Polly Plumbing | 1762 Keller Pkwy, Keller, TX | (817) 286-3446. Written by Haven Brady, Co-Founder. Locally owned, not a franchise. Every slab leak diagnosis on our trucks gets reviewed by a licensed master plumber. Texas License RMP-42199. Serving Keller, Southlake, North Richland Hills, Grapevine, Flower Mound, Fort Worth, Arlington, Trophy Club, Roanoke, and all of Tarrant County.
Finding out you have a slab leak is a rough afternoon. There is water somewhere under your foundation, and a bill you did not plan for. And a stack of options with names like reroute and tunnel that mean nothing to most people until the day they suddenly matter.
This guide is here to make that afternoon less overwhelming. A slab leak has a small number of real repair paths, each one right in certain situations and wrong in others. Once you understand what separates them, the decision gets a lot less frightening. The good news worth saying up front: most Keller slab leaks get fixed without turning your living room into a construction site. The most common solution is often one of the less destructive ones.
We will walk through what a slab leak actually is and the one step that has to come before any repair. Then each repair option and when it fits, the question that decides whether you fix one spot or replace the line, and what shapes the cost. By the end you will be able to read your own quote and understand the choice in front of you.
What a Slab Leak Actually Is
Your home sits on a concrete foundation, a slab, and some of your water pipes run underneath or within it. A slab leak is simply a leak in one of those pipes, hidden below the concrete.
Most often it is a pressurized water line, the pipe carrying clean water into your house under constant pressure. That is why a slab leak can waste water and drive up a bill around the clock. Less commonly it is a drain line under the slab, which behaves differently because it only carries water when something is draining. The distinction matters for the repair, and it is one of the first things we confirm.
Two things make slab leaks a fact of life around here. The first is our soil. Keller sits on Blackland Prairie clay, which the USGS has documented for its dramatic swelling and shrinking through wet and dry seasons. That constant movement works on the pipes locked in the slab above it. The second is pipe age: older copper lines corrode from the inside in our water, and decades of that thinning eventually meets decades of soil movement. If you are still confirming whether you even have a slab leak, our slab leak detection guide for Keller TX covers the warning signs and how detection works.
First, Always: Find It Before You Fix It
Here is the single most important thing on this page. No slab leak should be repaired until it has been located precisely, and no honest repair quote exists without that step.
Modern detection pinpoints a leak to within inches using acoustic listening equipment and thermal imaging, plus pressure testing to confirm which line is failing. That precision is what protects you. It turns a repair into a targeted operation instead of a guess. The old approach of opening a large area of floor hoping to find the leak somewhere in that zone is exactly what precise detection makes unnecessary.
This matters for your wallet as much as your floor. Detection determines the exact location, which line is leaking, and often the condition of the surrounding pipe. All three feed directly into which repair method is right. Anyone proposing to break concrete before locating the leak has skipped the step that keeps the job small. Our leak detection guide for Keller TX covers how that process works and why it is the foundation of every good outcome.
The Repair Options, and When Each One Fits
Once the leak is located, a handful of real paths exist. The right one depends on where the leak sits, what the pipe is made of, and what is above the slab. It also depends on whether one spot is failing or the whole line is tired.
Rerouting the line. Often the best-value option for Keller homes, and the one people are relieved to hear about. Instead of touching the leak under the slab, we abandon that failed section and run a brand new line along an accessible path. That path runs through the attic, walls, or interior spaces, from one connection point to another. The floor is never opened. The old pipe stays buried and retired. The tradeoff is that a reroute usually means opening some sheetrock to reach the connection points and run the new line. But drywall is quick and inexpensive to access and repair compared to concrete. This is the exact approach we took on a June job, rerouting a water line around a Keller foundation and ending that leak for good without a jackhammer in the house.
Tunneling under the slab. The North Texas specialty, and the right call in specific situations. A crew hand-digs a tunnel from outside the foundation, under the slab, to reach the failed pipe. They repair it, then backfill. Your floors are never touched. That makes tunneling the answer when you have finished or expensive flooring you cannot disturb, or a post-tension foundation where cutting the slab is genuinely risky, common in Southlake’s Timarron and Carillon era homes. It is careful, labor-intensive work, so it is rarely the cheapest path, but for the right home it protects far more than it costs. We cover tunneling in depth in our sewer repair method guide, and the same principles apply on the water side.
Accessing through the floor. Sometimes reaching the pipe directly through the slab is genuinely the right answer, particularly for a single, well-located leak. The key word is precise. Because detection pinpoints the leak to within inches, the floor opening is a small, targeted one directly over the spot. It is not the large exploratory demolition of years past. The pipe gets repaired, the opening gets patched, and the disruption stays contained. This path can be the fastest and most direct when the leak is accessible and the flooring above is not precious.
Repiping the whole home. When the pipe itself is failing rather than leaking in one spot, replacing the entire line, or the whole home’s supply plumbing, becomes the option that actually solves the problem. More on that decision next, because it is the one that saves people the most money over time. Our whole-home repipe context lives in the water line repair guide.
One Leak, or a Failing Line? The Question That Saves Money
This is the decision that matters most, and the one a good plumber will actually talk through with you instead of around.
A single leak in an otherwise healthy pipe is a spot problem, and a spot solution, a targeted repair or a short reroute, is the sensible, economical fix. But if the pipe itself is deteriorating along its length, fixing one spot just patches a system that will fail again somewhere else. Often within a year or two. Then you are paying twice, or three times, for what one larger repair would have solved once.
A few signals point toward a failing line rather than a one-time leak. Multiple leaks in the same line, even months apart, mean the pipe is telling you something. Old copper, several decades in, corroding in our hard water, is a system nearing the end of its service life. And a history of slab problems in the same home suggests the conditions that caused one leak are still at work. When those signs are present, rerouting or repiping the whole line usually beats chasing individual leaks under the slab. It is both the cheaper path over time and the end of the disruption. The camera, the detection findings, and the pipe’s age and material tell us which conversation you are actually in, and we will tell you plainly which one it is.
Polly Plumbing is a locally owned shop on Keller Parkway. We detect, reroute, tunnel, and repair slab leaks across Keller and Tarrant County, and every finding and option goes to you in writing.
What Shapes the Cost
We keep pricing in broad strokes on purpose, because two slab leaks are almost never the same job, and a real number only exists after the leak is located. What we can do is show you what moves it.
The method is the biggest lever. A short reroute or a precise floor access sits at the lower end. Tunneling and whole-home repiping climb from there. And what sits above the slab, plain flooring versus marble, a slab versus a pool deck, can swing a job by thousands. The layout matters too. Two-story homes are more work than single-story, because both the diagnosis and the new pipe routing get more complex. Pipe material and the length of the run factor in. And the honest comparison is always spot repair against the lasting fix, because the cheapest number today is not always the cheapest number over three years, as the failing-line question above makes clear.
Whatever the method, our rules hold: the written quote is the invoice, the $89 dispatch fee is waived for PollyCare members, and there is no emergency surcharge. For how we think about pricing generally, our plumber cost guide for Keller TX lays it out, and for the broader water-line picture our water line repair guide covers the pipe from the meter in.
A Word on Insurance
Worth knowing before you file. Homeowners policies handle slab leaks unevenly, and the details matter. Many policies exclude the gradual corrosion that causes the leak itself, while still covering the resulting water damage to floors and walls. So the pipe repair and the damage repair can land in different columns. Some policies also require the least-intrusive repair method. That is worth confirming before anyone authorizes breaking concrete. Document everything, photograph the damage, keep the written findings from detection, and call your agent early. When coverage applies, our written detection reports and itemized findings give the adjuster exactly what a claim needs. What your specific policy covers is a question only your agent can answer, and asking it early is free.
Why Keller Homes Get Slab Leaks
The clay and the pipe age combine differently across the area, which shapes both the risk and the repair.
North Richland Hills carries the oldest housing stock we serve. It has the highest concentration of aging copper and the highest slab leak rate to match. Southlake’s Timarron, Carillon, and similar 1990s and 2000s neighborhoods sit on post-tension slabs. That pushes a repair toward tunneling or reroute rather than cutting, because those foundations hold tensioned steel cable that makes slab cutting a specialist’s job. Keller’s own older sections and Grapevine’s established neighborhoods carry decades-old supply lines working against decades of soil movement. Newer construction across Flower Mound and north Keller has younger pipe, though our clay does not spare anyone forever. The pattern is consistent: older pipe plus moving clay is what makes slab leaks a Tarrant County constant, and the age and layout of your specific home shapes which repair fits.
We Are Close By
Polly Plumbing detects and repairs slab leaks from our shop on Keller Parkway, serving Keller, Southlake, North Richland Hills, Flower Mound, Fort Worth, Arlington, Trophy Club, Roanoke, and all of Tarrant County.
Told you have a slab leak? Start with precise detection, then the right repair for your home. Call (817) 286-3446. Live agents answer 24/7, every option comes in writing, and the written quote is the invoice.
Frequently Asked Questions About Slab Leak Repair Options
What are the options for repairing a slab leak?
There are four main paths, chosen by where the leak sits and the pipe’s condition. Rerouting abandons the failed line under the slab and runs a new one through the attic or walls, often the best value and no floor cutting. Tunneling reaches the pipe from an outside pit under the foundation, preserving floors, ideal for finished or post-tension slab homes. Direct floor access cuts a small, precise opening over a pinpointed leak and patches it. And whole-line or whole-home repiping replaces failing pipe rather than patching it. Detection determines which fits. Call Polly Plumbing at (817) 286-3446.
Can a slab leak be fixed without breaking the floor?
Very often, yes. Rerouting runs a completely new line through the attic and walls, bypassing the slab entirely with no floor cutting, and it is the most common solution for many Keller homes. Tunneling reaches the pipe from outside and under the foundation, also leaving floors untouched. When the floor does need opening, precise detection keeps it to a small, targeted patch rather than the large demolition of the past. Most slab leaks around here get solved with minimal or no disruption to your floors. Call Polly Plumbing at (817) 286-3446 to find out which fits your home.
Is rerouting or tunneling better for a slab leak?
Neither is universally better; they fit different situations. Rerouting is often the best value and a strong long-term fix, especially when the existing pipe is aging, because it replaces the line rather than patching one spot, though it means opening some sheetrock. Tunneling shines when you cannot disturb the floor, expensive or finished flooring, or a post-tension foundation where cutting the slab is risky, since it reaches the pipe from outside and below. The leak location, pipe condition, and what sits above the slab decide it. Polly Plumbing walks you through both. Call (817) 286-3446.
Should I fix one slab leak or repipe the whole line?
It depends on whether one spot is leaking or the whole pipe is failing. A single leak in otherwise healthy pipe deserves a targeted, economical repair. But multiple leaks in the same line, decades-old corroding copper, or a history of slab problems all signal a failing system, and patching one spot then usually means paying again when the next spot goes, often within a year or two. In those cases rerouting or repiping the line is typically cheaper over time and ends the disruption. Detection and the pipe’s age and material tell us which you are facing. Call Polly Plumbing at (817) 286-3446.
How much does slab leak repair cost in Keller?
It depends heavily on the method and the home, and a real number only exists after the leak is located. A short reroute or a precise floor access sits at the lower end, while tunneling and whole-home repiping climb from there, and what sits above the slab plus a two-story layout can swing the total significantly. Because every slab leak differs, Polly Plumbing prices in writing after detection, and the written quote is the invoice with no emergency surcharge and the 89 dollar dispatch fee waived for members. Call (817) 286-3446 for detection and an honest written quote.
Does homeowners insurance cover slab leak repair?
Coverage is uneven and the details matter. Many policies exclude the gradual pipe corrosion that causes the leak while still covering the resulting water damage to floors and walls, so the pipe repair and the damage repair may fall differently. Some policies also require the least-intrusive repair method, worth confirming before authorizing any slab cutting. Document the damage with photos, keep the written detection findings, and call your agent early. When coverage applies, Polly Plumbing’s written reports give the adjuster what the claim needs. Ask your agent about your specific policy. Call (817) 286-3446.
Why do slab leaks happen so often in Keller?
Two local factors combine. Keller sits on Blackland Prairie clay that swells and shrinks dramatically between wet and dry seasons, and that constant soil movement works on the water pipes locked in the slab above. At the same time, older copper supply lines corrode from the inside in our hard water, thinning over decades until the movement and the corrosion meet. Older homes in North Richland Hills and Keller’s established neighborhoods see the most, though the clay eventually challenges every foundation. It is a Tarrant County constant, not bad luck. Call Polly Plumbing at (817) 286-3446.