Same-Day ServiceMost calls booked today
Non-Invasive ToolsAcoustic & thermal detection
Written FindingsPhotos and notes after each visit
Local SpecialistsAcross the Las Vegas Valley
Meter-to-House Service Line

Finding Leaks on Your Main Water Line

Quick Answer

How can I tell if my main water line is leaking?

Close the main shut-off valve at the house and watch the water meter. If the leak indicator still moves, water is escaping on the service line between the meter and the home. Wet ground along the line, low pressure and a sudden bill increase are other common signs.

Your main water line carries full city pressure from the meter box at the curb to the shut-off valve at the house. Because it is buried and pressurized, even a small crack can waste thousands of gallons and undermine walkways or the driveway above it. Our water line leak detection isolates this one pipe and locates the failure precisely.

Older homes may still have galvanized or thin copper service lines, while newer builds use PEX or polyethylene that can be cut by roots or shifting soil. Once the leak is found we can arrange main water line repair or, if the line is failing in several places, a full replacement. If the meter test points to plumbing inside the house instead, we switch to indoor water leak detection or check for a slab leak.

  • Meter and shut-off valve isolation test
  • Electronic tracing of the service line route
  • Acoustic pinpointing under concrete and gravel
  • Clear repair or replacement recommendation
Pressure gauge and valve on an outdoor water line being tested for leaks in Las VegasMeter to house
Warning Signs

Signs Your Main Water Line Is Leaking

Main line leaks can be large, but desert soil often hides them. These are the most common clues.

Meter spins with the main valve closed

If the meter moves after the house shut-off is closed, the leak is between the two.

Wet ground between street and house

A soft, damp strip along the path of the line is a classic sign of an underground leak.

Sudden drop in water pressure

A large break can lower pressure at every fixture in the home.

Water bill spike

A sharp, unexplained jump in usage, the kind our high water bill investigation tracks down.

Sinking walkway or driveway

Water washing out soil can cause concrete above the line to settle.

Hissing near the meter box

You may hear water rushing at the meter or near the house shut-off.

Talk to a Specialist About Water Line Leak

Call or send a request and we will explain the locating work.

Our Process

How We Locate a Main Line Leak

Test at the meter

Confirm water loss with the house supply valve closed.

Trace the route

Find the actual path of the buried pipe from meter to house.

Acoustic pinpointing

Listen through soil and concrete for the leak signature.

Repair plan

Mark the spot and explain repair or replacement options.

Why Choose Us

Accurate Main Line Locating

A main line can run 30 to 100 feet under landscaping and concrete. Finding the exact break keeps the dig small and the repair simple.

Service line experience

Copper, galvanized, PEX and poly lines common in the valley.

Precise locating

Electronic tracing plus acoustic confirmation.

Clear next steps

Clear findings explained in plain language.

Fast response

Large leaks get priority scheduling.

FAQ

Water Line Leak Detection FAQ

How do I check if my main water line is leaking?

Close the main shut-off valve at the house and watch the meter. If it still moves, the leak is likely on the service line between the meter and the house.

Who pays for a main water line leak in Las Vegas?

Pipes on the house side of the meter are usually the homeowner's responsibility. Leaks before the meter are handled by the water utility, such as the Las Vegas Valley Water District.

Can a water line leak be repaired without replacing the whole line?

Often yes. Once the leak is pinpointed, a single section can usually be repaired. Lines with repeated failures may be better replaced, sometimes alongside whole-house repiping.

How long does it take to find a main line leak?

Most service line leaks are located during a single visit, depending on line length and surface conditions.

What causes main water line leaks?

Age, corrosion, shifting soil, tree roots and high water pressure are the most common causes in Las Vegas.