At what temperature do pipes freeze?

Anytime the temperature outside drops below 32 degrees Fahrenheit, the water inside the pipes starts expanding, which may cause the pipes to burst. Pipes or hoses that are located outside, in unheated areas of the house or along exterior walls without sufficient insulation are most likely to freeze and burst.

Some ways to prevent the pipes or hoses from bursting are to bring the hoses out of the cold, let the faucets slowly drip water, open cabinet doors to allow heat to get to the pipes underneath, and add insulation around pipes that are exposed to the cold temperatures. Other methods include burying them where possible.