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How does water leak detection work in a home?

Home water leak detection uses a targeted inspection and specialized tools to find hidden plumbing leaks without unnecessary demolition. The most common trigger is unexplained water use or pressure loss, so a technician verifies the source before opening walls or floors.

In practice, a licensed plumber follows a clear process: an initial inspection, accurate diagnosis with leak‑detection tools, and noninvasive locating in lines and fixtures; drains and sewer laterals are checked with a sewer camera when needed, followed by an upfront estimate, the repair, and a final test. Many homeowners also add a flow‑monitoring sensor, such as a Moen system, to alert on abnormal usage and meet some insurance requirements. We apply this same step‑by‑step approach for homeowners near Kentfield with an emphasis on clear communication and straightforward pricing. If water is actively running, close the main shutoff valve and call a licensed plumber.

Updated: 2026-08-14

Need help in Kentfield, CA? Call (415) 209-8142 or book online.

"Highly recommend Big Island Plumbing for all plumbing needs large and small... leak detection... and much more." — Scott H.

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