What to Do When a Pipe Bursts

By the Plano 24 Hour Plumber team · Updated September 2026

Turn the Water Off First

Everything else can wait thirty seconds. A supply line under pressure keeps pushing water into the building until something stops it, so the first move is always the shutoff. If the leak is clearly at one fixture and that fixture has a stop valve that turns easily, close it. If the water is coming from a ceiling, a wall or somewhere you cannot identify, go straight to the main.

In most Texas cities, including Plano, the main shutoff for a house is at the meter box near the curb at the front of the property. Lift the lid and you will find the meter and a valve on the street side or the house side of it. The house-side valve is the one to close, and it usually needs a meter key or a wrench rather than fingers. Some houses also have a shutoff where the supply enters the building, often near an exterior wall or in a utility space.

If you have never located yours, do it on a dry day rather than during an emergency. Lift the lid, look at what is there and make sure the lid comes up easily. It takes five minutes and it is the difference between a wet room and a wet house.

Stay Out of the Dangerous Areas

Water and electricity are the combination to respect. Do not walk into standing water where outlets, extension leads or appliances are involved, and do not reach for a plugged-in appliance to rescue it. If water is coming down near a light fitting or a ceiling fan, leave that circuit off at the breaker if you can reach the panel safely and dry, and otherwise leave the room alone.

An attic is the other place to avoid. A lot of local houses have supply lines and water heaters up there, so an attic burst is common, but an attic with water running through insulation and across wiring is not a place to go exploring. Look from the hatch if you must, and stay out.

Protect What You Can, Safely

Once the water is off and the area is safe, move what is portable: rugs, boxes, electronics, anything on the floor in the affected rooms. Lift curtains off wet floors and put foil or blocks under furniture legs so they do not stain carpet. Open interior doors to help air move. Buckets under an active drip are worth having even after the main is closed, because pipes hold water and will keep draining for a while.

Photograph everything before you tidy up. Wide shots of each affected room and closer shots of the damage are useful later if you are making a claim, and they cost nothing to take now.

What Not to Do While You Wait

Do not cut into a pressurized line, do not try to patch a split with tape while water is running through it and do not open up drywall to chase the leak. Finding the pipe is part of the job you are paying for, and guessing makes it harder. Leave gas appliances alone entirely. If the main water is off and the water heater is easy to reach and dry, switching an electric unit off at the breaker or setting a gas unit to its pilot or vacation position keeps it from heating an empty tank. If it is not easy and dry, skip that step.

Freezes Are the Local Cause

North Texas does not get many hard freezes, and that is exactly why they cause so much damage when they arrive. Plumbing here is often run through attics and exterior walls with modest insulation, which is fine in an ordinary winter and a problem when temperatures stay below freezing for days. The February 2021 storm made that point across the region, and a lot of the repairs that followed were attic and exterior-wall lines rather than anything underground.

The useful takeaway is where to pay attention: hose bibs and outdoor spigots, lines running through an unheated attic, pipes in an exterior wall and anything in a garage that is not conditioned. Disconnecting hoses before winter and covering outside faucets is cheap. Knowing which runs in your house are exposed is worth asking about during any other plumbing visit.

Plano and the Surrounding Towns

Older parts of west and central Plano were built from the 1970s onward, so plenty of houses here still have their original supply lines, and decades of hard water do not help. Newer construction to the north uses flexible PEX, which tolerates freezing better but still fails at fittings and exposed runs. Both types of property call after a freeze. If you are north of the city, Frisco plumbing service covers what to expect from newer housing there.

Arrange an Inspection

Once the water is off, call Plano 24 Hour Plumber and describe where the water appeared, whether it is hot or cold, and whether the main is closed. That is enough to get the right visit scheduled. See burst pipe repair for what the repair involves, leak detection if the source is not obvious, and how a service call works for what happens on the day. If a water heater was involved, the repair versus replacement comparison is worth reading before you decide anything.