What to Do When a Pipe Bursts

By McKinney 24 Hour Plumber · Updated September 2026

Turn the Water Off First

Everything else can wait. The single most useful thing you can do is stop the supply, and on most McKinney properties that means the meter box at the curb: a rectangular lid set into the ground, usually near the sidewalk or the edge of the yard. Inside it is the city meter and a valve on the house side of it. That valve shuts off the whole property. Many newer homes also have a main valve where the water line enters the house, often in the garage or a utility closet, and some have individual valves at a manifold in the attic. If you can isolate just the affected branch there, the rest of the house keeps working while you wait. If you cannot, close the whole thing. Nobody has ever regretted shutting the water off for an hour.

Protect the Room, Not the Pipe

Once the supply is off, spend your time on damage, not on the plumbing. Move rugs, electronics, boxes and anything absorbent out of the wet area. Lift furniture legs onto blocks or foil if you can do it safely. Put down towels and a bucket under an active drip. Open interior doors to help the space dry. Take a few photographs before anything is moved around, because they are worth having later whether or not you make an insurance claim. What you should not do is stand under a ceiling that is sagging or bulging. A ceiling holding water can come down without warning, and no amount of saved carpet is worth being under it.

Stay Away From Water and Electricity

Standing water near outlets, extension cords, appliances or a breaker panel is a genuine hazard, and it is the one part of a burst pipe that can hurt you rather than your house. Do not wade into a flooded room to reach something. Do not operate a switch or plug anything in while standing in water. If water has reached an appliance or a panel and you cannot safely shut off that circuit from a dry position, leave it and say so when you call. Similarly, do not open a hot or pressurized water heater to investigate, and do not attempt to drain one yourself. If you smell gas at any point, leave the house and call the gas utility before anything else.

What You Can Safely Check

With the water off, a few observations genuinely help. Note which rooms and which ceilings are wet, whether the water was hot or cold, and whether the drip slowed after you closed the main. Look for the obvious candidates from a safe distance: an attic run, a pipe in an exterior wall, an outdoor hose bib or a supply line behind a toilet or under a sink. If you can see which fixture or which wall it is coming from, that is useful. What you should not do is start cutting drywall, pulling insulation or trying to clamp a pipe yourself. A wet ceiling is rarely directly below the break, and guessing costs more to repair than the leak did.

Why This Happens Here

In McKinney the pipes that fail first are the ones with the least heat around them. Attic runs, lines in exterior walls, garage plumbing and outdoor hose bibs are all exposed, and North Texas houses are not built for sustained deep cold. That is exactly the pattern that played out across the region during the February 2021 freeze, when the damage mostly appeared during the thaw rather than during the cold itself. Older houses near the downtown square have their own version of the problem, with pipe materials that have been in service for decades. The newer slab homes in Stonebridge Ranch, Craig Ranch and the growth north of US-380 tend to have PEX supply lines, which handle freezing better but still split at fittings. In Prosper and the other fast-built towns nearby, the same story shows up on houses barely out of warranty.

What the Repair Visit Involves

The plumber's first job is control: confirming the water is off and isolating the affected branch. Then it is finding the actual split, working back along the run and checking fittings on either side rather than opening the wall under the wet patch. Once the failure is confirmed you should get a clear explanation and a price before anything is cut. Ask what the quote covers beyond the pipe: drywall openings, insulation that has to come out, and who is responsible for putting finishes back. On a burst pipe call that second part is often the larger job, and it is much better discussed before the work starts than after.

Arrange an Inspection

If water is running now, shut it off and call. McKinney 24 Hour Plumber explains what burst pipe repair involves, and where the source is not obvious, leak detection comes first so the wall is opened once. If the freeze also took out the water heater, our repair versus replacement guide covers that decision. You can also see how calling works before you call.