Got A Hidden Leak? Give us a Call!
Leak Detection in Dallas-Fort Worth, TX
Water leaks are serious problems that waste water, damage your home, and increase utility costs. Many leaks are hidden behind walls, under slabs, or underground, where they go unnoticed until significant damage occurs. Our advanced leak detection services quickly and accurately locate leaks, protecting your Dallas-Fort Worth home from costly water damage. At Pact Plumbing, we are your trusted local Dallas plumbers, dedicated to providing top-tier water quality solutions.
Why Professional Leak Detection Matters
Even small leaks can cause major problems over time. Hidden water damage weakens structural elements, promotes mold growth, and creates conditions for pest infestations. A single pinhole leak can waste thousands of gallons monthly, dramatically increasing your water bill. Early detection prevents expensive repairs and protects your home’s integrity. If a hidden leak has caused a massive spike in your monthly water bill, you may qualify for the City of Dallas Leak Adjustment Program after Pact Plumbing has completed the professional repairs.
Our Service Guarantee

1-Year Parts and Labor Warranty on all plumbing work.

5-Year Parts and Labor Warranty on slab leak detection and tunnel repairs.

Licensed and Insured Plumbers.

Upfront pricing with no hidden fees.

Same-day service available.

Signs of a Hidden Leak
Contact us for professional leak detection if you notice:
- Your water meter runs when no water is being used
- Unexplained increases in water bills
- Sound of running water when fixtures are off
- Wet spots on walls, ceilings, or floors
- Musty odors or visible mold growth
- Warm spots on floors (indicating hot water slab leaks)
- Cracks in the walls or foundation
- Low water pressure throughout the home
Our Advanced Leak Detection Technology
We use state-of-the-art equipment to pinpoint leaks without unnecessary demolition:
Electronic Leak Detection Specialized listening devices detect the sound of water escaping from pipes, even through concrete and soil.
Thermal Imaging Infrared cameras identify temperature differences caused by water leaks behind walls and under floors.
Pressure Testing: We isolate sections of your plumbing system and test pressure to identify leak locations.
Video Camera Inspection For drain and sewer leaks, we use waterproof cameras to visually inspect pipe interiors and identify damage.
Moisture Meters: These tools measure moisture levels in building materials to track hidden water sources.
Our Slab Leak Warranty
We stand behind our slab leak detection and repair work with an industry-leading 5-year parts and labor warranty—significantly longer than typical industry standards. This comprehensive warranty demonstrates our confidence in our work and protects your investment.
Specialized Slab Leak Detection
Slab leaks—leaks in pipes running beneath your concrete foundation—require specialized detection and repair. Dallas-Fort Worth’s clay soil expands and contracts with changes in moisture, putting pressure on foundation pipes and making slab leaks common in our area.
Contact us for professional leak detection if you notice:
- Your water meter runs when no water is being used
- Unexplained increases in water bills
- Sound of running water when fixtures are off
- Wet spots on walls, ceilings, or floors
- Musty odors or visible mold growth
- Warm spots on floors (indicating hot water slab leaks)
- Cracks in the walls or foundation
- Low water pressure throughout the home
Slab Leak Repair Options
Once we’ve located the leak, we provide several repair approaches:
Spot Repair For isolated leaks, we access the damaged pipe section through the slab and repair or replace it.
Pipe Rerouting For leaks in difficult locations, we route new pipes through walls or the attic to bypass the damaged section.
Repiping For homes with multiple slab leaks or aging pipes, complete repiping may be the most cost-effective long-term solution.
Underground Water Line Leak Detection
Leaks in the main water line connecting your home to the municipal supply can waste enormous amounts of water. We detect and repair underground leaks using specialized equipment and techniques that minimize yard disturbance.

Why Pact Plumbing Proudly Partners with United Water USA
When you choose Pact Plumbing, you are choosing a company that values integrity, localized expertise, and superior craftsmanship. That is exactly why we have teamed up with United Water USA.
Based just up the road in Carrollton, Texas, United Water USA understands the unique chemistry of Dallas Metroplex water better than large, out-of-state corporate brands. They custom-engineer their products to address the specific hard water and chloramine issues prevalent in our region.
Even better, United Water USA products are 100% Made in the USA. By choosing Pact Plumbing to install a United Water USA system, you are supporting local Texas businesses, ensuring your hard-earned money stays within the DFW community. Their products feature heavy-duty, commercial-grade components designed to outlast and outperform the cheap plastic systems often found in big-box home improvement stores. You get unparalleled local support, superior warranties, and the expert installation of a trusted Dallas plumber.
According to the EPA WaterSense program, the average household’s leaks can account for more than 10,000 gallons of wasted water every year.
Preventing Leak Damage
After detecting and repairing leaks, we provide guidance to protect against future problems:
• Schedule regular plumbing inspections
• Monitor your water bill for unusual increases
• Know your water meter location and check it periodically
• Install a whole-home leak detection system
• Address plumbing problems promptly before they worsen
Serving The Dallas-Fort Worth Metroplex
We serve residential and commercial customers throughout the DFW area, including Keller, Southlake, Grapevine, Fort Worth, Roanoke, Frisco, McKinney, Plano, and all other suburbs. Our plumbers know the unique plumbing challenges facing homes in North Texas and arrive prepared to solve them efficiently.
Whether you need emergency plumbing repair or are planning a bathroom upgrade, we deliver professional service that protects your home and your budget. Contact us today!
Areas We Serve
Frequently Asked Questions We Receive About Leak Detection
How do I know if I have a hidden plumbing leak in my Dallas-Fort Worth home?
The most common signs of a hidden water leak include an unexplained spike in your monthly water bill, a sudden drop in water pressure, or the sound of running water when all fixtures are turned off. In DFW homes, you might also notice damp spots on your drywall, bubbling paint, or warm spots on your flooring. If you notice any of these warning signs, it’s critical to have a professional investigate before minor issues become major water damage.
What is a slab leak, and why are they so common in North Texas?
A slab leak is a water pipe leak that occurs underneath your home’s concrete foundation. They are incredibly common in the Dallas-Fort Worth metroplex because of our region’s expansive clay soil. As the weather fluctuates between extreme Texas heat and heavy rains, the soil expands and contracts, putting immense pressure on your underground plumbing. Symptoms include foundation cracks, unexplained pooling water in your yard, or unusually warm spots on your floor.
How does Pact Plumbing locate leaks without tearing up my walls or floors?
We utilize state-of-the-art, non-invasive electronic leak detection technology. Instead of destructive digging or tearing through drywall to find the source of the water, our plumbers use acoustic listening devices, moisture meters, and infrared thermal imaging. This allows us to pinpoint the exact location of the leak behind walls, under floors, or beneath your slab with pinpoint accuracy and zero unnecessary damage to your property.
What should I do if I suspect a water leak but can’t find it?
If you suspect a leak, the first thing you should do is perform a water meter test. Turn off all the water inside and outside your home, then locate your water meter. If the leak indicator dial is still moving, you have an active leak. To prevent further property damage, shut off your home’s main water valve immediately and call Pact Plumbing for emergency leak detection services.
How much does professional leak detection cost in DFW?
The cost of water leak detection in Dallas and Fort Worth varies depending on the leak’s complexity and location. For example, finding a standard pipe leak behind a bathroom wall is generally less intensive than locating a deep underground slab leak. At Pact Plumbing, we provide transparent, upfront pricing before we begin any diagnostic work, so you are never hit with hidden fees.
How quickly can an undetected water leak cause damage?
Water damage escalates incredibly fast. Within just 24 hours of a leak starting, drywall can begin to swell and break down. Within 48 hours, mold and mildew can begin to grow—a major concern in our humid Texas climate. Ignoring a plumbing leak, even a small one, compromises your home’s structural integrity and leads to vastly more expensive repairs down the line.
Does Pact Plumbing repair the leak after finding it?
Absolutely. We don’t just find the problem; we fix it permanently. Once our expert plumbers have pinpointed the exact source of your leak, we will walk you through a comprehensive repair plan. Whether it requires a simple pipe patch, rerouting a water line, or a complete slab leak repair, Pact Plumbing has the expertise to restore your home’s plumbing system safely and efficiently.



