Stop Hidden Water Damage in South San Francisco — Licensed Leak Detection & Repair

Hidden water leaks in South San Francisco are costly because they travel silently through walls and slabs. We
combine technology and craftsmanship to locate the problem precisely and stop the damage before it spreads.

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.

Five clues you may have a hidden leak:

1. Soft drywall, swollen baseboards, or warped flooring.

2. Stains on ceilings or bubbling paint along walls.

3. Water meter movement even when all fixtures are closed.

4. Warm spots on floors or damp carpet over slab areas.

5. Mildew odors or persistent humidity in specific rooms.

Why leaks happen:

- Aging copper with pinhole corrosion from water chemistry.

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

- Old galvanized piping rusting from the inside out.

- Improperly crimped PEX fittings or degraded rubber washers.

Our step‑by‑step approach:

Step 1: Restore finishes neatly and verify with a final pressure test.

Step 2: Open a small access point and make a clean, permanent repair.

Step 3: Acoustic listen and thermal scan to triangulate the leak position.

Step 4: Confirm with pressure testing or tracer gas for small, silent leaks.

Step 5: Isolate lines to narrow the suspect branch without opening walls.

Prevention plan for peace of mind:

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

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

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

- Know where your main shut‑off is and make sure it turns easily.

Case snapshot (South 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
South San Francisco, acting early prevents bigger repairs later.