4.7from 108 Google reviews Slab leak repair in Houston

A warm spot on the floor is a leak under the slab.

Houston homes sit on concrete slabs with the water lines underneath, in clay soil that moves. When a line fails down there, you get a warm patch, a water bill that climbs, or the sound of running water with everything off. Royal Flush Affordable Plumbing locates the leak precisely and repairs it by tunnel or reroute, not by breaking up your floors on a guess.

Call 281-612-1015 Get a free quote

Located first, no exploratory breaking
Tunnel or reroute, floors stay intact
Free estimates, upfront pricing

Get the slab leak located

Tell us the symptom. A plumber calls back with a price range, not a call center.

We only use your number to call you back about this job. No spam, ever.

Prefer to talk? 281-612-1015

Signs you need this

Six signs of a slab leak in a Houston home.

Any two of these together and it is time to test.

A warm spot on the floor

A hot water line leaking under the slab warms the concrete above it. The most reliable sign.

A water bill that climbed

A slab leak runs 24 hours a day and never shows on the surface.

Running water with everything off

A hiss or rush you can hear at the wall or floor, usually near a bathroom or the heater.

Low pressure, no visible leak

Water leaving under the slab starves the fixtures.

Cracks in floors or walls, doors that stick

Water saturates the clay, which swells and lifts the slab unevenly.

Damp carpet or flooring

In a bad case, water finds a crack and surfaces inside.

Royal Flush Affordable Plumbing plumbers working beneath a brick foundation in Houston — **2007**Serving Houston since

What we actually do

Located to the foot, then tunnel or reroute.

We confirm the leak with a pressure test, isolate hot or cold, and locate it with listening equipment and line tracing. Then there are two honest ways to fix it. Tunneling from outside the foundation to the leak, repairing the line in place, and backfilling the tunnel. Or rerouting that line overhead through the attic in PEX and abandoning the failed run under the slab.

Which is right depends on where the leak is, how old the rest of the under-slab lines are, and what is on the floor above. We lay out both with prices and let you choose.

Pressure test and locateHot or cold, and where, before anything is opened.
Tunnel from outsideFloors and finishes stay intact. The tunnel is backfilled when the line passes.
Reroute when the slab lines are oldIf one line has failed, the others are the same age. Rerouting ends the problem.

281-612-1015 Get a free quote

How we fix it

A slab leak, start to finish.

Here is how a slab leak call goes.

Water coming through the floor?

Shut off the water at the house valve or the meter and call. We dispatch 24 hours a day Sunday to Friday.

Call 281-612-1015

1
First
Test and locate

Pressure test confirms the leak and whether it is hot or cold. Listening gear pins it down.
2
Before any work
Two options, two prices

Tunnel repair or overhead reroute, with the floor and wall impact of each spelled out.
3
Work
Tunnel or reroute

A tunnel is dug from outside and the line repaired in place, or new PEX is run overhead and the old line abandoned.
4
Before we leave
Test, backfill, restore

Pressure tested, tunnel compacted, any openings patched.

What affects the price

What moves the price on a slab leak.

Quoted after the leak is located. The variables:

Where the leak is

Near an outside wall is a short tunnel. The middle of the house is a long one, and often a reroute wins.

Tunnel or reroute

A tunnel fixes one leak. A reroute replaces the line and can be the better value when the slab lines are old.

Hot or cold

Hot lines fail first and usually run from the heater to the bathrooms; the route shapes the job.

Detection is priced, the estimate is free

Locating takes equipment and time. The repair quote that follows costs nothing.

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Slab Leak Repair FAQs

Slab leak questions we hear every week.

Still not sure? Call and describe the problem. We’ll tell you honestly whether it’s a 20-minute fix or a job worth quoting.

Ask a plumber: 281-612-1015

01Why are slab leaks so common in Houston?

Clay soil that swells and shrinks with moisture moves the slab, and the copper lines under it flex and rub against the concrete until they wear through. Older homes with under-slab copper are the usual case.

02Will you have to break my floor?

Almost never. Tunneling from outside the foundation reaches the leak without touching the floor. Rerouting overhead avoids the slab entirely. Breaking the slab from inside is a last resort.

03Tunnel or reroute: which is better?

A tunnel fixes the leak you have. A reroute replaces that line and removes it from under the slab for good. If the other under-slab lines are the same age, a reroute is usually the better long-term value. We quote both.

04Does insurance cover a slab leak?

Policies vary. Many cover the damage a leak causes and the access to reach it, but not the plumbing repair itself. We provide the documentation your insurer asks for.

05How do I turn the water off?

At the main shutoff valve where the line enters the house, usually near the front hose bib or in the garage, or at the meter box by the street with a meter key. If you cannot find either, call and we will talk you through it.

Related services

Also in repipe & pipe repair.

All repipe & pipe repair services

PEX RepipingFewer joints, faster install, no corrosion. Water Line RepairThe main line from the meter to the house. Water Pipe RepairLeaks, pinholes and burst sections fixed fast. Whole-House RepipeWhen patching stops making sense.

Google reviews

What Houston says after the job is done.

Pulled straight from our Google Business Profile.

Read all reviews on Google Write a review

4.7 108 Google reviews Google Business Profile

5102

44

32

20

10

Latest review

Larry Duong Google review · 2 months ago

Thank you for a fantastic and quick service! Manny is a life saver. Our water main line burst was fixed quickly and without any hassle!
See this review on Google

Larry Duong2 months ago

Thank you for a fantastic and quick service! Manny is a life saver. Our water main line burst was fixed quickly and without any hassle!

See this review on Google

LeeAnn Ewah8 months ago

Manny is excellent. He’s been our plumber of choice for my business for 5 years. Always fair. Always punctual. Very honest. Highly recommended!

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Alyssa Navarre1 year ago

Very professional, completed the job true to time and price expectations. Would definitely hire again in the future!

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Ready when you are

Warm floor, rising bill? Call now.

A plumber answers 24 hours a day Sunday to Friday. Describe the signs and we will tell you whether to test.

Call 281-612-1015

Email[email protected]
Main location1 Mockingbird Circle, Houston, TX 77074
HoursSunday–Friday: open 24 hours · Saturday: closed

Request a callback

Name and number is enough. A plumber calls you back.

A warm spot on the floor is a leak under the slab.

Get the slab leak located

Six signs of a slab leak in a Houston home.

A warm spot on the floor

A water bill that climbed

Running water with everything off

Low pressure, no visible leak

Cracks in floors or walls, doors that stick

Damp carpet or flooring

Located to the foot, then tunnel or reroute.

A slab leak, start to finish.

Test and locate

Two options, two prices

Tunnel or reroute

Test, backfill, restore

What moves the price on a slab leak.

Where the leak is

Tunnel or reroute

Hot or cold

Detection is priced, the estimate is free

Slab leak questions we hear every week.

Also in repipe & pipe repair.

What Houston says after the job is done.

Warm floor, rising bill? Call now.

Request a callback