San Francisco County
San Francisco's Victorian and Edwardian housing stock often hides original plumbing runs behind plaster walls, and the city's bay mud and fill soil in low-lying districts can shift enough to stress buried lines and slab foundations alike.
Doug M. in Pacific Heights, San Francisco noticed a warm spot on the floor that didn't make sense for the season and wasn't sure how serious it was. Homes built on bay fill in districts like SoMa and the Marina see more ground settling, which is a common contributor to underground line stress. The leak was marked in that same visit, and the repair crew only had to open a small section instead of the whole area.
— Doug M., Pacific Heights, San Francisco
A closer look at the areas across San Francisco where we handle the most leak detection and repair calls:
A foggy, flat western neighborhood built mostly in the 1930s-40s, known for rows of nearly identical stucco homes.
A similarly foggy western neighborhood with a housing stock comparable in age to the nearby Sunset.
A sunnier, hillside neighborhood known for Victorian and Edwardian homes and a walkable commercial strip.
One of the city's oldest and most architecturally varied neighborhoods, with homes dating from the 1800s onward.
An affluent hillside neighborhood known for large Victorian and Edwardian mansions with bay views.
A hilltop neighborhood with a mix of Victorian cottages and later 20th-century infill construction.
A former industrial district south of Market Street now dense with newer high-rise residential and mixed-use buildings.
A southeastern neighborhood built partly on reclaimed bay land, with housing dating from the early-to-mid 20th century.
Every service we offer statewide is available in San Francisco and the surrounding San Francisco County area:
Detection
Pinpoint hidden leaks under concrete foundations without breaking up the whole slab.
Learn more about Slab Leak Detection →
Detection
Non-invasive detection for hidden leaks inside walls, ceilings, and under floors.
Learn more about Water Leak Detection →
Detection
Find pool shell, plumbing, and equipment leaks before water loss becomes structural damage.
Learn more about Pool & Spa Leak Detection →
Detection
Locate natural gas and propane leaks quickly for safety and code compliance.
Learn more about Gas Leak Detection →
Detection
Camera-based inspection finds sewer line breaks, root intrusion, and drain leaks.
Learn more about Sewer & Drain Leak Detection →
Detection
Locate leaks in buried main water lines and irrigation systems before they surface.
Learn more about Underground & Main Line Leak Detection →
Repair
Spot repair, reroute, or slab access — matched to your home once the leak is pinpointed.
Learn more about Slab Leak Repair →
Repair
Fixture, fitting, and in-wall pipe repairs once the leak's exact location is confirmed.
Learn more about Water Leak Repair →
Repair
Shell, plumbing line, and equipment pad repairs once the leak point is confirmed.
Learn more about Pool & Spa Leak Repair →
Repair
Coordinated repair or replacement of confirmed gas line and fitting leaks.
Learn more about Gas Leak Repair & Line Replacement →
Repair
Trenchless lining, pipe bursting, or targeted excavation once the defect is confirmed on camera.
Learn more about Sewer Line Repair (Trenchless & Traditional) →
Repair
Targeted excavation, trenchless pipe pulling, or full replacement of a confirmed main line leak.
Learn more about Main Water Line Repair & Replacement →“Old Victorian with plaster walls everywhere, so I was dreading this. They used thermal imaging and found the leak behind one wall panel instead of opening up the whole room. Saved us a big repair bill.”
“Ground near our garage had been soft for a while. Turned out to be the main line. They marked the exact dig spot and our plumber only had to open a two-foot section instead of the whole path.”
“The floor in our hallway had a warm spot for weeks. They found the slab leak in under an hour with the listening equipment and marked a tiny area instead of tearing up the whole hallway. Huge relief.”
“Our water bill jumped for two months straight and we couldn't find why. Turned out it was a slow leak behind the water heater. Professional, on time, and explained everything on the spot.”
“Salt air had corroded a fitting outside near the meter box. They traced it with the acoustic equipment without digging up my whole side yard first. Appreciated the straightforward report.”
“Good experience overall, technician was knowledgeable and thorough. Took a little longer than expected but they were clearly being careful about pinpointing the exact spot before marking it.”
