Water Leak Detection in Sacramento, CA

What are the signs of a hidden water leak?

Hidden leaks usually announce themselves slowly. Common signs include a water bill that rises with no change in use, the sound of running water when every fixture is off, a musty smell, stains or bubbling paint on walls and ceilings, warped or lifting flooring, warm or damp spots on a floor, and carpet that feels wet with no spill nearby. Mold on baseboards or behind furniture can also point to moisture that is coming from somewhere you cannot see.

One simple check you can do yourself is to turn off every faucet, toilet and appliance, then watch the water meter for several minutes. If the dial or leak indicator keeps moving, water is going somewhere, and leak detection can find out where.

How do you find a leak without tearing out walls?

Leak detection uses tools that read through or around building materials, so walls and floors are opened only where the evidence points. No single tool does everything, so readings are checked against each other before anyone cuts into a wall.

• Moisture meters. Pinless meters scan drywall, wood and flooring for elevated moisture without making holes. Pin meters confirm the reading at a specific spot. Mapping readings across a room shows where the water is spreading from.
• Thermal imaging. An infrared camera shows temperature differences on a surface. Wet materials often read cooler, and a hot water leak can show as a warm patch. A thermal image is a clue, not proof, so it is confirmed with a moisture meter.
• Acoustic tools. Water escaping a pressurized pipe makes sound. Acoustic listening equipment picks up that sound through walls, floors and concrete, which helps narrow down leaks in supply lines.

The result is a marked location and a moisture map. That keeps the plumber’s repair, and any drywall or flooring that has to come out, as small as possible.

Can you find a slab leak?

Yes, slab leak detection is one of the most common reasons people call. When a supply line under a concrete floor starts leaking, the water spreads under flooring and wicks into the bottom of walls before anyone sees it. Acoustic tools help locate the sound of the leak through the concrete, while thermal imaging and moisture mapping show how far the water has traveled. Our guide to slab leak water damage in Sacramento explains the warning signs and repair options a plumber may suggest.

Where do hidden leaks usually start?

Most hidden leaks start at a connection or a line that runs out of sight. Common sources include supply lines and shutoff valves under sinks, toilet supply lines, water heater fittings, refrigerator ice maker lines, dishwasher and washing machine hoses, shower pans and tub drains, and supply pipes inside walls or under the slab. Roof and window leaks can also look like plumbing leaks when water runs down inside a wall, so part of leak detection is ruling sources in or out. For leaks from appliances, see appliance and water heater leaks.

We provide leak detection services across the Sacramento region, including Roseville, CA, Rocklin, CA, Granite Bay, CA, Citrus Heights, CA, Fair Oaks, CA, Davis, CA and Auburn, CA. The process is the same in every city, and the service areas list below links to each local page.

Who repairs the leak once it is found?

A licensed plumber repairs the pipe. We do not do plumbing repair. Our job is to locate the leak, document it, and handle the water damage it caused. If you searched for water leak repair in Roseville, CA, Rocklin, CA or Granite Bay, CA, this is how the work splits: the plumber fixes the pipe, and we find the leak and repair the water damage around it. You can check a plumber’s license with the Contractors State License Board before hiring. When the plumber and the drying crew work from the same moisture map, walls opened for the repair are checked and dried before they are closed.

What happens after the leak is located?

Once the plumber has stopped the leak, the wet areas are dried. Standing water is removed with water extraction, then air movers and dehumidifiers are set up for structural drying and checked with moisture readings until the materials are dry. The EPA advises drying water-damaged areas and items within 24 to 48 hours to prevent mold growth, which is why a slow hidden leak that has been running for weeks may also need mold remediation. If a pipe has burst rather than seeped, see burst pipe repair and cleanup.

Is leak detection worth it for a small stain?

A small stain can be the only visible part of a larger wet area. Water follows framing, pipes and gravity, so the stain is often not where the leak is. Leak detection services tell you whether the moisture is limited to one spot or has spread into insulation, subfloor or the next room, which helps you decide what repair is needed. It also gives you dated readings and photos if you file an insurance claim.

Does insurance cover leak detection?

It depends on your policy and the cause of the leak, and only your insurer can decide. Many policies treat sudden plumbing failures differently from long-term seepage. We provide photos, moisture maps and a written scope your adjuster can use, and our insurance claims help page explains the documentation. The California Department of Insurance residential property claims guide is a good place to start.

Our water leak detection process

1. Call and shut off. If water is actively spreading, close the main valve if you can do it safely, then call.
2. Interview and visual check. We ask what you have noticed and inspect fixtures, appliances, ceilings and floors.
3. Moisture mapping. Moisture meters and thermal imaging show where materials are wet and how far it reaches.
4. Locate the source. Acoustic tools and readings narrow down the leak, and the location is marked and photographed.
5. Plumber repair. A licensed plumber repairs the pipe at the marked spot.
6. Dry and restore. Wet areas are extracted, dried and monitored until readings confirm the structure is dry.

Related reading: a musty smell after a leak, ceiling leak water damage and what to do in the first 24 hours after water damage.

Water leak detection: common questions