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Maui

Slab Leak Repair in Maui, HI

Licensed Hawaii plumbers. We locate leaks before opening anything. Serving Maui since 2019.

At All Aloha Plumbing, we locate and repair slab leaks across Maui, and we confirm the foundation type before we start. Not every Maui home sits on a slab, and that changes the whole job.

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A slab leak reveals itself slowly: a warm patch on the floor, a meter that never stops, a rising bill, or the sound of water with nothing running. Since Maui homes have no basement to catch it, the water goes straight into the ground beneath the slab. We locate the break first, then offer real repair options instead of a single price for breaking concrete.

Our Slab Leak Services on Maui

We handle the whole job, from locating the break to closing the floor back up. Every repair starts with a clear diagnosis.

Slab Leak Detection and Locating

We isolate the hot and cold sides, pressure-test each, and listen through the slab with ground microphones. Thermal imaging confirms hot-line leaks, the most common type. You see the marked spot and the evidence before we quote the repair.

Foundation Type Confirmation

Many Maui homes are post-and-pier, not slab-on-grade, and some are a mix after an addition. We check underneath before assuming. A leak under a post-and-pier floor is usually simpler and cheaper to repair, and we will tell you.

Spot Repair Through the Slab

Where the break is isolated, and the rest of the run is sound, we open a small section of concrete over it. Then we repair the pipe. We contain dust, protect the surrounding floor, and keep the opening as small as the work allows. This is the least invasive option when the pipe is otherwise in good shape.

Pipe Rerouting Above the Slab

When the line under the slab fails in more than one place, rerouting is usually better. We abandon the old run and route a new line through walls and ceiling space. This avoids repeat concrete work and places the pipe somewhere reachable in the future.

Repiping After Repeat Slab Leaks

Two or three slab leaks in the same home indicate a pattern, not bad luck. At that point, a whole home repipe usually costs less than the next three repairs and the damage between them. We show you the failure pattern and let you decide with real numbers.

Concrete Closing and Restoration

We patch and finish the concrete we open and leave the site clean. When flooring must come up, we sequence the work so the repair is inspected before closing. Larger restoration is quoted separately.

Need Urgent Help for Slab Leaks?

All Aloha Plumbing is available 24/7 for emergency leak situations.

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A Slab Leak on Maui Wastes Water You Cannot See

A slab leak on Maui is not just a repair bill; it is pumped island groundwater running into the ground. The County of Maui’s 2025 report puts the split plainly. 92% of the water served came from groundwater and 8% from surface water. That groundwater is drawn from wells in the Iao, Waihee, and Kahului aquifers.

That water is lifted from the island and delivered under pressure. A pinhole under a slab discharges it continuously, day and night, with no surface signs. A leak obvious in a basement is hidden here because Maui homes have none.

The damage underneath compounds while it runs. Water erodes the fill under the slab and saturates the surrounding ground. On a hot water line, the leak also bleeds heat, which is why a warm floor is often the first thing a homeowner notices.

We treat suspected slab leaks as time-sensitive, not something to watch for a month. We locate it, stop the loss, then discuss whether a spot repair or reroute is best. Every day it runs adds to the water bill and water leak repair cost.

Our Slab Leak Repair Process

We diagnose before quoting and quote before opening anything. The order matters because opening concrete twice is expensive.

  1. Meter and pressure check. We confirm an active leak at the meter and gauge the system’s static pressure.
  2. Foundation check. We confirm whether the home is slab-on-grade, post-and-pier, or a mix after an addition.
  3. Hot and cold isolation. We isolate each side and pressure test separately to identify which line is losing.
  4. Acoustic and thermal locating. Ground microphones and thermal imaging narrow the break to within inches.
  5. Mark and document. We mark the spot, photograph the findings, and explain what we found.
  6. Repair options in writing. You get spot repair and reroute priced side by side, with the reasoning for each.
  7. Permit where required. Rerouting and repiping are permitted work under the Maui County plumbing code, and we handle it.
  8. Repair, test, and close. We complete the repair, pressure test the line, then patch the concrete and clean up.

If the line is sound and the leak is elsewhere, we say so and price that instead. We don’t sell slab repairs to homes that don’t need them.

Why Maui Homeowners Choose All Aloha Plumbing for Slab Leaks

We locate before cutting and price options rather than one path. Our plumbers carry acoustic and thermal equipment on the truck, so diagnosis and repair usually happen in the same visit.

  • Licensed Hawaii plumbing contractor, license CT-36812, and insured.
  • We confirm the foundation type before quoting any slab work.
  • Non-invasive locating, with concrete opened only over the marked break.
  • Spot repair and reroute priced side by side, in writing.
  • Permits pulled for rerouting and repiping work.
  • Dust containment and floor protection as standard.
  • 24/7 help when a slab leak is actively running.
  • Flexible financing so a reroute does not have to wait for a good month to afford.

We live and work on Maui, and we are one family across three islands. The plumber who locates your leak is the one who explains the repair choices.

Suspect a Slab Leak Under Your Maui Home?

Tell us what you are noticing. We will locate the break, show you the evidence, and provide written pricing for your options.

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Suspect a Slab Leak on Maui?

We locate the break before opening anything, then price spot repair and reroute in writing. Available 24/7.

Call (808) 871-7586

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Plumbers on call 24/7 across Oahu, Maui,
and the Big Island.

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Quick Answers

Slab Leak Repair FAQs

What are the signs of a slab leak in a Maui home?

The most common signs are a warm spot on the floor and a meter that keeps moving even when every tap is closed. Another is a bill that climbs with no change in use. You may also hear running water with nothing on or notice damp or lifting flooring. Because Maui homes have no basement, the water goes into the ground rather than somewhere visible. That is why the meter test is the fastest way to confirm it.

Do all Maui homes have concrete slabs?

No, this is the first thing worth checking. Many Maui homes are built on posts and piers, with a raised floor and crawl space rather than slab on grade. Some properties are a mix, where an addition sits on a slab next to an original raised section. If the leaking line runs under a raised floor rather than concrete, the repair is usually simpler and cheaper. We confirm the construction before quoting.

Should I repair the slab leak or reroute the pipe?

A spot repair makes sense when the break is isolated, and the rest of the run is in good condition. A reroute makes more sense when the line has failed more than once. It also wins when the pipe is old enough that another break is likely. Rerouting abandons the buried run and puts new pipe where you can reach it later. We price both options side by side and explain which the evidence supports.

How long does slab leak repair take on Maui?

Locating usually takes one to three hours. A spot repair through the slab often finishes the same day once the break is marked. A reroute takes longer, commonly one to two days, because it involves opening walls, running new pipe, and closing back up. Permit and inspection timing are separate, and we include the expected schedule in our quote.

Does slab leak repair need a permit on Maui?

Repiping and rerouting are permitted plumbing work under the Maui County plumbing code, and we pull the permit and meet the inspector. A small spot repair on an existing line may be handled differently, and we confirm the requirement for your specific job before starting. Doing this work unpermitted can cause problems at resale and with insurance. The permit cost, where one applies, appears in your written quote.

Will my insurance cover a slab leak?

Policies commonly cover the cost of accessing and repairing damage from a sudden leak but exclude the failed pipe itself. Long-running, slow leaks are often excluded, which is another reason not to wait once the meter confirms one. Coverage varies by carrier and policy, so your insurer determines the answer. We provide written findings and photos from the locating visit that you can submit with a claim.

Real Customers • Real Stories

What Our Ohana Says

5 star rating quote

“All Aloha came out super fast and fixed our leak the same day. Excellent service! These guys are real pros and treated my home with respect.”

HBM

Hawaii Bottle Man

Kahului, Maui

5 star rating quote

“They replaced our water heater quickly and left everything spotless. The crew showed up exactly when they said they would. Couldn’t ask for better.”

RC

Ray Cabanting

Kihei, Maui

5 star rating quote

“Called at midnight with a burst pipe. They were here in 25 minutes and had it contained before the ceiling came down.”

TT

Thai Tran

Lahaina, Maui

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From the North Shore to Hilo, we’re proud to bring honest plumbing with aloha to homes across Hawaii.

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