How Much Does It Cost to Fix a Water Leak? (McAllen, TX — Updated September 2026)
Prices last updated: September 16, 2026
Quick answer
How much does it cost to fix a water leak in McAllen, TX?
At All Valley Plumbing & A/C Co., water leak repair in McAllen, TX costs $275–$425 for a typical accessible leak, and non-invasive leak detection to find a hidden leak is $400–$800 (prices updated September 16, 2026). Bigger jobs such as a slab leak re-route are $1,875–$2,463. You see the price and approve it before any work begins — call 956-686-6656 or book online.
| Service | Price |
|---|---|
| Water leak repair | $275–$425 |
| Pipe repair (small section) | $275–$425 |
| Leak detection (non-invasive) | $400–$800 |
| Slab Leak Re-Route | $1,875–$2,463 |
| Wall/ceiling repair & patching | $300–$625 |
| Shut-off valve replacement | $175–$375 |
| Leaky faucet repair | $175–$375 |
| Toilet repair | $175–$425 |
| Full repipe (if needed) | $7,663.50–$15,764.50 |
Prices last updated: September 16, 2026
How much does it cost to fix a water leak?
A standard water leak repair is $275–$425 once the leak is reachable. If we still have to find it, non-invasive leak detection is $400–$800.
The price depends mostly on where the leak is, not on how long the repair takes. A leak under a sink is simple; a leak inside a wall or under the slab takes more work to reach, and that price is shown to you before we open anything.
How much does a plumber charge to fix a leak?
We charge a flat posted price per job instead of by the hour: $275–$425 for a standard leak repair.
How much does it cost to fix a leaking pipe?
Repairing a small section of pipe is $275–$425.
How much to repair a pipe in the wall?
The pipe repair itself is $275–$425, and closing the wall back up is $300–$625 if you want us to patch it.
How much does leak detection cost?
Non-invasive leak detection is $400–$800, depending on how much of the house we have to test.
How much does slab leak detection cost?
Slab leak detection is the same $400–$800 — we listen and test to pinpoint the leak before anything is opened.
How much does it cost to fix a slab leak?
Most slab leaks are fixed with a re-route, which is $1,875–$2,463, plus detection at $400–$800 to find it first.
How much does a slab leak reroute cost?
A slab leak re-route is $1,875–$2,463. We run a new line around the bad section instead of chasing the pipe under the concrete.
Reroute or jackhammer: which costs less?
A re-route is usually the less expensive path once you count the concrete work, because breaking the slab means opening the floor, repairing the pipe, refilling and then repairing the floor covering.
There are homes where opening the slab is the right call. We tell you which one your home needs and show you the price before you decide.
How much does it cost to repipe a house?
A full repipe, if your home needs one, is $7,663.50–$15,764.50 depending on the size of the house and the number of fixtures.
How much to patch drywall or a ceiling after a leak?
Wall and ceiling repair and patching is $300–$625.
How do I know if I have a hidden leak?
Turn off every faucet and appliance and look at the water meter. If the dial keeps moving, water is going somewhere it should not.
Other signs are a warm spot on the floor, the sound of running water with nothing on, a musty smell, or paint and baseboards that stay damp.
Why is my water bill suddenly so high?
A sudden jump almost always means a running toilet or a hidden leak, since normal household use does not change that fast.
How do I know if I have a slab leak?
The usual signs are a warm or damp spot on the floor, the sound of water running under the house, a high water bill and a water heater that runs more than it used to.
What should I do if I see water damage on my ceiling or wall?
Shut the water off to the house, put a bucket under the drip, keep people away from a sagging ceiling, and call 956-686-6656. Phones are answered 24/7.
How do I shut off the water to my house?
Find the main shut-off valve — usually outside near the meter or where the water line enters the house — and turn it clockwise until it stops.
It is worth finding that valve today, before you need it. If yours is stuck or leaking, replacing a shut-off valve is on our price list.
Can you find a leak without tearing up walls or floors?
Yes. Our leak detection is non-invasive at $400–$800 — we locate the leak first, then open only the spot we need.
Do you offer same-day leak repair?
Same-day service is available. Book online or call and we will tell you the soonest window we have.
What does leak detection include?
Testing the system, listening and pinpointing where the leak is, and telling you the repair price for that specific leak before we start.
Is leak detection included in the repair price?
No. Leak detection is its own price at $400–$800, and the repair is priced separately, so you only pay for detection when the leak actually has to be found.
How much does it cost to replace a shut-off valve?
Shut-off valve replacement is $175–$375.
How much to fix a leaking faucet or toilet?
A leaky faucet repair is $175–$375 and a toilet repair is $175–$425.
What does water leak repair cost in Mission, Edinburg, Pharr, Weslaco and Harlingen?
The same prices apply in every city we serve — there is no different price list by town.
What's included in the price
- • Finding and reaching the leak on the line we are working on.
- • The repair labor and standard repair materials.
- • Turning the water back on and testing the repair before we leave.
- • Cleaning up the work area.
What's not included
- • Leak detection, which is its own line on the price list.
- • Drywall, tile, paint or ceiling finishing, unless you add the repair and patching price.
- • Additional leaks we find on other lines — each one gets its own price you approve.
- • Water damage restoration or mold work.