Proudly serving Santa Clara and San Mateo Counties
Licensed & Insured • CSLB #1057926 • Warranty‑Backed Work for Millbrae Properties.

Hidden Leak Warning Signs & What to Do in Millbrae
Hidden water leaks in Millbrae 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.
Remodeled kitchens and baths deserve shut‑offs that actually shut off — we test every valve.
Watch for these warning signs:
- Warm spots on floors or damp carpet over slab areas.
- Hissing sounds behind walls or near fixtures when water is off.
- Unexplained spikes on your water bill despite normal use.
- Water meter movement even when all fixtures are closed.
- Mildew odors or persistent humidity in specific rooms.
Why leaks happen:
- Improperly crimped PEX fittings or degraded rubber washers.
- Aging copper with pinhole corrosion from water chemistry.
- Slab movement and soil conditions stressing buried pipes.
- Old galvanized piping rusting from the inside out.
Our step‑by‑step approach:
Step 1: Isolate lines to narrow the suspect branch without opening walls.
Step 2: Open a small access point and make a clean, permanent repair.
Step 3: Restore finishes neatly and verify with a final pressure test.
Step 4: Confirm with pressure testing or tracer gas for small, silent leaks.
Step 5: Acoustic listen and thermal scan to triangulate the leak position.
Prevention plan for peace of mind:
- Know where your main shut‑off is and make sure it turns easily.
- Replace old angle stops and braided supplies proactively.
- Schedule an annual whole‑home plumbing check to catch small issues early.
- Install leak alarms under sinks, behind washers, and near water heaters.
Recent job in Millbrae: Repeated meter movement with fixtures off pointed to a pinhole behind the laundry. A
small access panel let us repair the copper and install new shut‑offs, saving the client from tearing out a
full wall.
Expect tidy work, labeled shut‑offs, and a walkthrough before we leave. If you’re seeing signs of a leak in
Millbrae, acting early prevents bigger repairs later.

Cities We Serve for Expert Water Leak Detection
Bay Area
Belmont
Burlingame
Campbell
Cupertino
Daly City
Foster City
Fremont
Gilroy
Los Altos
Los Altos Hills
Los Gatos
Menlo Park
Millbrae
Milpitas
Monte Sereno
Morgan Hill
Mountain View
Pacifica
Palo Alto
Portola Valley
Redwood City
Richmond
San Bruno
San Carlos
San Francisco
San Jose
San Mateo
Santa Clara
Saratoga
South San Francisco
Sunnyvale
Woodside
If you are not listed above, please reach out and we'll do our best to assist you.
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