Leak Detection Service in San Antonio, TX

Jon Wayne has over 20 years of experience helping San Antonio homeowners find and address hidden plumbing leaks before they turn into expensive disasters. Our licensed plumbers use advanced, non-invasive detection technology to locate leaks behind walls, under floors, and beneath concrete slabs with precision, so you get answers quickly and repairs can begin without unnecessary damage to your home.

Thanks to our convenient scheduling, fast response times, and reliable service, we have thousands of 5-star reviews. Contact us today to discover the Jon Wayne difference.

  • 99% of jobs completed on the same day
  • Detection for all leak types across all pipe materials
  • Peace of Mind Guarantee

High-Quality Leak Detection Services in San Antonio

Water leaks are not always easy to find. While a dripping faucet or a wet spot under a sink is obvious, many of the most damaging leaks in a home are completely hidden. They can develop inside walls, beneath flooring, or deep under a concrete slab foundation, where they go unnoticed for months or even years while causing structural damage, mold growth, and wasted water.

San Antonio homeowners face a particular risk from slab leaks. The city’s expansive clay soils shift and swell significantly with changes in moisture, putting continuous stress on the pipes that run beneath home foundations. Over time, this ground movement can crack pipes and create leaks that are impossible to detect without the right equipment.

Our technicians use a combination of acoustic listening devices, infrared thermal imaging, and pressure testing to locate leaks without tearing into walls or excavating your yard. Once the source is pinpointed, we walk you through the findings and your repair options before any work begins.

Watch for these signs that your home may have a hidden leak:

  • A sudden or unexplained increase in your monthly water bill
  • The sound of running water when no fixtures are in use
  • Warm or damp spots on floors, particularly on slab foundations
  • Mold, mildew, or musty odors in areas not exposed to regular moisture
  • Cracks appearing in your walls, flooring, or foundation
  • Low water pressure throughout the home with no obvious cause

How Much Does Leak Detection Cost in San Antonio?

The exact cost of leak detection depends on the type of leak and the method required to locate it, but you can expect it to fall into this range:

Low

$125

Average

$275

High

$600

All prices shown are estimates and can vary depending on a variety of factors.

What Affects the Cost?

Several factors affect the cost of leak detection in San Antonio:

  • Location of the leak. Leaks that are visible or easily accessible cost less to locate than those hidden behind walls, beneath flooring, or under a concrete slab. Slab leak detection requires specialized acoustic or thermal imaging equipment and generally falls toward the higher end of the cost range.
  • Detection method required. Different leak types call for different tools. Basic moisture meters and visual inspections are the least expensive approach. Acoustic listening devices, infrared cameras, and hydrostatic pressure testing involve more advanced equipment and trained expertise, which affects the overall cost.
  • Complexity of the plumbing system. Homes with older pipe materials such as cast iron, galvanized steel, or Orangeburg, or those with extensive or unconventional layouts, may require more time and effort to inspect thoroughly.
  • Emergency or after-hours service. Leak detection performed on nights, weekends, or holidays typically carries a higher service fee than scheduled appointments during regular business hours.

Specials

Take Advantage of Our Specials Today!

If you’re looking for the best value on HVAC services in San Antonio, be sure to check out the latest specials from Jon Wayne Service Company. From seasonal discounts on new system installations to limited-time offers on repairs, maintenance, and indoor air quality solutions, their specials are designed to help homeowners save without sacrificing comfort or quality. Whether you need a quick fix or a full system upgrade, exploring current promotions is a smart way to get trusted service at a competitive price—so don’t miss the opportunity to take advantage of these money-saving offers.

The Benefits of Professional Leak Detection

  • Stops water damage before it spreads. A hidden leak that goes unaddressed can saturate drywall, warp flooring, and compromise the structural integrity of a home over time. Locating and repairing a leak early limits the damage to the immediate area rather than allowing it to spread through walls, ceilings, or a foundation.
  • Lowers your water bills. Even a slow, steady leak that produces no visible signs can waste thousands of gallons of water per year. Identifying and fixing the source stops that waste and brings your monthly water bills back down to normal.
  • Prevents mold and mildew growth. Persistent moisture from a hidden leak creates ideal conditions for mold and mildew, which can be costly to remediate and harmful to indoor air quality. Professional detection finds the source of that moisture before mold has a chance to establish itself.
  • Protects your foundation. San Antonio’s shifting clay soils make foundations especially vulnerable to water-related damage. A slab leak left undetected can erode the soil supporting a home’s foundation, leading to settling, cracking, and repairs that cost far more than the leak detection and pipe repair combined.
  • Avoids unnecessary excavation. Without modern detection technology, finding a hidden leak often meant digging up a yard or breaking through walls based on guesswork. Non-invasive detection tools allow our technicians to pinpoint the exact location of a leak before any repair work begins, protecting your landscaping, flooring, and finishes from unnecessary damage.

Why San Antonio Chooses Jon Wayne

When your comfort is on the line, you need a team that shows up fast, gets it right, and stands behind every job. For over two decades, Jon Wayne has been the service company San Antonio families call first and the one they recommend to their neighbors.

What Customers Say About Jon Wayne

Leak Detection With Jon Wayne in Four Easy Steps

Jon Wayne Home Services

1. Request a Service Visit From Jon Wayne​

Jon Wayne offers fast response times and reliable scheduling. Simply call us or use our online scheduling tool.

Technician

2. Get Upfront Pricing Options​

One of our NATE-certified technicians will diagnose the issue and give you a custom estimate before performing any work. Our upfront pricing ensures you're not surprised by hidden fees later.

Service Technician

3. Relax While We Repair Your Problem

We handle every repair efficiently and effectively, ensuring the job is done right the first time. All you have to do is relax.

Service Technician

4. Let Us Know How We Did

Jon Wayne is committed to excellent service, so we offer a 100% guarantee. Once your repair is complete, we'd appreciate it if you could leave a review or contact us with your feedback. We use your input to make our business even better.

Common Leak Detection Questions

Common signs of a hidden water leak include an unexplained increase in your water bill, the sound of running water when no fixtures are in use, damp or warm spots on floors or walls, mold or mildew growth, and low water pressure. If you notice any of these signs in your San Antonio home, it is a good idea to have a professional inspection as soon as possible.
Our technicians use specialized tools such as acoustic listening devices, thermal imaging cameras, and pressure testing to locate leaks accurately. These methods allow us to pinpoint the source behind walls, under slabs, or beneath your yard before any repair work begins, minimizing unnecessary damage to your property.
A slab leak occurs when a water line beneath your home’s concrete foundation develops a crack or break. Signs of a slab leak include warm spots on your floor, the sound of running water under the slab, and a sudden spike in your water bill. Slab leaks can cause serious foundation damage if not addressed promptly.
Yes. Small leaks in walls, under slabs, or underground can go unnoticed for months or even years. During that time, they can cause significant water damage, mold growth, and structural issues. Having your plumbing inspected at the first sign of a problem is the best way to catch a leak before it becomes a costly repair.
If you suspect a leak, check your water meter before and after a two-hour period when no water is in use. If the reading changes, you likely have a leak. Avoid attempting to locate or repair a hidden leak on your own. Call Jon Wayne Service Company and our licensed plumbers will diagnose the problem quickly and walk you through your repair options.

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