Snowbird Season Checklist: Opening and Closing Your Arizona Home

Every fall, seasonal residents return to the Valley from the Midwest, Canada, the Pacific Northwest, and everywhere in between. Every spring, as temperatures climb, many of them head home again. If you split your year this way, your Arizona house spends months sitting empty through the hottest, harshest part of the year. A little preparation on both ends goes a long way toward keeping it in good shape.

Here is a practical checklist for opening your home when you arrive and closing it properly when you leave, plus why regular check-ins while you are gone are worth considering.

Part 1: Opening Your Home in the Fall

Ideally, someone walks through the home a few days before you arrive so any surprises get handled before you pull into the driveway. Either way, here is what to check.

Pests and Scorpions

A home that has been closed up all summer is an open invitation for pests. Bark scorpions are common in many parts of the Valley, especially near desert washes and newer developments on the edge of open land. Crickets, roaches, ants, and spiders also move in when no one is around.

• Schedule a pest control treatment shortly before or right after you arrive.
• Shake out shoes, bedding, and towels that have been sitting for months.
• Check garages, closets, and under sinks for droppings or nests.
• Look at weatherstripping and door sweeps. Scorpions can squeeze through very small gaps.

Cooling and Heating

October and even early November can still be warm in Phoenix, so your AC needs to work when you get here. But winter nights can get chilly, and you will want heat too.

• Replace the air filter. It has likely been working all summer.
• Run the AC and confirm it cools properly. Listen for unusual noises.
• Switch to heat and test it before the first cold night. A slight burning smell the first time is usually just dust, but if it lingers, call a technician.
• Consider a fall tune-up, especially if the system ran hard all summer. Our guide to HVAC maintenance in Arizona covers what a good service visit includes.

Water Heater and Plumbing

• If you set the water heater to vacation mode or shut it off, turn it back on and give it time to heat.
• Run every faucet and shower for a minute or two. Flush every toilet. Drain traps can dry out over the summer and let sewer odors into the house.
• Look under sinks and around the water heater for signs of leaks or water stains.
• Check ceilings for discoloration, especially after monsoon season. Roof leaks often show up as stains before anything else.

Pool and Spa

If your pool was serviced all summer, it may just need a quick check. If it was not, expect some work.

• Check the water level. Evaporation in the summer heat can drop it quickly.
• Test and balance the chemistry before swimming.
• Inspect the pump, filter, and timer. Clean the filter if needed.
• If you have a pool heater, test it before the evenings cool off.

Safety Devices

• Test every smoke detector and carbon monoxide detector. Replace batteries while you are at it.
• Make sure exterior lights and any security system are working.

Everything Else

• Plug back in and reset clocks, routers, and irrigation controllers.
• Check the refrigerator and freezer if they were left running.
• Walk the yard. Monsoon winds can leave debris, broken branches, or damaged fencing.
• Adjust irrigation timers for cooler weather. Plants need less water in winter than in July.

Part 2: Closing Your Home in the Spring

When you leave in April or May, your home is about to face months of extreme heat and then the monsoon. Closing it properly protects it from both.

Set the Thermostat, Do Not Turn It Off

Many seasonal residents assume they can shut the AC off completely to save on power. In the Phoenix summer, that is risky. A closed-up house can get extremely hot inside, which is hard on electronics, appliances, wood furniture, cabinets, and anything stored in the home. Most owners leave the AC running at a higher setting rather than off. Talk with your HVAC technician about a setting that makes sense for your home, and consider a smart thermostat so you can monitor it remotely.

Water and Plumbing

• Decide whether to shut off the main water supply. Shutting it off reduces the risk of a leak running for weeks. But if your irrigation system or pool auto-fill needs water, you may need a different arrangement.
• Set the water heater to vacation mode or turn it off.
• Consider placing plastic wrap over toilet bowls and drains to slow evaporation from the traps.

Kitchen and Appliances

• Empty the refrigerator. Either leave it running or unplug it and prop the doors open to prevent mold.
• Remove all food from the pantry. Anything left behind attracts pests.
• Run and empty the dishwasher, and leave it slightly open.
• Unplug small appliances and electronics to protect them from power surges during monsoon storms.

Pool, Yard, and Exterior

• Arrange ongoing pool service. An unattended pool in the summer heat can turn green fast.
• Confirm irrigation is set for summer watering and working properly.
• Secure or store patio furniture, umbrellas, and anything monsoon winds could throw into a window. Our monsoon season prep guide has more on this.

Security and Paperwork

• Stop or forward mail and pause newspaper deliveries.
• Set exterior lights or a few interior lights on timers.
• Leave a key and your contact information with a trusted neighbor or home watch provider.
• Review your homeowner's insurance policy. Some policies have conditions related to homes left unoccupied for long periods. Ask your agent what applies to you.
• Let your HOA know how to reach you while you are away.

Why Home Watch Visits Matter

Even a well-prepared home can run into trouble while you are gone. The common problems in an empty Arizona house are not exotic. They are an AC unit that quits in July, a slow leak under a sink, a monsoon storm that lifts some roof tiles, an irrigation line that breaks and floods a flower bed, or a pest problem that gets started and grows for months.

The issue is time. A small leak caught in a week is a minor repair. The same leak discovered in October, after months of hidden damage, can mean mold, ruined flooring, and a much larger bill. An AC failure caught quickly is a service call. Caught months later, it can mean damaged belongings and a home that needs serious attention before you can move back in.

A home watch service sends someone to physically walk through your house on a regular schedule. A typical visit includes checking for leaks and water stains, confirming the AC is running and the indoor temperature is reasonable, running water to keep traps full, looking for pests, checking the exterior after storms, and reporting back to you. If something is wrong, it gets handled before it turns into something bigger.

Home watch also helps on the arrival end. Someone can open the house a few days before you return, turn the water and water heater back on, set the thermostat, and make sure everything is ready.

How Columbia Properties Can Help

Columbia Properties offers home watching services for seasonal residents across the Phoenix area. We visit on a regular schedule, check the things that tend to go wrong in empty desert homes, report back after each visit, and coordinate repairs with trusted vendors when something needs attention. If you are thinking about renting your Arizona home while you are away instead of leaving it empty, we also offer full-service property management and can walk you through what that would look like for your property.