Every mountain host knows the first snow is coming. Fewer think about what happens on the Tuesday night after it, when the guests checked out Sunday, the next ones don’t arrive until Friday, and it drops to 8 degrees in Conifer with nobody in the house.
That’s the setup for the most expensive phone call a short-term rental owner in the foothills can get: “There’s water coming out from under the front door.”
Frozen pipes aren’t a dramatic, once-a-decade disaster up here. They’re a predictable winter risk, and the way most Airbnbs and VRBOs along the 285 corridor are used (empty for days at a time, thermostats set by strangers, older plumbing running through crawl spaces and well houses) makes them more exposed than a full-time home down in Lakewood.
What a burst pipe actually costs
State Farm handled more than 20,000 frozen-pipe claims from 2024 through mid-2025 and paid out over $628 million. The average claim was more than $30,000. State Farm also notes that a small crack can leak more than 250 gallons of water a day.
Now picture that crack in an empty rental. Nobody hears it. Nobody shuts off the main. By the time a guest or a cleaner opens the door, the water has had days, not hours. Flooring, drywall, subfloor, furniture, the bedding you just bought. Then there’s the part insurance doesn’t fix: every booking you cancel while the house dries out and gets rebuilt, right in the middle of ski season.
The insurance surprise most hosts don’t know about
Here’s where it gets uncomfortable. The Colorado Division of Insurance says burst pipes and the water damage they cause are generally covered by homeowners policies. The key word is generally.
Many property policies exclude freeze damage unless the owner used reasonable care to either keep the heat on or shut off the water and drain the system. Some apply that condition only when the property is vacant or unoccupied. Some apply it no matter what. And “vacant” and “unoccupied” are often defined differently from each other, which matters a lot for a house that sits empty between guests.
Some policies spell out a minimum temperature, commonly 55°F, that has to be maintained even when nobody’s home. If a guest cranks the thermostat down to 50 on their way out to “save you money,” and the pipes freeze that week, you may find yourself arguing with an adjuster about whether you maintained heat.
The fix is simple: pull out your policy and search it for the words “freezing,” “vacant,” and “unoccupied.” If you rent short-term, call your agent and ask directly how a property that’s empty three or four days a week is treated. You want that answer in October, not after the claim.
Why mountain rentals are more exposed
Researchers at the University of Illinois Building Research Council found that uninsulated pipes in unheated spaces start freezing once it’s around 20°F outside. In the foothills, 20 degrees isn’t a cold snap. It’s a normal January night, and plenty of fall and spring nights too.
Add the things that are just part of owning up here:
- Crawl spaces and well houses. A lot of older cabins in Bailey, Pine and Evergreen run water lines through spaces that were never meant to be heated. Heat tape helps until it fails, and nobody notices it failed until something freezes.
- Exterior walls and under-sink cabinets. Kitchen and bathroom lines on outside walls are the classic freeze points, especially when the cabinet doors stay shut and the house is set low.
- Power outages. Wind and heavy snow knock power out in the mountains regularly. If the furnace needs electricity to run (most do) and the outage lasts overnight in an empty house, the thermostat setting doesn’t matter.
- Snow-blocked furnace vents. High-efficiency furnaces vent out the side of the house. When drifting snow covers the intake or exhaust, many shut themselves off. That’s a carbon monoxide safety feature, and it also means no heat.
- Hot tubs. A hot tub that loses power for long enough in deep cold can freeze, crack its plumbing, and turn into a repair bill and a refund request at the same time.
- Guests who don’t know. Visitors from warmer places leave windows cracked for the wood stove, turn the heat way down at checkout, or leave a hose connected. They aren’t being careless. They’ve just never lived somewhere pipes freeze.
What to do before the hard freezes settle in
1. Set a floor on the thermostat, and lock it
Keep the house at 55°F or above when it’s empty, and check whether your policy names a specific number. A smart thermostat that lets you set limits guests can’t override, and that alerts you when the temperature drops, is one of the cheapest insurance policies you can buy for a mountain rental. Add a checkout instruction that says plainly: “Please don’t turn the heat below 60. It protects the pipes.”
2. Put a temperature sensor where the pipes are
The thermostat measures the living room. Your pipes are in the crawl space. A wireless temperature and leak sensor placed in the well house, crawl space, or under the kitchen sink will text you hours before a freeze becomes a flood.
3. Disconnect hoses and shut off outdoor spigots
Disconnect every garden hose and drain the outdoor lines. A hose left connected traps water in the spigot, and that’s one of the most common freeze points on any house.
4. Check heat tape and insulation now
Plug it in, confirm it warms up, and look for gaps in pipe insulation. Do it on a sunny October afternoon instead of a 5°F night with a flashlight.
5. Make sure someone knows where the main shutoff is
If a pipe does go, the difference between a $3,000 repair and a $30,000 claim is often how fast someone can shut off the water. Your cleaner, your property manager, and your plow guy should all know where it is. Put it in your house manual with a photo.
6. Have a plan for long gaps and outages
If the house will sit empty for a week or more in January, decide ahead of time who checks on it and how often. If you have a backup heat source or a generator, make sure someone local knows how to use it. If you’re going to shut the water off and drain the system instead, talk to a plumber first, especially if the house has a fire sprinkler system.
7. Keep the vents clear
After every real snowfall, someone needs to clear the furnace intake and exhaust, the dryer vent, and any other side-wall vents. That protects the heat and protects your guests from carbon monoxide.
Your turnover crew is your early warning system
Between guests, your cleaners are often the only people inside the house. They’re the ones who’ll notice the thermostat set at 52, a cabinet that smells damp, a faint drip under the bathroom sink, or a hot tub that’s colder than it should be.
At Mountain Marvel, our crews clean short-term rentals from Conifer to Bailey all winter long. If you’d like a freeze check added to your property’s turnover checklist (thermostat, under-sink cabinets, visible pipes, hot tub temperature), reach out and we’ll set it up so you hear about a problem while it’s still small.
The first hard freezes are already showing up along the 285 corridor. A little prep this month keeps your bookings, and your floors, intact all winter.
Sources: State Farm newsroom, “Frozen pipes not so nice” (claims data 2024 through June 2025); Colorado Division of Insurance consumer advisory on burst pipe claims; University of Illinois Building Research Council freeze research as summarized by industry sources. This post is general information, not insurance or legal advice. Check your own policy and talk to your agent about your specific property.
Leave a Reply