What is the first thing to do when a supply line bursts?
Shut off the main at the service entry, then turn off power to the wet rooms at the panel where it is safe, and call the line. Shutting off the main is the step that stops the flow.
A burst supply line can release water faster than a homeowner can mop it, so the main comes first. The main is usually found where the service line enters the house, and the crew can show a homeowner where it is on the call. Once the water is off, the damage can be assessed, and the cleanup can begin without the water continuing to run into the wall and floor.
Is supply water clean enough to dry in place?
Clean supply water can often be dried in place when it is removed soon and the materials are not soaked. Water that has been standing for a long time or has mixed with other materials is judged on site.
Supply water starts as clean water, and many materials that are wet with it for a short time can be dried. The category can change, however, if the water sits or touches floors, insulation or fixtures for a long period. The crew judges the category from the source, the time it sat and what it touched, and it sets whether a material is dried or removed.
Why does a burst pipe in a wall cause so much damage?
Because the water runs down the cavity and spreads into the floor and the room on the other side. The surface shows only the place where the water came through, and the cavity holds the rest.
A pipe in a wall releases water into the cavity between the studs, where it runs down to the bottom plate and then along the floor. The drywall takes up water from the cavity side and bows or stains, and the floor under the wall takes the water that runs out. The damage is often largest at the bottom of the wall and under the floor covering, and that is why the opening is made low in the wall.
How long does the break take to find?
It depends on where the water has gone. A break in an open area is found quickly, while one inside a wall or under a floor can take readings and small openings to locate.
The readings show the wet path, and the break is usually near the top of the path. The crew does not guess at the break. It follows the readings, opens the smallest area that answers the question and shows the homeowner where the wet material begins. The break is then repaired by a licensed plumber, and the crew's record is passed to that plumber.
Does a burst pipe need an insurance claim?
Often yes. The insurer decides whether the loss is covered, and the record of the shut-off time, the photographs and the readings is what the claim needs.
A homeowner should note the time the main was shut off, photograph the wet area before anything is moved and keep the plumber's invoice for the break. The insurer decides what is covered, and the cause and the duration of the leak can matter to that decision. The insurance claims guide linked from this page sets out the general pattern a homeowner should expect.