What should I do when a pipe bursts after a freeze?
Close the main water valve first, then open the lowest and highest taps to drain the lines. Stay out from under wet ceilings, keep away from outlets and fixtures that water is running through, and take photos. Call a plumber for the pipe and (833) 490-5225 for the water.
If water is falling through a light fixture or a ceiling fan, leave the room. Cut power at the panel only if you can reach it while standing on dry ground, and call the electric utility if you cannot.
Move furniture and valuables out of the way if it is safe, and lift wet rugs. Do not try to melt a frozen pipe with a torch or open flame. Warm, slow thawing is safer, and a split pipe will leak when it thaws regardless.
Why do pipes burst after the thaw instead of during the freeze?
Ice inside a pipe plugs it and raises the pressure between the plug and a closed tap, which splits the pipe. The split stays sealed by ice until it melts. That means a house can look fine on a frozen morning and flood by afternoon, often when no one is watching.
This is why the first warm day after a freeze deserves attention. Walk the house, check the attic, the garage and the ceiling, and look at your water meter. If it moves with everything off, a line has split.
If you are travelling, a neighbor who knows where the main valve is can save the house. A home left unheated and unattended through a freeze is the situation where a split line can run the longest before anyone sees it.
What did the February 2021 freeze show about North Texas homes?
The February 2021 winter storm brought DFW to a low of minus 2 degrees Fahrenheit, the second-coldest temperature on record there. Widespread power outages and burst pipes followed across Texas. Reports on how long freezing lasted disagree, so no hour count is given here. The lesson is that rare does not mean never.
Homes here are built for mild winters, and pipes in attics, exterior walls and garages often have little protection. During that storm many people lost power as well as heat, which is a harder situation than a cold snap alone.
Damage in Celina specifically was not recorded for this page, so take it as a regional reference. The practical points are to know your main valve, insulate exposed lines and plan for a thaw as well as a freeze. The freeze and burst pipes guide goes through preparation.
How soon should drying start after a freeze burst?
As soon as the water is stopped. The EPA advises drying water-damaged materials within 24 to 48 hours to limit mold, but that is a guideline, not a deadline. Mold can grow in damp insulation or drywall even if it is later dried, so a musty smell afterward deserves attention.
Cold air slows evaporation, so a frozen-pipe job can need more equipment time than the same leak in summer. An attic that is cold overnight and warms by day can also hold moisture in insulation for longer than you expect.
If mold is suspected, Texas licenses mold assessors and remediators separately through the Texas Department of Licensing and Regulation. See mold inspection and mold remediation for what each step involves.