September is the quiet month. The aspens have not turned, the pass is open, and the house feels like it can wait. It cannot. Winter reaches a mountain home in a set order, and the homes that come through cleanly are the ones where somebody worked that order before the first storm.
Here is the order.
1. Water
Anything that holds water and sits outside a heated wall will freeze first. Irrigation lines, hose bibs, the guest house if it runs cold, the pool house, an outdoor kitchen. Shut off, drain, and blow out what can be blown out. A line that freezes in October usually shows itself in April as a wet ceiling.
2. Roof
Gutters cleared before the leaves finish falling, not after. Flashing checked where the roof meets a wall or a chimney. Heat cable tested with the breaker on, because a dead run of cable is invisible until the first melt-and-freeze builds an ice dam over it. If the roof is cedar shake and more than twenty years old, this is also the season to talk about what replaces it, since fire code has moved on.
3. Ground
Limbs that reach over the roofline come off now. The last of the summer brush is cleared from the defensible space around the house and the outbuildings. Firewood moves away from the walls. None of this is glamorous. All of it matters more at 8,000 feet than it does anywhere else you own a home.
4. Air
Heat on a schedule, not off. Humidity set so the millwork does not crack in January. A walk-through on the calendar every week or two, so a small leak stays a small leak. An empty house in winter fails quietly; the only defense is somebody opening the door on a schedule.
5. Driveway
A snow plan with a name on it. Driveway markers in before the ground freezes. Plow height set so the pavers survive. The gate tested in the cold, because a gate that works in September and not in December is a common call.
6. Arrival
The day you land, the house should be warm, stocked, and ready, and the day you leave it should be closed down properly. That is the whole point of everything above: you arrive to a home, not to a list.
If you would rather hand the list to someone, that is what Property Management is for. One call covers all six.