Immediate Action: Do This Now
- Close the valve at the meter box if you can safely reach it (a meter key may be needed). The house shutoff will not stop a leak between the meter and house.
- If the leak is at the meter or on the street side, report it to Dallas Water Utilities through Dallas 311.
- Keep people and cars away from soft or sinking ground.
- Request emergency help and describe where the water is surfacing.
What Causes a Broken Main Water Line?
Service lines fail for a few common reasons in Dallas.
Shifting clay soil
Expansive soil shrinks in drought and swells in rain, stressing buried lines.
Old pipe material
Older galvanized or early plastic lines wear out.
Tree roots
Roots can crush or crack lines.
Digging damage
Landscaping, fencing, or utility work.
How Serious Is a Broken Main Water Line?
A broken service line wastes water continuously and can undermine soil under driveways, walkways, or the foundation. Low pressure in the house is another sign. It is urgent once you see water surfacing or the meter spinning with everything off.
What Should You Do Before the Plumber Arrives?
- Keep the water off at the meter until the repair.
- Mark where water is surfacing so the plumber can find it quickly.
- The plumber should arrange 811 utility locating before digging. Mention any sprinklers or buried cables you know about.
Can It Be Repaired or Does It Need Replacement?
A single break is excavated and repaired. Older or repeatedly failing lines are often replaced, sometimes by trenchless boring under driveways and landscaping. A permit may be required. See pipe repair and leak detection.
How Much Can Emergency Main Water Line Repair Cost?
Emergency and after-hours visits typically cost more than scheduled work, and the total depends on what failed and how hard it is to reach. We do not publish a price for this specific repair. See emergency plumber cost for published ranges with linked sources, and ask before work starts whether there is a dispatch or after-hours fee and whether it is credited toward the repair.
Related Problems
FAQs
Is the main water line my responsibility?
The property owner is generally responsible for the line on their side of the meter.
How do I tell if the leak is mine or the city’s?
Leaks between the meter and house are usually yours; leaks at the meter or street side go to Dallas Water Utilities.
Shut off the water first if you can, then request emergency help.