It is that time of year: winter. During winter, frozen pipes can be a problem for many homeowners. Not only are frozen water pipes inconvenient, but the pressure built up by frozen water can cause the pipe to burst. Bursting pipes can cause serious damage to a home’s ceilings, floors, walls, furniture, etc. And, not to mention, it’s very expensive to repair this type of disaster.
If you turn on a faucet in your house and nothing comes out (or the water trickles out slowly), it is almost certain that the pipe has frozen. Upon making this discovery, you must first determine whether or not the pipe has ruptured. If the answer is yes, turn the water off immediately and contact a licensed plumber. If, however, you are lucky, and the frozen water pipe has not yet ruptured, do not wait for the inevitable. Act immediately to thaw the pipe by taking the following steps:
1) Determine whether you have an isolated or more general problem
- Turn off every faucet in your house
- Freely flowing water from other faucets is an isolated problem: move to step 2
- Affects a number of faucets: call a licensed plumber
2) Locate the frozen pipe
- Uninsulated portion of the pipe
- Located along an outside wall or a colder area of your home (a basement or attic)
- Located underneath a bathroom or kitchen cabinet
- Feel along the pipe to determine the exact area where it is frozen
- Frozen portion of the pipe is accessible: move to step 3
- Not accessible: a plumber should be contacted immediately
3) Open the tap
- Open the cold water tap if the cold water line is frozen and the hot water tap if the hot water line is frozen
- Frozen area of the pipe begins to melt
- Water will flow through the pipe alleviating the pressure
4) Apply heat to the frozen section of pipe (applied from the faucet toward the frozen areas)
- Option 1: Wrap the frozen pipe with hot towels that have soaked in boiling water (continue to do this until the pipe has thawed completely and the water is running smoothly again).
- Option 2: If you have an electrical outlet near the frozen pipe, heat the frozen area of the pipe with a hair dryer, turned to its highest setting, moving the dryer along the pipe (from the faucet down) until the pipe has thawed. If you do not have a hair dryer, you can also use a heat lamp or small portable heater. In addition, if the pipe is close to the wall, by placing a cookie sheet behind the pipe, heat will be reflected onto the pipe and the thawing time will be reduced.
- Option 3: Wrap the frozen pipe with electric heat tape. In doing this, however, make sure the heat tape is plugged into a grounded electrical socket to prevent electrical shock.
Note: When applying heat to a frozen pipe, you should never, ever use a blowtorch, which can cause the water in a frozen pipe to boil resulting in an explosion. In addition, you should never use a heating device with an open flame, which can present a serious risk of fire and exposure to combustion fumes.
Once the pipe begins to thaw and the water begins to run from the faucet, keep the faucet open for several minutes, allowing the ice to clear from the line. You should then turn off the faucet and check the line for leaks. If a leak is discovered you will need to turn off the main water line and either replace or patch the pipe.
While the above steps will generally work, if, after taking such steps, the pipe still remains frozen, do not take any chances and call your plumber immediately.