Winterizing a Sunriver or Bend Vacation Rental: A Plumbing Checklist

An empty vacation rental during a Central Oregon cold snap is a burst pipe waiting to happen. Nobody's running water, nobody notices the draft in the crawl space, and nobody's home when a line freezes at 2 a.m. and splits. By the time the next guest arrives — or the cleaner shows up — the damage is done and still running.

The good news: freeze damage is almost entirely preventable. Here's the checklist we use to winterize short-term rentals across Sunriver, Bend, and the resort communities, whether the place sits empty for the season or turns over between guests all winter.

First, decide which kind of winter this is

There are two very different plans, and picking the wrong one causes most of the trouble:

• Occupied through winter (heated and used): The home stays warm and the water stays on. Your job is to protect the vulnerable spots and catch problems fast.
• Closed for the season (empty and unheated): The safest move is to fully drain the system so there's no water left to freeze. This is the belt-and-suspenders approach for a home nobody is watching.

Match your checklist to your situation. Half-measures — heat off but water still sitting in the pipes — are how homes flood.

The winterizing checklist

Whether you close it down or keep it running, start here:

1. Find and label the main shut-off valve. Every cleaner, guest, and property manager should be able to kill the water in seconds. Tag it. It's the single most valuable thing in the house during a freeze.

   

2. Keep the heat on — never fully off. For a home that stays in service, hold the thermostat at a steady minimum (55°F is a common floor) even when it's empty. Heating a house is far cheaper than repairing a flood.

   

3. Insulate the pipes that freeze first. Lines in crawl spaces, garages, and along exterior walls are the usual casualties. Foam pipe insulation costs just a few dollars per section and is some of the best money you'll ever spend. Do it before mid-October.

   

4. Disconnect and drain outdoor hoses and spigots. A hose left on a bib traps water that freezes back into the wall. Pull the hoses, drain the bibs, and use insulated covers.

   

5. Open cabinet doors under sinks. On exterior walls, this lets household heat reach the pipes. Simple and free.

   

6. Leave a faucet at a trickle in a hard freeze. Moving water resists freezing. For an occupied home during an extreme cold snap, a slow drip on the most vulnerable fixture buys real protection.

   

7. Install freeze and leak alarms. A cellular temperature alarm texts you when the house drops too cold; a smart water monitor or leak sensors catch a problem the moment it starts. For a home you can't eyeball daily, this is essential, not optional.

   

8. Line up a local plumber before you need one. Program the number in now. At 2 a.m. on New Year's, you want someone who already knows the property.

   

If you're closing the house for the season

An unheated, empty home needs more than insulation — it needs the water gone. A proper drain-down is worth having done right:

• Shut off the main and, for well systems, the pump.
• Drain the water heater and all supply lines from the lowest points.
• Blow the lines out with compressed air so nothing's left hiding in a low spot.
• Empty toilet tanks and bowls, and pour non-toxic RV or plumbing antifreeze into every trap, toilet, and floor drain so the traps don't freeze and crack.
• Don't forget the icemaker line, the dishwasher, and any outdoor kitchen or hot tub plumbing.

This is fiddly, and missing one trap or one low line undoes the whole effort. It's the part most owners hand to us — our pipe winterization crew drains a home down so there's simply nothing left to freeze.

Build it into your turnover routine

For rentals that stay booked through ski season, freeze protection has to survive guest turnover:

• Add "heat set to minimum, no lower" to your cleaner's checklist so the thermostat never gets left off after a departure.
• Check that guests haven't closed heat vents or left a window cracked in a back bedroom.
• After a hard freeze with the home empty, do a quick walk-through — or have your manager do one — before the next check-in.

Managing several doors? Our commercial and vacation-rental plumbing service handles seasonal winterization and fast between-guest turnarounds, so a plumbing hiccup never costs you a booking or a bad review.

The Central Oregon angle

Elevation makes this real. The resort communities sit high and cold — Sunriver and Black Butte Ranch both see nights well below freezing for months, and many of these houses sit empty midweek even in peak season. That combination — high, cold, and unoccupied — is exactly the recipe for a quiet freeze that no one catches until it's a flood. A little prep in October saves a ruined January.

If the worst happens anyway, don't wait it out. Our guide on preventing frozen pipes covers the season ahead, and what to do when a pipe bursts walks you through the first frantic minutes.

Key takeaways

• Decide up front: heated-and-used, or drained-and-closed. Don't leave a home half-winterized.
• Label the main shut-off, hold a minimum heat, and insulate crawl-space, garage, and exterior-wall pipes before mid-October.
• Freeze and leak alarms are the difference between a text alert and a flooded great room.
• A full drain-down for a closed home is worth having done professionally — one missed trap undoes it all.

Frequently Asked Questions

What temperature should I leave the heat at in a vacation rental?

For a home that stays in service through winter, hold the thermostat at a steady minimum — 55°F is the common floor we recommend, and never let it drop below that even when the place sits empty. The goal isn't comfort, it's keeping the pipes inside the walls and crawl space above freezing. Heating an empty house costs far less than drying out a flooded one.

Should I fully drain the plumbing in an empty home?

If the house is closed for the season and unheated, yes — draining the system is the only way to be truly safe, because there's no water left to freeze. But it's fiddly: miss one trap or one low line and the whole effort can undo itself. For a home that stays heated and in use, a proper minimum temperature and good insulation are enough.

Do smart water and freeze sensors really help?

They're one of the smartest things you can add to a property nobody watches daily. A cellular freeze alarm texts you the moment the house drops too cold, and a leak sensor catches a burst the second it starts — turning what could be a weeks-long flood into a same-night phone call. For a remote rental, that early warning is worth far more than it costs.

Protect the booking before the freeze does

A frozen pipe doesn't just cost repairs — it costs cancellations, refunds, and reviews you can't take back. An afternoon of winterizing now is the cheapest insurance your rental will ever get.

Want it handled by someone who knows these homes? Call (207) 419-2600 or reach us through our contact page, and we'll winterize your rental — or come running if a pipe has already let go. If it's an emergency, our burst and frozen pipe repair team answers 24/7, with no after-hours surcharge.