Leak Detection in Fontana

Fontana’s position in the Inland Empire puts it squarely in one of Southern California’s most demanding environments for residential plumbing, intense summer heat, expansive clay soils that shift with seasonal moisture changes, and a housing stock that spans everything from mid-century tract homes to large master-planned communities built in the 2000s. When a water bill spikes without explanation, or a patch of lawn stays green long after you stopped watering it, the cause is often a hidden leak that standard visual inspection simply cannot find. RT Olson Plumbing, Heating and Air Conditioning uses electronic and acoustic leak detection equipment to locate the problem precisely, before any digging or demolition begins.

Why Fontana Properties See Hidden Leak Problems

The San Bernardino Valley’s clay-heavy soil expands when it absorbs water and contracts sharply during dry stretches. That constant movement puts stress on underground supply lines and slab penetrations year after year. Homes built in Fontana during the 1980s and early 1990s, a period of rapid tract development across the city, frequently used copper pipe that is now old enough to develop pinhole corrosion, especially where the soil chemistry is more alkaline. Polybutylene pipe, installed in some homes of that same era before it was phased out, is another common culprit. Slab foundations are the norm across much of Fontana, which means a leak under the concrete can run for weeks before it surfaces as a warm spot on the floor, a faint sulfur smell from damp concrete, or a water meter that never fully stops spinning.

High water bills are often the first signal. The Fontana Water Company meters residential accounts monthly, so a single billing cycle can represent weeks of undetected loss. If your bill has jumped without a change in usage habits, a pressure test and acoustic scan can confirm whether a leak is present before you pay for another cycle.

Our Leak Detection Process in Fontana

When we arrive at a Fontana property, the first step is isolating the system, shutting off fixtures and appliances to establish a baseline at the meter. A meter that continues to register flow with everything off is a reliable indicator of an active leak somewhere between the meter and the structure, or within the slab itself.

From there, we use electronic amplification equipment to listen along the pipe path. Pressurized water escaping through even a small crack generates a distinct frequency that travels through soil and concrete; our acoustic sensors can distinguish that signal from ambient noise and triangulate its location to within a few inches. For underground supply lines and irrigation systems, we may also use ground microphones or tracer gas, a safe, inert helium-hydrogen mixture, to confirm depth and position before any excavation is marked.

Thermal imaging is added when the suspected leak is inside a wall cavity or beneath flooring. Water cools the materials around it in a pattern that shows up clearly on an infrared camera, letting us identify the affected zone without opening the wall unnecessarily. The goal is always the smallest possible access point, a precise location means a targeted repair, not a trench across your yard or a wall torn open to find a pinhole.

Reaching Fontana from Corona

Our crews operate out of Corona and reach Fontana via the 91 to the 15 North, a route that keeps response times practical for most of the city. We’re available 24 hours a day, seven days a week, so a leak that announces itself at midnight with a running water meter or a soaked carpet doesn’t have to wait until morning. Whether the call comes from a newer development in the southern part of the city or an older neighborhood closer to Sierra Avenue, we dispatch with the detection equipment already loaded.

Local Note

Fontana’s master-planned communities, particularly those developed in the late 1990s and 2000s, often have HOA-governed common-area water lines and shared irrigation infrastructure. When a leak appears near a property boundary in these developments, it isn’t always clear whether the responsible line belongs to the homeowner or the association. We document the leak location precisely, including depth and distance from the meter, so you have the evidence you need to bring to your HOA board or management company before any repair cost is disputed. That documentation step costs nothing extra and has resolved more than a few disagreements before they became formal disputes.

If you’re seeing unexplained moisture, a climbing water bill, or a soft spot in your yard, call RT Olson Plumbing, Heating and Air Conditioning at (951) 344-5596. We’ll locate the source accurately, day or night, and give you a clear picture of what the repair involves before any ground is broken.