house is quiet points to an active leak.

See 2+ of These Signs?

Every day a leak goes undetected, the damage compounds. Water damage repair costs 5 to 10 times  more than the leak fix itself.

$150–$500

Detection Cost

$7,000+

Avg. Water Damage Repair

Detection Technology

How does leak detection work?

Four methods, used together, to pinpoint a leak without opening anything. Most leak locations are confirmed within one to three hours.

Acoustic Leak Detection

Slab & Underground

Ground microphones and correlators amplify the sound of pressurized water escaping from pipes. Different pipe materials (copper, PVC, cast iron) produce distinct sound signatures that trained technicians can interpret to locate the exact breach point.

Best for: Slab leaks, underground water line leaks, main line leaks

Thermal Imaging (Infrared)

Wall & Ceiling Leaks

Infrared cameras detect temperature differences on surfaces caused by hidden moisture. Leaking hot water creates warm spots; cold water supply leaks create cool spots invisible to the naked eye. Non-contact, completely non-invasive.

Best for: In-wall leaks, ceiling leaks, radiant floor issues, insulation failures

Video Camera Inspection

Inside Pipes

An HD camera on a flexible rod is inserted into pipes to visually inspect the interior. We see cracks, corrosion, root intrusion, joint separations, and bellied sections in real-time on a monitor. You see exactly what we see.

Best for: Drain/sewer leaks, pipe condition assessment, pre-purchase inspections

Pressure Testing

System-Wide

We isolate and pressurize individual plumbing lines to confirm whether a leak exists and identify exactly which line — hot, cold, or drain — is losing pressure. This narrows the search before deploying acoustic or thermal methods.

Best for: Confirming leak existence, isolating which line is affected, whole-house assessment

The Cost of Ignoring a Water Leak

A pinhole leak dripping at one drop per second wastes over 3,000 gallons per year. In DFW homes with slab foundations, undetected slab leaks can undermine your foundation within months — turning a $300 fix into a $15,000+ structural repair.

10,000 gal

Avg. annual household leak waste (EPA)

$7,000+

Avg. water damage insurance claim

24–48 hrs

Mold starts growing after leak begins

Our Services

Leak Detection Services We Provide

Five specialized detection services covering every type of water leak in residential and commercial properties.

Slab Leak Detection

Locate leaks beneath concrete slab foundations using acoustic listening and pressure testing, without breaking concrete until the exact point is confirmed. Most DFW homes sit on slab, and a slab leak is the most common under-foundation failure we are called to find.

Underground Leak Detection

Find buried pipe leaks in yards, driveways, and under structures using acoustic ground microphones. Wet patches, unusually green grass, or pressure drops indicate underground leaks that need professional pinpointing.

Video Camera Pipe Inspection

HD camera inspection inside sewer, drain, and supply lines. Visually identifies cracks, corrosion, root intrusion, and joint failures. Essential before buying an older DFW home or after recurring drain issues.

In-Wall Leak Detection

Thermal imaging and moisture meters locate hidden leaks behind drywall without cutting into walls. Signs include bubbling paint, soft drywall, or musty odors near bathroom or kitchen walls.

Leak Repair & Pipe Relining

After detecting the leak, we provide targeted repair or trenchless CIPP pipe relining restoring the pipe from inside without excavation. Saves homeowners $20,000–$27,000 vs. traditional replacement.

Preventive Leak Inspections

Annual plumbing inspections for DFW homeowners especially homes built before 1990 with galvanized or cast iron pipes. Camera inspection every 2–3 years catches deterioration before leaks start.

Our Process

The leak detection process, step by step

Clear communication, upfront pricing, no surprises.

Number 1 Icon

Report Symptoms

Call (469) 701-0597 and describe what you're seeing — high water bills, wet spots, sounds of running water, or visible damage. We schedule a same-day visit when available.

Number 2 Icon

Pressure Testing

We test your plumbing system's pressure to confirm a leak exists and isolate which line hot water, cold water, or drain is affected.

Number 3 Icon

Multi-Method Detection

Using acoustic listening, thermal imaging, and video camera inspection, we pinpoint the leak's exact location under the slab, inside a wall, or underground.

Number 4 Icon

Findings Report

We show you exactly where the leak is, explain the cause, and provide repair options with upfront pricing. No work starts without your approval.

Repair or Reline

Depending on the situation, we perform a targeted spot repair or use trenchless CIPP pipe relining to restore the pipe without excavation.

About Nuflow DFW

Why Nuflow DFW for leak detection?

Founded in 2021 by Ryan King, Nuflow DFW started as a small-diameter pipe relining company focused on rehabilitating broken, corroded, and aging sewer and drain systems for residential and commercial properties across Dallas–Fort Worth.

Our mission is preserving underground infrastructure from excessive destruction finding leaks precisely so repairs are minimal, and using trenchless technology to fix pipes without tearing up homes, yards, or driveways.

Owner Ryan King has more than 15 years in Dallas-Fort Worth plumbing and holds a Texas Responsible Master Plumber licence, RMP# 46694. That is the designation Texas requires before a person can take legal responsibility for a plumbing company’s work. The team handles leak detection, drain cleaning, hydro jetting, and full sewer line rehabilitation across the DFW metroplex.

RMP# 46694

Texas Licence

Responsible Master Plumber, insured and bonded
25+

Cities Served

Full DFW metroplex
15+

Years Experience

Ryan King, DFW plumbing

2021

Founded

Plano, TX based
Customer Reviews

What DFW Homeowners Say

EXCELLENT
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Based on 32 reviews
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Justin Isaac profile picture
Justin Isaac
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Rich and his team repiped our 80 foot cast iron sewer line with the NuFlow product and cured with UV light so we were out of sewer service for only several hours vs. multiple days with an ordinary repipe. Not only that but it saved us having to dig a trench through our yard, tear up our driveway, and most importantly, disrupting the roots of 100 year old oak trees in our backyard. Thanks to this great product we were able to avoid all of that and repipe an aging sewer line before it turned into a disaster! Thanks Rich and team!
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Robin Kuklenski Hindes profile picture
Robin Kuklenski Hindes
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As a seasoned real estate professional with more than 30 years of experience in the DFW area, I’m extremely selective about the companies I add to my preferred vendor list because my reputation and brand are attached to every referral I make to clients and colleagues. Based on my personal professional interactions, along with the positive feedback I’ve consistently heard from those I’ve referred, I can confidently say that Ryan King and the team at Nu Flo DFW are exactly the kind of professionals I look for. They operate with integrity, provide exceptional customer service, deliver quality work at competitive pricing, and offer niche expertise that brings real value. Their professionalism, responsiveness, and commitment to doing things the right way make them a company I confidently recommend.
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Ana Maria Braswell profile picture
Ana Maria Braswell
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Couldn’t be happier with the NuFLow team! Fairly priced, arrived on time and delivered exactly what they promised!
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Jessica Manuel profile picture
Jessica Manuel
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As a real estate agent, I value having reliable vendors I can confidently recommend to my clients—especially when unexpected plumbing issues pop up during negotiations. Nu Flow has consistently delivered. Their work is top-notch, communication is excellent, and they’re responsive and punctual every time.
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Jacqueline Snider profile picture
Jacqueline Snider
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Rich and his team with new flow literally saved our lives! They were professional and quickly fixed a sewer line problem that we were initially told would be a crazy expensive issue. They turned bad news into an easy and relatively affordable fix! Recommend trying them out!
Posted on Google Google
Joanie Stallo profile picture
Joanie Stallo
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Excellent customer service with competitive pricing. Highly recommend!
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Jimmy Ryan profile picture
Jimmy Ryan
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We had a pipe with roots growing into it brought up during the sell of our home. Initial plumber looked at the job and the sidewalks / retaining walls around it and said it could be 30k. Nu Flow offered their trencless process at just over 4, and when they saw that the pipe wasn't alighned well for that process, offered to do a standard repair at the same cost. The team came out and were able to spot exactly where it was, and dig out a minimal space needed. The whole team was truly great to work with through the process too. I can't recommend them enough!
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Minyan Li profile picture
Minyan Li
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Both Plumbers from Nu Flow DFW LLC, Xavier and Cody are very polite, nice and professional. They did great jobs! In addition, over all service such as answering questions, scheduling service are excellent to meet the customer’s needs, and pricing is reasonable and competitive as well. I’m highly recommend Nu Flow DFW LLC!
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David Tipotsch profile picture
David Tipotsch
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Great service. Johnathan was very persistent in finding and fixing my leak quickly. Very happy customer, would recommend Nu Flow to anyone.
Posted on Google Google
Rose Torres profile picture
Rose Torres
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Nu-Flow was such a excellent choice to do the work on our home. The owner and his employees are all conscientious ethical, smart, wonderful, hard-working, & patient men working for this company. So happy we chose them for the work especially because they finished the work in a timely manner. We were in such good hands-Thank you so so very much, you highly qualified individuals. Hire them! They are the best choiceand reasonably priced!
FAQ

Leak detection questions from DFW homeowners

Answers to the most common questions DFW homeowners ask about finding and fixing water leaks. Need more help? Call (469) 701-0597.

How does water leak detection work?
Professional water leak detection uses a combination of methods: acoustic listening devices amplify the sound of water escaping pressurized pipes, thermal imaging cameras detect temperature differences caused by moisture behind walls or under slabs, and video camera inspection sends an HD camera inside pipes to visually locate cracks, corrosion, and joint failures. Pressure testing can also isolate which section of plumbing has the leak. These non-invasive methods locate leaks precisely without cutting into walls or breaking concrete.
Slab leak detection uses acoustic listening equipment placed on the floor surface to amplify the sound of water escaping from pipes beneath the concrete. Pressure testing isolates the leaking line, and thermal imaging identifies warm or cool spots on the slab surface. In some cases, a video camera is inserted into the pipe to visually confirm the exact location. This process typically takes 1–3 hours and avoids breaking the slab until the exact leak point is confirmed.
Hidden wall leaks are detected using thermal imaging cameras (infrared), which show temperature differences caused by moisture inside the wall cavity. Moisture meters confirm the presence and extent of water. Signs that you may have a wall leak include bubbling or peeling paint, soft or discolored drywall, musty odor, and visible mold growth. Detection typically takes 30–60 minutes.

Yes. A licensed plumber with leak detection equipment can find leaks that are invisible to homeowners. Professional plumbers use acoustic listening devices, thermal cameras, video pipe inspection, and pressure testing. DIY methods like checking your water meter can indicate a leak exists, but professional equipment is needed to pinpoint the exact location. Nuflow DFW uses all four detection methods, under Texas Master Plumber licence RMP# 46694.

Yes. Thermal (infrared) cameras detect water leaks by showing temperature differences on surfaces. They don’t see through walls they detect the temperature change that moisture causes on the surface. They are most effective for in-wall leaks, ceiling leaks, and radiant floor heating leaks. Nuflow DFW uses professional-grade thermal imaging as part of our multi-method detection approach.

Water leak detection in DFW typically costs between $150 and $500, depending on the complexity. A simple pressure test or single-area camera inspection may run $150–$250. Full-house detection involving acoustic, thermal, and camera methods ranges from $300–$500. Nuflow DFW provides a clear quote before starting — detection fees are often credited toward the repair cost if you proceed with us.
Preventive leak detection involves annual plumbing inspections where a licensed plumber checks supply lines, drain connections, water heater, and visible pipes. Smart water leak detection sensors placed near water heaters, under sinks, and near washing machines can alert you to leaks early. DFW homes built before 1990 with galvanized or cast iron pipes should have a camera inspection every 2–3 years, as these materials corrode from the inside.
Underground leaks are found using acoustic ground microphones and correlators that listen for pressurized water escaping from buried pipes. Wet patches in your yard, a sudden pressure drop, or a spike in your water bill are common signs. Nuflow DFW locates the leak precisely before any digging — and in many cases, repairs the pipe using trenchless CIPP relining without excavation.

Nuflow DFW locates and confirms the leak before quoting any repair. Acoustic listening, thermal imaging, camera inspection, and pressure testing come first, and the camera footage decides whether the pipe can be lined or needs a targeted repair. You see the same footage we do.

Plumbing Services

Related plumbing services

Leak detection is often the first step. Here are the services that typically follow or prevent leaks in the first place.

Bathroom Plumbing

Toilet, drain & fixture repair

Drain Cleaning

Clog and blockage removal

Trenchless Pipe Repair

CIPP relining, no digging

Hydro Jetting

High-pressure pipe cleaning

Service Area

Serving Various Cities Across Dallas–Fort Worth

Nuflow DFW provides water Leak Detection service throughout the DFW metroplex from our base in Plano, TX.
Get Started

Schedule Your Water Leak Detection

Same-day appointments available Monday–Friday. Detection fees often credited toward repair costs.