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A slab leak is one of the most damaging plumbing problems a San Francisco homeowner can face. Water silently escaping beneath your concrete foundation can erode soil, crack your slab, and cause thousands in structural damage — often before you notice anything is wrong. Magic Plumbing’s service experts have been detecting and repairing slab leaks across San Francisco and the Bay Area since 1980. We find the leak fast and fix it right.
Suspect a slab leak? Call now: 415-441-2255
Slab leaks are often invisible until the damage is already significant. Watch for these warning signs:
San Francisco’s older housing stock — much of it built in the mid-20th century — uses copper or galvanized steel pipes that have been under the slab for 50–80 years. Soil movement (common in the Bay Area due to seismic activity), mineral-heavy water supply, and age-related corrosion all accelerate pipe deterioration underground. If your home was built before 1980 and you’ve never had a plumbing inspection, a slab leak is a real risk worth assessing.
We perform slab leak detection and repair throughout San Francisco and the Bay Area, including Oakland, Berkeley, San Mateo, Daly City, Alameda, and surrounding cities. Slab leaks don’t wait — neither do we.
The most common signs are an unexplained rise in your water bill, the sound of running water when nothing is on, warm spots on your floor, and damp or cracked flooring. If you notice any of these, call Magic Plumbing for a same-day assessment.
Cost varies based on the leak location, access difficulty, and repair method. Minor spot repairs are significantly less expensive than full rerouting. Magic provides an upfront price after detection — no work begins until you’ve approved it.
Not always. Many slab leaks can be repaired by rerouting the pipe through the walls or attic, completely avoiding the concrete. When concrete access is required, we cut only what’s necessary and restore the area after the repair.
Sometimes. Most policies cover the resulting water damage but not the pipe repair itself. Coverage depends on your specific policy and the cause of the leak. We can provide documentation to support your insurance claim.
Detection typically takes 1–2 hours. Repair time ranges from a few hours for simple rerouting to a full day or more for complex jobs. We’ll give you a realistic timeline before we start.
Think you have a slab leak in San Francisco? Call Magic Plumbing now: 415-441-2255 — same-day assessment, upfront pricing, open every day.
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