Preventing frozen water service  

• Turn off outdoor taps – the shut-off valve is typically in the basement of your home. Once this is done, keep outdoor taps in the open position so any water remaining in the pipe in the spring can expand without causing the pipe to burst.
• Disconnect and drain all outdoor hoses and faucets. Winterize sprinkler systems, pools and spas as per the manufacturer’s guidelines. 
• Ensure areas that contain indoor water pipes are kept above 8 C, especially near the water meter.
• Insulate pipes that are near an outside wall, in crawl spaces or attics.
• Seal any air leaks that allow cold air inside.
• Keep the garage door closed as much as possible if you have water supply lines in your garage.
• Watch for frost or condensation on your pipes or a drop in your water pressure throughout the winter.  

During winter months

During the cold season, remember to shut off the main water supply to your home any time you're planning to be away for more than 24 hours. Yes, that includes weekend vacations/getaways. It's the best way to avoid serious water damage in the event of a plumbing failure.

Three signs of frozen pipes:

1.    Strange smells coming from the faucet or drain.

2.    No or very little water coming out of the pipes.

3.    Frost on pipes.

The best prevention against frozen pipes is to keep them warm enough to stay above the freezing point.