Slab Leak Repair

Slab leaks happen when water pipes running through or under your home's concrete foundation crack, corrode, or shift. Because the leak is hidden under concrete, it often goes undetected until water bills spike, flooring warps, or warm spots show up underfoot. By then, structural damage is usually already underway.

All Phase Plumbing uses non-invasive slab leak detection to pinpoint the exact location of the leak, then offers the right repair approach for your home, from spot repair to full rerouting that avoids the slab entirely.

Call (206) 772-6077 to schedule slab leak detection.

Signs of a Slab Leak

• Warm or hot spots on the floor (hot water line leak)
• Unexplained spike in your water bill
• Sound of running water when nothing is on
• Cracks appearing in walls or floor tile
• Damp carpet or warped flooring with no visible source
• Low water pressure throughout the home
• Mold or mildew smell at floor level

Non-Invasive Slab Leak Detection

Before opening any concrete, we use electronic listening equipment, thermal imaging, and pressure isolation to pinpoint exactly where the leak is. This means surgical access instead of guesswork demolition, a smaller hole, a faster fix, and a cleaner patch.

Slab Leak Repair Options

We walk you through the tradeoffs honestly. Spot repair is cheapest if the rest of the line is in good shape; rerouting often makes more sense for older homes where another slab leak is likely.

• Spot repair, cut concrete, repair the specific pipe section, patch
• Re-routing, abandon the under-slab section and run new pipe through walls or ceiling
• Whole-home repipe, when multiple slab failures suggest end-of-life pipes

Why Slab Leaks Get Worse Fast

Water under the slab erodes the soil supporting your foundation, can rot subflooring above, and creates conditions for mold. What costs $1,500 to repair this week can become $15,000 in remediation in six months. If you suspect a slab leak, don't wait.

Schedule Slab Leak Service

Suspect a slab leak? Call (206) 772-6077, we'll detect, locate, and repair with the least disruption possible to your floors and foundation.