Independent plumbing pros serving Nampa, Caldwell, Middleton, Greenleaf, Melba, Notus, Parma, Wilder

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Slab leak repair

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Amateur photo of a concrete slab edge with a small excavation beside a house footing

Slab leaks hide well: a supply or drain line under the concrete foundation lets go, and the water has nowhere obvious to go. In the county's slab-built subdivisions and post-war slab homes, the signs show up before the water does.

How a slab leak shows

A hot spot on a floor that should be cold. The water heater running at night with everything off. A crack in tile that grows. The meter spinning with every valve closed. Warm water in the slab is the signature; the job is finding it without tearing the floor apart.

Locate before breaking

Acoustic detection and thermal imaging locate the leak to a section, often to a square foot. A plumber who wants to open the slab on a hunch is guessing at your floor. The locate comes first, the scope of the repair second.

The fix paths

Once located, the options run three ways: a spot repair at the break, a reroute overhead through the attic or walls leaving the dead section under the slab, or a whole-line repipe when the slab has failed in multiple spots or the pipe is done generally. The honest choice depends on the pipe's age and how the first repair holds up in discussion, and the plumber should walk through all three.

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