What to Do When a Pipe Bursts: The First 10 Minutes

What to do when a pipe bursts, minute by minute

Gas comes first. If you smell gas at any point, stop everything, leave the house, and call 911 and CenterPoint Energy's emergency line from outside. Natural gas that collects indoors can reach an explosive level, and open flames and electrical equipment can ignite it.

With no gas smell, work through this order:

1. Minute 0-2: Close the main shut-off valve. Turn a round handle clockwise until it stops. Turn a lever a quarter turn, so it sits across the pipe.
2. Minute 2-3: Stay clear of wet electrics. Do not touch outlets, cords or appliances while standing in water. Switch off that room's breaker if the path to the panel stays dry.
3. Minute 3-4: Shut down the water heater. Set a gas control to off or pilot. Turn off the breaker for an electric unit.
4. Minute 4-5: Drain the lines. Open a tub spout and the lowest cold faucet in the house. That empties what is left in the pipe and takes pressure off the break.
5. Minute 5-7: Move what you can. Pull rugs, lift furniture legs onto foil or wood blocks, and set buckets under drips.
6. Minute 7-9: Record it. Take video of the break, then the wet rooms, before cleanup starts.
7. Minute 9-10: Call. Say where the water came from, what you shut off, and whether the meter has stopped.

Can't find the main shut-off valve?

Check the street-facing side of the house first. Most homes have the valve in one of a few spots, and a slab house has no basement to hide it in.

Where to look	What you will see	What to do
Outside wall near a hose bib	A valve on a pipe rising from the ground	Turn it by hand
Garage wall	A valve on a pipe near the water heater	Check that it feeds the house and not only the heater
Curb meter box	A concrete or plastic lid in the lawn	Lift the lid and look for a house-side valve
Water heater cold inlet	A valve on the top of the tank	Closes the heater only, so keep looking

Do not force a valve that will not move. Old gate valves can snap, which makes a bad hour worse. The valve on the street side of the meter usually belongs to the water utility, so call the utility if nothing else stops the flow. In Houston that means 311. In Bellaire or West University Place, each a separate city, call that city's public works line.

What can wait until the water is off?

Almost everything else can wait a few minutes, but drying cannot wait long. The EPA gives you a window of 24 to 48 hours to dry water-damaged areas before mold can take hold. Run fans, mop standing water, and pull wet rugs out to dry.

Stay out from under a ceiling that bulges or sags. Water can sit above the drywall, and the weight can bring it down.

Call your insurer the same day, and keep every receipt. Triple-I says standard homeowners and renters insurance covers burst pipes, though a sample HO-3 policy leaves out the system the water escaped from. Expect the water damage and the pipe repair to be treated differently, and check your own policy.

How do you confirm the water is really off?

Read the water meter, because a closed valve can still pass water. Old gate valves wear at the seat, so the handle stops turning while a stream keeps running behind it. Lift the meter box lid and watch the dial for a full minute. Most meters have a small leak indicator, often a triangle or star, that spins at the slightest flow.

• Dial still: the valve is holding, and the house side is dead.
• Dial creeping: the valve is passing a little water. Close the house-side valve at the meter box if there is one.
• Dial spinning: the valve is open, or the split is on the run from the meter to the wall.

That last result changes the job. A break on the yard side of your shut-off keeps running whatever you do at the house, so look for soggy ground or a bubbling patch along the line. Call the utility if you cannot stop it at the meter.

Where the water shows up tells you what comes next

The wet spot is your first clue to the repair. This table covers the usual patterns:

Where you see water	Likely break	What the repair usually involves
Ceiling or top of a wall	Attic or second-floor supply line	Opening drywall, then drying the insulation above it
Behind a sink or toilet	Shut-off valve or flex connector	Often a quick swap, since the part sits at the surface
Garage or outside wall	Line in an unheated wall	Opening the wall near the split
Floor, warm or wet	Line under the slab	Locating the break before anyone cuts concrete
Yard near the meter	Service line to the house	Marking utilities through 811, then digging to the break

Water travels along framing and can appear several feet from the split. A stain in the hallway may start over the bathroom, so photograph the spot and note what sits above it.

Why do pipes burst in Houston if it rarely freezes?

Pipes here fail for more reasons than cold. Freezes are rare but severe: during Winter Storm Uri in February 2021, plumbing burst in buildings across Texas and water service was disrupted for more than 12 million people.

The rest of the year, the likely causes are slower:

• Worn fittings on supply lines to sinks, toilets and appliances
• Older pipe that has thinned from the inside
• Clay soil moving lines under and around the slab
• A hose or flex connector that has aged out

The Connecticut Insurance Department cites an Institute for Business & Home Safety study that blamed a burst supply line for half of the water damage incidents involving washing machines. Triple-I suggests a yearly hose check, with new hoses every five to seven years. If water is coming up through the floor, the break may be under the foundation, and that calls for slab leak repair, which starts with locating the break.

What our team tells homeowners to practice now

Find your main shut-off valve this week, while the house is dry. Our team's general advice is simple, and it costs nothing:

• Turn the valve fully closed and open it again, so you know it moves.
• Tag it, and show everyone in the house where it is.
• Keep a flashlight and a pair of work gloves nearby.
• Label the breaker for the water heater.

A valve that has sat for years can seize, and a ten-minute drill today beats learning that with water on the floor. If yours sticks, have it replaced before you need it.

How do you turn the water back on after a repair?

Bring the pressure back slowly, because a sudden surge can loosen a fresh joint or an old fitting. Work in this order:

1. Close every faucet you opened, except one at the far end of the house.
2. Open the main valve a little, then stop and listen for hissing or spraying.
3. Let the open faucet spit air until the flow is steady, then close it.
4. Check the repair, the ceiling and the meter before you open the valve fully.
5. Run a hot tap until it stops sputtering, so you know the tank is full.
6. Turn the gas control or the breaker back on.

Expect cloudy or rust-colored water for a minute or two, since the surge stirs up scale. Unscrew and rinse the faucet aerators if the pressure seems low afterward.

When can a plumber take over?

A plumber takes over once the water is off and you know what failed. PipeElectric's phones are open Sunday to Thursday from 7 AM to 8 PM and Friday from 7 AM to 6 PM. Saturday is closed.

Outside those hours, keep the main valve closed, keep drying, and call when the phones open. Do not reopen the valve to test the pipe. If water still cannot be stopped, use the utility's emergency line.

Our burst pipe repair page explains what comes next, and emergency leak repair covers leaks that are not a full break. Either way, you get a clear, upfront quote once the job has been looked at.