How Do I Prevent Water Damage When I Go on Vacation?
Last updated October 25, 2026
The short answer
Shut off Your Main Water Supply
Turning off the main water shutoff valve is the most effective step you can take before a trip. This valve controls all water entering your home from the municipal supply or well. If a pipe bursts or a fitting fails while you are away, no new water can flow into the house. This single action can prevent thousands of gallons from flooding your floors and walls.
Locate this valve, which is often found where the main water line enters your home, such as in the basement, crawlspace, or near the water heater. Ensure you know how to operate it, as some valves require a special wrench. If you live in Germantown, keep your shutoff valve location written down in an accessible place for anyone checking on your home.
Drain Your Pipes and Appliances
After shutting off the main valve, open faucets at the highest and lowest points in your home to drain the remaining water from the pipes. Start with an upstairs sink and finish at an outdoor spigot or basement faucet. This relieves pressure in the system and reduces the chance of a small drip turning into a problem over several days.
Remember to drain your water heater according to the manufacturer's instructions to prevent sediment buildup and potential failure. For appliances like washing machines and dishwashers, disconnect the supply hoses and check them for cracks or bulges. Empty any ice makers and turn off the supply line to your refrigerator to prevent a slow leak from the connection.
Inspect and Maintain Key Areas
A thorough inspection of your home's plumbing and exterior can reveal vulnerabilities. Check under sinks for any signs of moisture or corrosion on pipes and connections. Examine your water heater for rust or moisture at its base, which could indicate a slow leak. Look at toilet tanks and bowls for cracks and ensure the fill valve shuts off properly after a flush.
Outside, ensure your gutters and downspouts are clear of debris so rainwater is directed away from your foundation. Check your roof for missing or damaged shingles that could allow water intrusion during a storm. Seal any cracks in your home's exterior foundation or siding with appropriate caulk to keep driven rain from entering.
- Check all supply lines to toilets, sinks, and appliances for wear.
- Inspect the seal and condition of your washing machine drain hose.
- Clear debris from window wells to prevent basement window leaks.
- Ensure your sump pump, if you have one, is operational with a clear discharge line.
- Trim tree branches that could fall on your roof or siding during a storm.
- Verify that your HVAC condensate drain line is clear and flowing freely.
Arrange for a House Sitter
Having a trusted neighbor, friend, or relative check on your home every few days provides a critical safety net. They can spot early signs of trouble, like a puddle under the water heater or a musty smell, before it becomes a major issue. Provide them with your contact information and instructions for accessing the main shutoff valve in case of an emergency.
Ask them to walk through the main living areas and basement, if accessible, to listen for the sound of running water and look for visible moisture. They should also check for mail and packages to maintain a lived-in appearance. This regular presence can deter burglaries and give you peace of mind while you are relaxing far from home.
What to Do If You Find Damage
Returning to water damage requires immediate action to limit further harm. Your first step is to stop the source if water is still flowing, using the main shutoff valve. Then, contact local water damage pros for a thorough assessment. They have the expertise and equipment to properly dry your home and prevent secondary issues like mold growth, which can start within 24 to 48 hours.
Document the damage with photos and videos before moving or cleaning anything, as this helps with any potential insurance claim. Move undamaged items to a dry area and remove standing water if it is safe to do so. Policies vary, and your insurer decides what is covered. A water damage assessment can identify all affected materials and create a plan for necessary cleanup and repair.
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Call Now (240) 261-5117Frequently asked questions
Should I leave my water heater on while on vacation?
For short trips, you can leave it on but set it to the 'vacation' or lowest setting to save energy. For longer absences, consult the manufacturer's manual. Many recommend turning it off and draining it to prevent pressure buildup and sediment issues, which can lead to leaks or failure.
What if I cannot shut off my main water valve?
If the valve is stuck or you cannot locate it, consider having a plumber inspect and repair it before your trip. As a temporary measure, you can shut off individual valves under sinks and behind toilets, and disconnect appliance hoses. This is less comprehensive but better than doing nothing.
Does humidity matter when I am away?
Yes, in a humid subtropical climate with hot humid summers, indoor humidity can promote mold growth. Before leaving, set your thermostat to a moderate temperature, around 78 degrees Fahrenheit, to help control humidity. Using a dehumidifier in the basement on a timer can also help keep the air drier.
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