Mainline Leak Repair

What This Service Involves

The mainline stays under pressure whenever your water supply is on, so a break here wastes water around the clock and can undermine walkways and foundations. In Western Washington, ground shifting from saturated winter soil and freeze-thaw cycles is a frequent cause of mainline cracks and fitting failures. We shut off and depressurize the line, excavate to the break, and replace the damaged pipe or fitting with properly rated materials. After repair we pressurize and confirm the line holds with no pressure drop.

Benefits

Stops continuous, around-the-clock water loss; Restores full system pressure to every zone; Prevents erosion near paths and foundations; Uses pressure-rated pipe and fittings; Verified leak-free with a pressure hold test

Our Process

1) Shut off supply and depressurize the mainline; 2) Locate and expose the break point; 3) Cut out the damaged pipe or fitting; 4) Install rated replacement and couplings; 5) Repressurize and confirm the line holds

What Affects the Cost

Depth and location of the mainline break; Pipe diameter and material; Excavation difficulty and access; Fittings and couplings required; Emergency versus scheduled repair

Best Time of Year

Repair promptly in any season, but mainline breaks are most common in spring after winter ground movement.