If you find a leak close the main shut off valve to your house and call a plumber immediately.
Unfreeze pipes in attic.
Just because it s 32 degrees outside doesn t mean the pipes will reach those temperatures.
Set a fan up to blow room temperature air at the cold wall.
Thaw frozen pipe in a wall.
What to do if a pipe bursts.
Otherwise you can thaw out the pipe by wrapping the pipe in a single layer of thermal tape or blowing air from a hair dryer back and forth across the pipe.
Use a space heater heat lamp or hair dryer to thaw the frozen length of pipe.
If you need to unfreeze water pipes leave your faucets open slightly to help thaw out the pipes.
If a span of pipe is particularly vulnerable to low temperatures electric pipe heating tape acts like an electric blanket for pipes to prevent freezing.
Controlled by a thermostat to activate only when the attic temperature plunges dangerously low the tape typically consumes about 5 watts per foot.
For fixing frozen pipes in an exterior wall without opening the wall take the following steps block wind from the outside of the wall as best you can.
Water freezes at 32 degrees fahrenheit but indoor pipes are somewhat protected from outdoor temperature extremes even in unheated areas of the house like in the attic or garage.
Wrapping freezing pipes with thermostatically controlled heat tape from 50 to 200 depending on length is also an effective way to quickly thaw a trouble spot.
Open any cabinet doors or panels to expose the pipe to the warmer room air.
Don t thaw pipes using a propane torch which presents a fire risk.