Trusted San Francisco Water Leak Detection Pros — Find It, Fix It, Prevent It

In San Francisco, small leaks rarely stay small. A pinhole in a copper line can soak drywall, warp flooring,
and invite mold long before a puddle appears. Our licensed team uses non‑invasive diagnostics to find the
source quickly and repair it cleanly.

Hillside lots and longer plumbing runs can mask leaks until surfaces show damage.

Townhomes and condos with shared walls need clean, low‑impact detection techniques.

Watch for these warning signs:

- Efflorescence or damp lines on foundation walls.

- Water meter movement even when all fixtures are closed.

- Mildew odors or persistent humidity in specific rooms.

- Soft drywall, swollen baseboards, or warped flooring.

- Hissing sounds behind walls or near fixtures when water is off.

Why leaks happen:

- Worn angle stops, supply lines, and toilet fill valves.

- Improperly crimped PEX fittings or degraded rubber washers.

- Slab movement and soil conditions stressing buried pipes.

- Old galvanized piping rusting from the inside out.

How we find the exact source without guesswork:

- Thermal imaging to find temperature anomalies around hot‑water lines.

- Tracer gas for ultra‑small leaks where water noise is minimal.

- Borescope or camera inspection to distinguish supply leaks from drain issues.

- Acoustic listening to locate pressurized leaks behind walls and under slabs.

Prevention plan for peace of mind:

- Replace old angle stops and braided supplies proactively.

- Schedule an annual whole‑home plumbing check to catch small issues early.

- Keep water pressure in spec with a functional pressure‑reducing valve (PRV).

- Install leak alarms under sinks, behind washers, and near water heaters.

Case snapshot (San Francisco): A homeowner noticed a warm floor patch near the hallway. Thermal imaging
confirmed a hot‑side slab leak. We isolated the run, performed a clean access repair, and verified with a
pressure hold — all in one day.

Expect tidy work, labeled shut‑offs, and a walkthrough before we leave. If you’re seeing signs of a leak in
San Francisco, acting early prevents bigger repairs later.