24/7 — Emergency Leak Detection Available Day or Night(951) 299-3473
Call Now: (951) 299-3473

Main Water Line Leak in Your Yard: Signs, Detection and Repair

By the Murrieta Leak Pros team ·

Call Now: (951) 299-3473Request a Callback

Your main water line carries water from the meter at the curb into your home. When it breaks underground, the leak can run day and night. In Murrieta, this line belongs to the homeowner, not the water district. Our water leak detection team traces buried lines and marks the leak before any digging. Call (951) 299-3473.

What is a main water line leak?

A main water line leak is a break in the buried pipe that runs from your water meter to your house. Because the pipe is under pressure, water flows out all the time, even when every faucet is off. It often shows up as a wet yard, low pressure or a bill that keeps rising.

Murrieta homes get water from Eastern Municipal Water District or Rancho California Water District. The district owns the meter and the street side. The line from the meter to your home is yours to repair.

Call Now: (951) 299-3473
Orange CPVC pipe tee and repaired joints inside a framed wall cavity
Orange CPVC pipe tee and repaired joints inside a framed wall cavity

What are the signs of a main water line leak?

Look for a soggy or sunken area between the meter and the house, a patch of grass that stays greener than the rest, water seeping onto the sidewalk or driveway, lower water pressure, and a water meter that keeps moving when nothing is on. A higher water bill often comes with these signs.

  • Wet ground or puddles that do not dry, even in hot weather
  • Cracks or sinking in the driveway or walkway above the line
  • Sputtering faucets or air in the lines
  • Dirty or rusty water after the line has been disturbed
  • The sound of running water near the meter box

How do I know the leak is in the main line?

Do a two-step meter test. First, turn off all water and watch the meter for 30 minutes. If it moves, close your main shut-off valve at the house and watch again. If the meter still moves with the house valve closed, the leak is almost always in the line between the meter and the house.

  1. Turn off every faucet, toilet, appliance and the sprinkler timer.
  2. Check the meter's leak indicator, then wait 30 minutes.
  3. If it moved, close the main valve where the line enters your home.
  4. Watch the meter again. Still moving means an outside leak.
  5. Also check that irrigation valves are not leaking, since they connect to the same supply.

Have a leak? Don’t wait for it to get worse.

Our technicians are standing by 24/7 with the equipment to find your leak fast. No unnecessary digging, no guesswork.

Call Now: (951) 299-3473Request a Callback

How do professionals find an underground water line leak?

A technician first traces the path of the buried pipe with electronic locating equipment. Then ground microphones listen along the line for the sound of escaping water. A pressure test confirms the line is losing water. The leak is then marked on the ground so the repair needs only one small dig.

Larger lots, like many in Los Alamos Hills, can have long service lines and more ground to cover. Older homes near Historic Murrieta may have older pipe that is more likely to crack.

How much does main water line leak repair cost in Murrieta?

Tracing an underground service line in Murrieta costs about $250 to $600. Replacing a section of yard water line is often about $1,500 to $4,500, depending on depth, length and what sits on top, such as a driveway. Your price is confirmed before work begins.

Approx. costs (estimates for planning only)
ServiceApprox. cost
Hidden water leak detection visit$200 to $550
Underground service line trace$250 to $600
Replace a section of yard water line$1,500 to $4,500
Trenchless pipe repair$3,500 to $12,000

Trenchless methods can replace a line with less digging through lawns and hardscape. Learn more on our leak repair and trenchless pipe repair page.

Should I fix just the leak or replace the whole line?

A spot repair makes sense when the pipe is in good shape and the break is a one-time problem, such as damage from a shovel or a tree root. Replacing the line is often better when the pipe is old, has leaked more than once, or shows corrosion along its length.

Spot repair vs. line replacement
Choose a spot repair whenConsider replacement when
The leak is a single breakThe line has leaked before
The rest of the pipe looks soundThe pipe is old or corroded
The line is short and easy to reachThe line runs under a driveway or slab

If the line turns and runs under the house, the problem may be a slab leak. See the signs of a slab leak.

Frequently asked questions

Who pays for a leak between the meter and my house?

In most cases the homeowner does. The water district owns the meter and the line on the street side; the service line to your home belongs to you.

Can I keep using water with a main line leak?

You can for a short time if the leak is small, but it wastes water and can wash out soil. Shut the main valve when you can and get it found soon.

How deep is a main water line?

It varies by property and age of the home. The locating step finds the path and approximate depth before any digging.

Can a main line leak damage my foundation?

It can if the leak is close to the house. Water that soaks the soil near a slab can add to settling or cracking over time.

Prices are approximate estimates for planning. Your final price depends on your property and is confirmed before work begins.

Where can I get help with this in Murrieta?

Murrieta Leak Pros offers Water Leak Detection, Leak Repair & Trenchless Pipe Repair, Slab Leak Detection. We serve every Murrieta neighborhood:

We also serve Temecula, Menifee, Wildomar, Lake Elsinore, Winchester, French Valley, Canyon Lake, Hemet and Sun City. See all service areas →

More leak guides

White PVC sewer line wye fitting with rubber couplings buried in gravel

Leak Repair Options: Spot Repair, Reroute or Repipe?

Once the leak is found, you have choices. Compare spot repair, rerouting, trenchless repair and repiping.

Read the guide →Technician testing for a hidden leak with detection equipment at floor level

Water Heater Leaking? Causes and What to Do Right Now

A puddle by the water heater is not always the tank. Here is how to find the source and stay safe.

Read the guide →White PVC pipe fitting with rubber couplings buried in gravel

Sprinkler and Irrigation Line Leaks: How to Find Them in Murrieta

Broken sprinkler lines can waste water every time the timer runs. Here is how to find them zone by zone.

Read the guide →

All leak guides → · FAQ → · Home

Ready to find your leak?

Our technicians are standing by 24/7 with the equipment to find your leak fast. No unnecessary digging, no guesswork.

Call Now: (951) 299-3473Request a Callback
Call Now — (951) 299-3473