Slab leak guides

Most slab leaks announce themselves quietly: a warm patch of tile, a meter that never rests, a bill that climbs. Here is how to read each sign and when several together mean it is time for a leak test.

Your water meter is the best free leak detector you have. This step-by-step test tells you whether water is escaping, and a second check at the water heater tells you which side of the plumbing it is on.

Slab leaks rarely have one cause. Age, heat, movement, contact with concrete or gravel and water chemistry all play a part, and the mix of those factors shapes which repair makes sense.

Knowing whether the leak is on the hot or cold side narrows the search, tells you what you can safely keep using and often shapes the repair plan.

Good slab leak detection narrows a leak to a small area before any concrete is cut. Here is what each method does, what it cannot do and what a careful visit usually looks like.

Once a slab leak is located, the real decision begins. Each repair option trades disruption now against the chance of another leak later, and the right balance depends on your home.

A reroute leaves the failed pipe under the concrete and runs a new line where it can be reached. It is one of the most common ways to fix a slab leak without breaking up the floor.

A spot repair goes straight to the leak: open the floor, fix the pipe, patch the concrete. It can be the most direct fix when the leak is pinpointed and the rest of the pipe is sound.

One slab leak can be bad luck. Repeated leaks usually say something about the pipe itself. This guide covers how to weigh a repipe, what it involves and how to plan for it.

There is no honest single price for a slab leak. This guide explains the factors that shape a quote so you can compare written estimates on scope rather than on the total alone.

Knowing which valve to close limits damage and lets you keep some water running. Here is where the valves usually are, which to close for each situation and how to protect the water heater.

Fixing the pipe stops new water, but whatever already soaked in still needs attention. This guide covers what gets wet, how drying usually works and when to raise foundation questions.

Whatever your policy says, good records make the conversation easier. Here is what to capture before, during and after the repair, and which questions to put to your insurer.

Permit rules are set locally, so this guide does not quote them. It explains the questions to ask, how scope affects the answer and how to confirm requirements with the city before work begins.

A slab leak repair can involve cutting concrete or opening walls, so it pays to ask good questions first. Use this list on the first call and again when you review the written quote.

Plenty of problems mimic a slab leak. Ruling out the common look-alikes first saves time, keeps the floor intact and points the plumber in the right direction.