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Slab leaks can cause water damage, mold growth, foundation cracks, and skyrocketing water bills if left untreated. Early detection and expert repair protect your home and your budget.
Slab leaks occur in pipes running beneath your home's concrete foundation. Recognizing the signs early can prevent catastrophic—and expensive—structural damage.
Hot water line leaks beneath a slab create warm spots on your floor—often the first noticeable sign of a slab leak.
A sudden spike in your water bill with no change in usage is a strong indicator of a leak somewhere in your system—possibly under the slab.
A significant loss of water pressure throughout the home can signal a major leak in the main supply line beneath your foundation.
Persistent moisture under your slab creates ideal conditions for mold growth, which can spread through walls and flooring if the leak isn't addressed.
Water erodes the soil under your foundation, causing settling that cracks floors, walls, and even the foundation itself over time.
Hearing water running when no fixtures are in use—especially near the floor—is a telltale sign of a slab leak requiring immediate attention.
After locating your slab leak using acoustic and thermal detection equipment, we recommend the most appropriate repair strategy for your specific situation.
Heise's Plumbing serves homes and businesses throughout San Francisco and the Peninsula.
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