What to Do in the First Ten Minutes After a Pipe Bursts

A burst supply pipe releases several gallons a minute, and the first ten minutes decide whether you are dealing with a wet floor or a rebuilt ceiling. The plumber’s arrival time matters far less than what you do before they get there. This is the order of operations.

1. Stop the water at the main

Every other step waits on this one. The main shutoff valve is usually in one of three places: at the water meter near the street, inside a box in the ground with a lid; where the supply line enters the house, often on the front wall near a hose bib or in a garage or utility room; or in a basement or crawl space near the front foundation wall. Turn it clockwise to close. If it is a lever, turn it perpendicular to the pipe.

If you cannot find it, close the valve on the water heater and the shutoffs under sinks to isolate what you can, and call. We will help you locate the main over the phone.

Find your shutoff now, before you need it, and make sure everyone in the house knows where it is.

2. Open a low faucet

With the main closed, open a faucet at the lowest point in the house, such as a basement sink, a tub, or an outdoor hose bib. That drains the pressure and the remaining water out of the system instead of out of the break.

3. Cut power where water and electricity meet

If water is near outlets, appliances or the electrical panel, switch off the affected circuits at the breaker. If the panel itself is wet or you would have to stand in water to reach it, do not touch it; call the utility. If the water heater is electric and the tank may drain, switch off its breaker so the elements do not burn out dry.

4. Move what you can and get air moving

Pull furniture, rugs and boxes out of the wet area. Lift curtains off the floor. Put foil or blocks under furniture legs you cannot move. Open windows if the weather allows and start fans. Water that sits in carpet pad and drywall for more than a day invites mold; water that is dried within hours usually does not.

If a ceiling is sagging with trapped water, place a bucket beneath it and poke a small hole with a screwdriver to let the water out in a controlled stream. A ceiling that comes down on its own makes a far bigger mess.

5. Photograph everything

Before you clean up, take photos and video of the source, the standing water, and every damaged item and surface. Insurers pay on documentation, and sudden, accidental water damage from a burst pipe is covered by most policies. Keep the failed section of pipe if the plumber removes it; adjusters sometimes ask to see it.

6. Call

With the water stopped and the damage contained, call for a plumber. Describe where the break is, what kind of pipe it is if you can tell, and whether you have found the shutoff. Emergency dispatch prioritizes active flooding, and you will be given an honest arrival window.

What not to do

Do not try to thaw a frozen pipe with an open flame. Do not run the water heater dry. Do not turn the main back on to “check” whether the leak has stopped; it has not. And do not wait to see if it gets worse. A slow drip from a split pipe becomes a flood the moment pressure returns.

Afterward

Ask the plumber what caused the failure. Freeze damage, corrosion, a bad fitting and water hammer each point to a different prevention: insulation, a repipe, a repair to the rest of the run, or a pressure regulator. A burst pipe is often the first of several unless the cause is addressed.