Winterizing a Rental in the Black Hills: The Owner's October Checklist

In half of past years, Rapid City has already seen its first 32-degree night by September 26, according to the National Weather Service, and in nine years out of ten it arrives by October 12. If your rental isn't ready for winter yet, the clock is already running.

The expensive winter calls, like the burst pipe, the dead furnace on a below-zero night, or the ice dam leaking into a bedroom, almost never come out of nowhere. They start as small October jobs that got skipped. Here's the checklist we work through before the snow flies.

Outside: Get the Water Out Before It Freezes

Hoses off, spigots shut down. A garden hose left connected to an outdoor spigot traps water that can freeze and split the pipe inside the wall. The American Red Cross recommends removing, draining, and storing hoses and closing the inside valves that supply outdoor hose bibs. This is a five-minute job that prevents a very wet surprise in January.

Blow out the sprinkler system. If the property has irrigation, it needs to be blown out before a hard freeze. The NWS puts Rapid City's typical first hard freeze (28 degrees) around October 9. Don't wait for the first snow to remember the sprinklers.

Gutters and downspouts. Clear the leaves and make sure the downspout extensions are actually routing water away from the foundation. We've written before about the maintenance items everyone forgets, and gutters are near the top of that list. Clogged gutters in October become ice dams in December.

Walkways, steps, and railings. Fix the cracked step and the loose railing now. Once they're covered in ice, they turn into a liability instead of a repair.

Inside: Heat, Air, and the Detectors That Save Lives

Service the furnace before it's needed. A furnace that limped through last spring is going to get tested on the first cold snap. An annual service catches the worn part while it's still a scheduled repair and not an emergency. Furnaces can also fail quietly. We've written about the CO detector that probably saved a tenant's life when a faulty furnace was leaking carbon monoxide.

Change the filter. It's the cheapest winter maintenance there is. A clogged filter makes the furnace work harder and fail sooner, and a new one costs a few dollars. Make sure tenants know it's on their list and how often.

Test every smoke and CO detector. Heating season is the right time to check them, not after. Our own standard is a smoke detector in every bedroom and the living room, and a CO detector on every floor, finished or unfinished, even in all-electric units. Everything gets replaced by the manufacturer's expiration date. One more tip: install them a reasonable distance away from the kitchen. A detector that goes off every time someone makes toast is a detector that ends up in a drawer. We've bought almost 500 smoke detectors this year alone, and every one of them was worth it.

Seal the drafts. Failed caulk and worn weatherstripping around windows and doors drive up heating bills and let in moisture. If tenants pay the heat, it also shapes how they feel about the home all winter long.

Vacant Units Are the Biggest Winter Risk

An occupied home has someone living in it who notices when something goes wrong. A vacant one doesn't. That makes a vacant unit the most likely place for a frozen pipe to go unnoticed for days.

Keep the heat on. The Red Cross recommends never setting the thermostat below 55°F when a home is left during cold weather. The heating bill on an empty unit stings, but it's nothing compared to a flooded one.

Confirm the utilities are actually on, and in someone's name. Gas service that quietly lapses between tenants is a frozen-pipe claim waiting to happen. Don't assume the transfer happened. Verify it.

Walk it regularly. Check the thermostat, look under the sinks, and flush the toilets. Every day a vacant unit sits in winter is a day of risk, which is one more reason pricing to rent quickly matters even more once the weather turns.

Put the Tenant's Part in Writing

Some winter responsibilities belong to the tenant. If they aren't spelled out clearly, they usually end up being nobody's responsibility.

Before the first storm, make sure tenants know who changes the furnace filter and how often, who clears the sidewalk and driveway, what temperature the heat has to stay at (including when they travel for the holidays), where the water shutoff is, and exactly how to report a problem after hours. A tenant who knows that a steady drip under the sink needs a maintenance request, today, is worth more than any insurance policy.

Why This Matters

None of this is complicated or expensive. Most of the checklist is a few hours of work and a few hundred dollars in parts and service. Skipping it is how owners end up paying for a burst pipe, water damage, a furnace replacement, and a displaced tenant all at once, usually in the coldest week of the year.

In the Black Hills, winter isn't a surprise. It shows up on schedule every year. The only question is whether your rental is ready for it.

Is your rental actually ready for a Black Hills winter?

A few hours of prevention in October beats an emergency call in January every single time. Let's talk. Blair Allen Property Management serves owners across South Dakota and Montana.

Chris Twiggs
President, Blair Allen Property Management
📞 605-545-1218
✉️ chris@blairallen.com