If you’re unsure how to prevent frozen pipes in your home, there are a few factors to monitor that can increase the likelihood of freezing. Watch out for these warning signs and take steps to mitigate them. 
Poor insulation and exposed pipes
Areas of the home with less insulation, like basements and attics, are more vulnerable to frozen water pipes. Often, pipes in these areas are also exposed, making them even more susceptible to damage. Water pipes located within the exterior walls of a house (like laundry rooms or garages) are also closer to cold temperatures outside and may freeze. 
Consider adding insulation to these areas or investing in heat tape or pipe sleeves to cover exposed pipes. Metal pipes, usually found in older homes, are also more likely to freeze than PVC water pipes.
Exterior water connections
Another common factor contributing to frozen water pipes is the improper handling of exterior connections. Hose bibs, pool supply lines, and sprinklers can all harbor freezing water. As the seasons change, it’s important to drain these exterior lines, disconnect hoses, and leave outdoor valves open to allow any sitting water to escape. 
Be sure to follow manufacturer recommendations and be aware of your city’s water guidelines. Some cities shut off exterior water on a scheduled date each year. 
Extreme cold
If your region experiences extreme or unusually cold temperatures, you should always ensure that your pipes are maintained. During cold snaps, consider wrapping basement or crawl space water pipes in insulating materials. 
It’s also important to keep your home heated at all times during the winter, especially if you plan on traveling. Turning the thermostat down to save money at night or while you’re away, might seem like a good idea, but it will end up costing you more to repair the damage from frozen water pipes. Anything lower than 55 degrees Fahrenheit puts your home in the danger zone.