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How to Protect a Vacation Home From Water Damage While Away

Last updated October 25, 2026

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The short answer

Shut off the Main Water Supply

The single most effective step is turning off the water at the main shutoff valve before you leave. This stops leaks from supply lines, toilets, and appliances from becoming floods. Know where the valve is and test it once a year so it turns easily. Write the location down and keep it near the utility room.

After shutting off the main valve, open every faucet in the home to drain water from the pipes. This reduces pressure and lowers the chance of a burst pipe from freezing. Flush toilets to empty the tanks. Leave faucets open slightly to allow any remaining water to expand without cracking pipes.

Install Water Leak Sensors

Water leak sensors are small battery-powered devices that sound an alarm when they touch water. Place them near the water heater, under sinks, behind the washing machine, and in the crawlspace. Some models send alerts to your phone, so you can know about a leak even from far away. Check the batteries before you leave.

Sensors do not stop water, but they give you time to act. If you get an alert, you can ask a neighbor or a local water damage pro to check the property. This early warning can mean the difference between a small cleanup and major repairs. Write down the sensor locations in your maintenance notes.

  • Place sensors on the floor, not on shelves
  • Test each sensor before you leave
  • Use sensors with loud alarms for unmonitored homes
  • Replace batteries every six months
  • Add sensors in the attic near roof valleys

Keep the Heat on in Winter

In a humid continental climate with cold snowy winters, a vacation home can easily freeze if the heat goes out. Set the thermostat to at least 55 degrees Fahrenheit while you are away. This keeps pipes from freezing without wasting too much energy. Open cabinet doors under sinks so warm air reaches the pipes.

If the home is in a very cold area, consider draining the entire plumbing system and adding antifreeze to drains. This is a bigger job, but it protects the pipes completely. Ask a local plumber about winterizing options if you are unsure. Never turn the heat completely off during freezing months.

Protect Roofs and Gutters

Ice dams form when snow melts on a warm roof and refreezes at the eaves. They can force water under shingles and into the attic. Keep gutters clear of leaves and debris before winter. Install a roof rake or heating cable to prevent ice buildup. Check for loose or missing shingles each season.

Inside the attic, look for signs of past leaks like stains on rafters or insulation. Fix any small issues before they become big ones. A quick inspection each visit can save you from expensive drywall and ceiling repairs later. If you find water stains, local water damage pros can dry and repair the affected wood and drywall.

Ask Someone to Check the Home

A trusted neighbor or friend can spot problems early. Ask them to walk through the home once a week, especially after heavy storms or snow. They can check for leaks, listen for running water, and clear snow from vents. Leave them a key and a list of where the shutoff valve is located.

If a leak happens, the person can shut off the water and call a local water damage pro for help. This quick action limits damage to floors, walls, and belongings. Make sure they know your contact information and what to do in an emergency. A simple check-in can prevent a small drip from becoming a major restoration project.

  • Leave a key with a trusted neighbor
  • Give clear instructions on the shutoff valve
  • Ask them to check after storms
  • Provide a list of emergency contacts
  • Check on the home yourself every few months

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Frequently asked questions

Should I turn off the water heater before leaving?

Yes, if you shut off the main water supply, also turn off the water heater to prevent it from overheating. Set it to vacation mode if available. This reduces energy use and avoids pressure buildup in the tank.

What temperature should I keep the heat at?

Set the thermostat to at least 55 degrees Fahrenheit. This prevents pipes from freezing while keeping energy costs low. If the home is in a very cold climate, consider draining the pipes instead.

How often should I inspect the home while away?

At least once a month, and more often during winter or heavy rain. A neighbor can do a quick walkthrough weekly. Look for water stains, musty smells, or sounds of running water.

Call Now (952) 522-6744