Slab Leak Detection in Arlington: How the Visit Pinpoints the Leak

A slab leak detection visit in Arlington usually takes one to three hours. The tech confirms the leak at the water meter, isolates hot and cold lines with pressure tests, maps the pipe route under the floor, and then uses acoustic listening and thermal imaging to find the exact spot. You get a marked location, photos and repair options before any concrete is cut. Call (817) 285-5426 to book.

Our slab leak detection Arlington team handles these visits 24/7 across the city, from older homes near UTA to newer slabs in Viridian and southwest Arlington.

Why do Arlington homes get slab leaks?

Most Arlington homes sit on concrete slabs over expansive clay soil. The clay swells after heavy rain and shrinks in summer drought, which moves the slab and stresses the pipes under it. Copper lines can also wear thin from water flow and minerals over time. Hot water lines leak most often because heat makes the pipe expand and contract every day.

If you are not sure you have a slab leak yet, start with our slab leak signs guide.

What are the 6 steps of the visit?

1. Meter test. With every faucet off, the tech watches the meter's leak dial. Movement confirms water is escaping somewhere.
2. Isolate the system. Shutting off the water heater supply and outdoor lines tells whether the leak is on the hot side, the cold side, or outside.
3. Pressure test. Each line is pressurized and watched. A line that loses pressure is the leaking one.
4. Map the pipe route. A line locator traces where the pipe runs under the slab, so the search follows the real path.
5. Pinpoint. Ground microphones listen for the hiss of escaping water, and a thermal camera looks for a warm bloom over hot water leaks. Tracer gas is used in hard cases.
6. Mark and report. The spot is marked on the floor, and you get photos, readings and repair options.

What does slab leak detection cost in Arlington?

A slab leak search in Arlington usually costs about $250 to $600. Basic leak detection runs about $150 to $400, and a buried water line from the meter to the house about $200 to $500. The repair is priced on its own once the leak is found, so you only pay to fix what is broken.

General estimates for Arlington, TX in 2026. Your exact price is confirmed before any work begins.

For a full breakdown, see our leak detection cost guide.

What happens after the leak is marked?

You choose a repair. A spot repair opens a small section of slab, fixes the pipe and patches the concrete, usually $1,500 to $4,000 in Arlington. A reroute runs a new line through the attic or walls and leaves the slab alone. If the pipes are failing in many places, a whole-house repipe can cost less over time than repeated spot repairs.

Before you decide on a repipe, a house repiping cost calculator gives you a rough budget by home size and pipe type. Our slab leak repair options guide compares all three choices.

How should you get ready for the visit?

• Clear the area around the water heater and the main shut-off valve.
• Know where your water meter box is, usually near the street.
• Note any warm spots, damp flooring or sounds of running water.
• Have a recent water bill handy to compare usage.
• Keep pets and kids out of the rooms being tested, since the tools need quiet.

Comparing providers first? A good leak detection company will walk you through these same steps on the phone and give you the price up front.

If the meter shows a leak but the slab tests dry, the problem may be in the yard line. Our underground water line guide explains that search.