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:
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.



