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Leak Detection

Find the leak without tearing up your home.

Our electronic and acoustic detection equipment pinpoints hidden leaks behind walls, under slabs, and in ceilings — accurately and non-invasively.

(210) 555-0350
4.9 stars from 1,240+ reviews
Upfront quotes — no surprises
Licensed & insured TX plumbers
Same-day service available
Warning signs

Signs you need leak detection service

Not sure if you have a problem? Look for these common indicators.

Unexplained spike in water bill

A sudden, unexplained increase on your SAWS bill with no change in usage is the most common early sign of a hidden leak.

Sound of running water

If you hear water flowing when all fixtures and appliances are off, water is escaping somewhere in your system.

Wet spots or discoloration

Dark spots on ceilings, bubbling paint, warped flooring, or damp patches on walls usually indicate a leak behind the surface.

Mold or musty smell

Persistent moisture from a hidden leak creates ideal conditions for mold growth, often detected by smell before it becomes visible.

Low water pressure

A drop in pressure at one or more fixtures can mean water is leaving the system through a crack or loose joint before reaching the tap.

Water meter keeps spinning

Turn off every fixture and appliance in the house. If your meter dial is still moving, you have a leak between the meter and your home.

Recognize any of these signs?
Don't wait for it to get worse. Book a diagnostic and we'll tell you exactly what's going on.
What's included

What you get with every leak detection job

Pressure test

We isolate and pressurize your supply system to confirm whether a leak exists and measure its severity.

Electronic & acoustic locating

Specialized sensors detect the sound and vibration of escaping water through walls, slabs, and soil.

Thermal imaging

Infrared cameras detect temperature differences caused by water behind surfaces — no demolition needed.

Written report

You get a clear report with the leak location marked and repair options with pricing.

About this service

Leak Detection in San Antonio, TX

A hidden leak can waste 10,000+ gallons of water per year and cause tens of thousands of dollars in structural damage before you notice anything obvious. In San Antonio, where expansive clay soil shifts with every wet-dry cycle, pipe joints are under constant stress — making leaks more common than in most cities.

TruFlo uses commercial-grade electronic leak detection equipment, acoustic listening devices, thermal imaging, and pressure testing to find leaks without cutting into walls or floors. Once located, we mark the exact spot so repairs are targeted and minimally invasive.

We detect leaks in supply lines, drain lines, slab-embedded pipes, pool plumbing, irrigation systems, and radiant heating lines. If your water bill spiked or you hear water running when nothing is on, call us before the damage compounds.

Why San Antonio homeowners choose TruFlo

Licensed TX Master Plumbers (M-39284)
24/7 emergency dispatch — no overtime charges
2–5 year warranties on every job
4.9 stars from 1,240+ verified reviews
Family-owned since 2008 — 22 local technicians
Financing available through GreenSky
FAQ

Leak Detection questions answered

Common questions from San Antonio homeowners about leak detection service.

How do you find a leak without tearing up my house?

How much does leak detection cost in San Antonio?

Is a hidden leak covered by homeowners insurance?

How much water can a small leak waste?

What should I do if I suspect a leak?

Ready to schedule your leak detection?

Book online in under a minute, or call us for a free phone estimate. Same-day appointments available.

(210) 555-0350
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