During extremely cold weather, there are a number of steps you can take to protect your water pipes from costly damage during freezing conditions.

1. Insulate all accessible pipes using pipe insulation (this can be found at your local hardware store).
   
   
2. Keep all exterior entry, exit and overhead doors to unheated spaces closed as much as possible during the winter months.
   
   
3. Ensure that all cracks, holes, and other openings on the exterior walls are sealed tightly with caulk or insulation to prevent cold air from penetrating the wall cavity.
   
   
4. If you have rest rooms, kitchens, or service rooms with water sources located on exterior walls, it is likely that the plumbing for these systems is located inside the exterior walls. Or, if you have piping coming up through the floor over an unheated room or unheated crawlspace under your building, it is likely there is plumbing exposed to freezing weather.
   
   
5. During extremely cold weather let all faucets drip to prevent freezing of the water inside the pipe and if freezing does occur, to relieve pressure buildup in the pipes between the ice blockage and the faucet. The pressure buildup is the actual cause of bursting pipes. Using cold water will save on your electricity or gas bill.

If you experience a burst pipe, first turn off the water supply to your house (the shut-off valve is usually next to your water meter).

After you have turned off the water, call your preferred plumber immediately.