
Slab Leak Detection
Finds a supply leak under the concrete with meter tests, listening gear and thermal imaging, before anyone breaks the floor.
Water coming up through the floor, a ceiling dripping or the meter turning fast cannot wait for next week. The first job is stopping the water; the second is finding where it is coming from.
Leander Leak Detection is a free referral service. Calls are answered by independent local providers who set their own prices.

Emergency leak detection in Leander gets a fast visit when water is spreading or the meter shows a large leak. An independent local plumber helps you shut off the water by phone, then finds and stops the leak.
An emergency leak is any leak that is causing damage right now or is likely to within hours: water coming through a floor or ceiling, a pipe spraying inside a wall, a yard turning into a pond, or a meter showing a large, steady flow. In those cases the priority is stopping the water before anything else.
Emergency leak detection combines quick phone help to shut off the supply with a visit to find the source. Once the water is under control, the work becomes regular slab leak detection or water line leak detection, depending on where the leak is. The main leak detection Leander page explains every service.
The provider walks you through closing the main valve and turning off the heater.
A local plumber comes out as soon as their schedule allows.
Tests and tools narrow down where the water is coming from.
The leak is capped or repaired, and a permanent fix is planned if needed.
Water rising through grout, carpet or wood.
Water staining or dripping from a ceiling.
Loud hissing or spraying inside a wall.
The large hand moves quickly with everything off.
Water bubbling up or pooling between meter and house.
Sudden loss of pressure throughout the house.
A floor area hot to the touch.
Water near outlets, panels or appliances.
Warm spot on the floor? A provider can talk it through by phone.Open 24/7 · Talk to a local provider in Leander
Call 24/7 (512) 254-7509Many emergency calls start with a slow problem that suddenly gets worse. A small slab leak can wash out the soil around a pipe until the pipe breaks under the weight of the slab. A service line stressed by Leander's shifting clay can crack after a heavy rain follows a dry spell.
Weather events cause bursts too. In February 2021, Winter Storm Uri knocked out power across Central Texas, and Leander's water system struggled while one treatment plant was already offline. Freezing temperatures split pipes in attics, exterior walls and outdoor spigots across the region. A hard freeze is rare here, but when it comes, burst pipes follow.
Failed connections, supply lines to toilets and sinks, washing machine hoses and water heaters also cause sudden leaks. They are not hidden leaks, but they often lead to calls for help finding damage that has spread under floors or into walls.
Label your main shut-off valve now, before you need it, and show everyone in the house where it is. In an emergency, the minutes saved finding the valve make a real difference.
In a slab home, there is no basement to catch water, so a leak under the floor or in a wall spreads across flooring quickly. Tile and concrete do not absorb much, but baseboards, drywall, carpet and cabinets do. Acting quickly limits how much of that has to be replaced.
Leander homes usually have a main valve near where the supply enters, often by the garage, plus the curb stop in the city's meter box. If you cannot find or turn your valve, a provider can help by phone. Neighborhoods across Leander, from Old Town to Travisso, follow the same pattern.
Water on the floor right now? Shut the main valve and call.Open 24/7 · Talk to a local provider in Leander
Call 24/7 (512) 254-7509Water near electrical and gas appliances is checked first.
The provider identifies whether the leak is supply, drain or appliance.
A cap, valve or temporary repair stops the water so service can return.
You get a plan and price for a permanent repair if one is needed.
Water meter moving with every tap off? Call (512) 254-7509 for a local provider.Open 24/7 · Talk to a local provider in Leander
Call 24/7 (512) 254-7509| Situation | Call for an emergency visit | Next-day visit is usually fine |
|---|---|---|
| Water spreading on floors | Yes | No |
| Meter moving slowly, no visible water | Not usually | Yes |
| Hot floor spot getting worse | Yes | No |
| Bill higher than usual | No | Yes, schedule detection |
| Factor | Why it matters | What to ask on the call |
|---|---|---|
| Time of day | Nights, weekends and holidays usually cost more | What is your after-hours rate? |
| Size of the leak | Bigger leaks may need more urgent work | Can you stop it today? |
| Location | Slab and wall leaks take longer to reach | Where do you think it is coming from? |
| Temporary vs permanent fix | A cap now and repair later may be two visits | Will this be a temporary fix? |
| Water damage | Drying and repairs are separate work | Can you recommend a water damage company? |
Call right away if water is on the floor or coming through a ceiling, if the meter is moving fast with everything off, if there is a hot spot that is spreading, or if water is near electrical outlets or panels. Close the main valve first. If the leak is in the meter box or the street, call the City of Leander utility line as well.
Warm spot on the floor? A provider can talk it through by phone.Open 24/7 · Talk to a local provider in Leander
Call 24/7 (512) 254-7509If water is near outlets, appliances or the electrical panel, do not walk through it. Switch off power at the breaker only if you can reach it safely from a dry spot.
Once the leak is stopped, dry the area quickly with fans and dehumidifiers, and call your insurer. Keep every invoice and photo. If the leak raised your water bill, the City of Leander may credit part of it through a leak adjustment within 90 days of the completed repair. A licensed plumber's invoice qualifies for the higher credit, up to $250.
Most emergency leaks are made worse by the minutes spent looking for a valve or a phone number. A little preparation goes a long way. Find your main shut-off valve now and make sure it turns; valves that have not moved in years can stick. If yours is hard to turn, ask a plumber to look at it on any routine visit.
Save the number on this page in your phone, and keep a flashlight near the main valve. Know how to switch your water heater to vacation or pilot mode, and where the breaker for it is if it is electric. If you travel, consider closing the main valve before you leave. In Leander, where most homes sit on slabs, a leak that starts while you are away can spread across floors for days before anyone notices.
Water on the floor right now? Shut the main valve and call.Open 24/7 · Talk to a local provider in Leander
Call 24/7 (512) 254-7509Close the main shut-off valve, usually where the line enters the house or at the meter box. Turn off the water heater, move valuables out of the water and call.
Many homes have a valve where the line enters, often near the garage or an outside wall. The curb stop in the meter box also shuts off the supply, though the box is city property.
If the large sweep hand moves while everything is off, a lot of water is being lost. Close the main valve and call, even if you cannot see water yet.
Calls are answered 24/7. Whether a provider can come right away depends on the time and their schedule, and after-hours rates often apply.
Stop the water first. Then take photos and call your insurer. Many policies expect you to prevent further damage, which is why shutting off the water matters.
Leaks at the meter or in the street are a city matter. Call the City of Leander utility line; a plumber can help confirm which side the leak is on.

Finds a supply leak under the concrete with meter tests, listening gear and thermal imaging, before anyone breaks the floor.

Fixes the leaking line once it is pinpointed: a spot repair through the slab, or a plan to bypass it.

Traces leaks on the buried service line between the meter box and the house, under lawn or driveway.

For warm floor spots and a heater that runs nonstop. Isolates the hot side and finds where it escapes.

Camera and test-plug work on drain lines under the foundation, where a leak soaks the soil quietly.
Runs a new line through the walls or attic so a failed under-slab pipe can be abandoned in place.




Representative photos of the kind of work local providers handle.
Talk to a local provider
One call connects you with an independent plumber who works in Leander. They explain the likely cause and give a price before any work starts.
(512) 254-7509