A hidden water leak can go undetected for weeks or months, quietly driving up your water bill, damaging your foundation, and creating conditions for mold growth. Chambliss Plumbing provides professional leak detection in San Antonio using advanced diagnostic equipment to pinpoint the exact location of the leak without unnecessary damage to your home. Once we find it, our licensed plumbers repair it on the same visit, so you are not left waiting on a second company to finish the job.
Whether you have an unexplained spike in your water bill, hear running water when nothing is turned on, or notice damp spots on your floors or walls, our team can track down the source. We handle everything from pinhole pipe leaks and hidden slab leaks to slow drips behind walls and under cabinets.
Signs You May Have a Hidden Water Leak
Not every leak announces itself with a puddle on the floor. Many of the leaks we diagnose in San Antonio homes are hidden behind walls, beneath slabs, or underground in the yard. Here are the most common warning signs:
- Unexplained increase in your water bill — If your usage has not changed but your bill keeps climbing, water is escaping somewhere in the system
- Sound of running water with fixtures off — A faint rushing or hissing sound when no faucets, toilets, or appliances are running
- Warm or damp spots on the floor — A hot water slab leak can create noticeably warm patches on tile or carpet, often in areas near the water heater
- Cracks in your foundation or walls — Water eroding soil beneath the slab can cause shifting and cracking that worsens over time
- Mold, mildew, or musty odors — Persistent moisture behind walls or under flooring creates ideal conditions for mold growth
- Low water pressure — A leak in the supply line reduces pressure at your fixtures, especially if the drop is sudden
- Water meter keeps running — Shut off all water in the house and check your meter. If it continues to move, you have an active leak
If you notice any of these signs, do not wait for the problem to get worse. The longer a leak goes undetected, the more damage it causes. Call Chambliss Plumbing at (210) 797-7471 to schedule an inspection before a small issue turns into a major repair.
How Our Plumbers Find Hidden Leaks
Chambliss Plumbing uses a systematic approach to isolate and locate leaks with minimal disruption to your home.
Pressure testing: We start by installing a pressure gauge on your system and shutting off the main valve. If the pressure drops, we know there is an active leak. A series of isolation tests helps us narrow down which line is affected — hot or cold supply, irrigation, or sewer.
Electronic leak detection: Using sensitive acoustic and electronic equipment, our plumbers listen for the sound of water escaping from pressurized pipes beneath the slab or behind walls. This allows us to pinpoint the leak location without cutting into your floors or drywall unnecessarily.
Camera inspection: For drain and sewer line issues, we run a plumbing camera inspection through the pipe to visually identify cracks, root intrusion, bellies, or breaks that may be causing the leak.
Once we have identified the source, we discuss your repair options on the spot. Depending on the situation, the fix may be a targeted repair, a line reroute, or in the case of widespread pipe failure, a whole-home repipe. If the leak is beneath your foundation, our slab leak repair team can handle the tunneling and repair work.Why Choose Chambliss for Leak Detection in San Antonio
Many leak detection companies in San Antonio specialize only in locating the leak. That means after paying for the detection, you still need to hire a separate plumber to do the actual repair. At Chambliss Plumbing, our licensed plumbers handle both the detection and the repair in a single visit, saving you time, money, and the hassle of coordinating between two companies.
San Antonio’s hard water accelerates pipe corrosion and scale buildup, which makes leaks more common here than in areas with softer water. Our plumbers understand the local conditions — from aging copper lines in Alamo Heights to PEX systems in newer Stone Oak construction — and know where to look first based on the age and construction of your home.
We also handle related issues that often surface during a leak investigation. If we discover that your drains are backing up due to a separate blockage, or that mineral buildup from hard water has compromised your pipes, we can address those problems during the same visit rather than scheduling additional appointments.
Learn more about our San Antonio plumbing services or call (210) 797-7471 to schedule your leak detection.
Leak Detection FAQs
How much does leak detection cost in San Antonio?
Leak detection costs depend on the complexity of the situation and the methods needed to locate the leak. Chambliss Plumbing provides transparent pricing and will explain the process and costs before any work begins.
How do I know if I have a slab leak?
Common signs of a slab leak include warm spots on the floor, the sound of running water when nothing is on, cracks in the foundation, and an unexplained increase in your water bill. If you suspect a slab leak, schedule an inspection as soon as possible to prevent foundation damage.
Can you detect a leak without tearing up my floor?
Yes. Our leak detection process uses pressure testing and electronic listening equipment to locate leaks through the slab without cutting into your floors. We only open up the area once we have confirmed the exact location, which minimizes damage and repair costs.
