How to Prepare Your Plumbing System for Winter While You’re on Vacation
Leaving home for a winter vacation should feel relaxing, not risky. However, freezing temperatures can put your plumbing system under serious stress while you are away. A burst pipe, flooded basement, or failed water heater can cause costly damage before anyone notices. By taking a few smart precautions before you leave, you can protect your home, conserve water, and enjoy your trip with greater peace of mind.
Inspect Your Plumbing Before You Leave
Start with a quick but thorough inspection of visible plumbing areas. Look under sinks, around toilets, near the water heater, in the basement, and around appliances such as washing machines and dishwashers. Check for dripping faucets, moisture on pipes, rust, corrosion, or stains on walls and ceilings. Even a small leak can become a major problem if temperatures drop or water pressure changes while you are away.
If you notice signs of a leak, schedule plumbing repairs before your vacation. Winter is not the time to ignore minor plumbing issues. Cold weather can make existing weaknesses worse, especially in older pipes or poorly insulated areas.
Turn Off the Main Water Supply
One of the most effective ways to prevent water damage while on vacation is to shut off the main water supply. If a pipe bursts or a fixture fails, turning off the main valve can greatly reduce the amount of water released into your home. After shutting off the valve, open a faucet on the lowest level of your home to relieve pressure and drain remaining water from the lines.
If you have appliances that require water while you are gone, such as a boiler, humidifier, or certain heating systems, consult a licensed plumber before shutting off the main supply. In some homes, completely turning off the water may not be appropriate without additional steps.
Keep Your Home Warm Enough
It may be tempting to lower the thermostat significantly to save energy during your trip, but setting it too low can put your pipes at risk. Keep your thermostat set to at least 55°F to help prevent freezing pipes. If your home has plumbing in exterior walls, crawl spaces, garages, or unheated areas, consider keeping the temperature slightly higher during severe cold snaps.
Also, replace thermostat batteries before leaving if needed. A dead thermostat can shut down your heating system unexpectedly, leaving your plumbing vulnerable to freezing temperatures.
Insulate Exposed Pipes
Pipes located in unheated or drafty areas are most likely to freeze. Before your vacation, insulate exposed pipes in basements, attics, crawl spaces, garages, and under kitchen or bathroom cabinets on exterior walls. Foam pipe insulation, heat tape, or pipe sleeves can provide an extra layer of protection against freezing.
Pay special attention to areas where cold air enters the home. Seal gaps around vents, windows, doors, and foundation openings. Even a small draft can cause a nearby pipe to freeze when outdoor temperatures fall below freezing for an extended period.
Open Cabinet Doors Under Sinks
Before you leave, open cabinet doors beneath sinks, especially those located on exterior walls. This allows warm air from your home to circulate around the pipes. It is a simple step, but it can make a meaningful difference during extreme cold.
If you have children or pets in the home before departure, be sure to remove cleaning products or chemicals from the opened cabinets and store them safely.
Drain Outdoor Faucets and Hoses
Outdoor plumbing is especially vulnerable in winter. Disconnect garden hoses from exterior faucets, drain them, and store them indoors if possible. A connected hose can trap water in the faucet, increasing the risk of freezing and bursting.
If your home has shut-off valves for outdoor faucets, turn them off and open the exterior spigots to drain any remaining water. Installing insulated faucet covers can also help protect outdoor fixtures from freezing temperatures.
Consider Letting Faucets Drip in Extreme Cold
If you choose not to shut off the main water supply, allowing a small trickle of water from faucets connected to vulnerable pipes can help prevent freezing. Moving water is less likely to freeze than standing water. This method is most useful during periods of extreme cold, especially for pipes located along exterior walls.
However, dripping faucets can increase water usage and may not be necessary if you have properly insulated your plumbing and turned off the main water supply. Choose the option that best fits your home’s plumbing system and weather forecast.
Set Your Water Heater Properly
If you will be away for several days or weeks, adjust your water heater to vacation mode if it has that setting. This helps save energy while keeping the system protected. If your water heater does not have a vacation setting, you may lower the temperature slightly, but avoid turning it off completely unless recommended by a professional.
For gas water heaters, make sure you understand the manufacturer’s instructions before making changes. If you are unsure, contact a plumber or HVAC technician for guidance.
Ask Someone to Check Your Home
Having a trusted neighbor, friend, or family member check your home during your vacation can help catch problems early. Ask them to look for signs of leaks, verify that the heat is working, and listen for unusual plumbing noises. Provide them with your contact information and show them where the main water shut-off valve is located.
For extra protection, consider installing smart water leak detectors near water heaters, washing machines, sump pumps, and under sinks. Some devices send alerts directly to your phone if moisture is detected or temperatures drop too low.
Prepare Your Sump Pump and Drains
If your home has a sump pump, test it before leaving. Pour water into the sump pit to make sure the pump turns on and drains properly. A failed sump pump can lead to basement flooding, especially during winter thaws or heavy rain.
Clear slow drains and remove debris from floor drains before your trip. Plumbing problems are easier to fix before you leave than after returning to water damage.
Protect Your Home Before You Travel
Winter vacation planning should include more than packing bags and booking flights. Preparing your plumbing system before you leave can prevent frozen pipes, leaks, and expensive repairs. By shutting off water when appropriate, maintaining indoor heat, insulating exposed pipes, draining outdoor fixtures, and arranging for home checks, you can reduce risk and travel with confidence.
A little preparation now can save you from major plumbing emergencies later. If your home has older pipes, frequent freezing issues, or plumbing in unheated spaces, consider scheduling a professional plumbing inspection before your winter trip.