Get Your Home Ready for Summer: A 12-Step Checklist (2026)

Updated November 2026. A 12-step checklist to get your home ready for summer, with ENERGY STAR and UC Berkeley figures read October 27, 2026.

To get your home ready for summer, start with four jobs in spring: service the air conditioner, seal doors and windows, set ceiling fans to spin counterclockwise, and program a smart thermostat. The payoff is real. As of October 2026, ENERGY STAR says heating and cooling make up almost half of a typical home’s energy bill, more than $900 a year, and sealing leaks can save up to 10%.

Jump to: ✅ 12-step checklist · 🏠 Air conditioning · 🪜 Doors and windows · ⏱️ Ceiling fans · 💲 Thermostat · 🤝 Selling in summer · ❓ FAQ

Summer heat is hard on a house as well as on the people in it. An AC that fails in July costs more to fix, and a home that leaks cool air costs more every month. Here’s the order we’d tackle it in.

How do you prepare your home for summer? A 12-step checklist

Short on time? Steps 1, 2, 5 and 8 do the most for comfort and the power bill. Listing the house this summer? The same steps help it show well; there’s more on that below.

How do you get your air conditioning ready for summer?

Book a check-up in spring. ENERGY STAR’s maintenance checklist suggests checking the cooling system in spring and heating in fall, because contractors fill up once the season starts. If your unit is already struggling, schedule a visit for air conditioning repairs now. Local firms like Progressive Heating & Air handle tune-ups and repairs before the rush.

What a pro should check

ENERGY STAR lists the main items. The technician should clean the coils, check the refrigerant level and adjust it if needed, and clean and adjust the blower parts. Too much or too little refrigerant makes the system less efficient and can shorten its life. If the level is low, there’s usually a leak to fix, so ask about that rather than a simple top-off.

What you can do yourself

• Inspect, clean or change the air filter once a month during heavy use.
• Clear leaves, grass and debris from around the outdoor unit.
• Make sure supply vents and returns aren’t blocked by furniture or rugs.
• Run the system for a few minutes on the first warm day, so you find problems early.

How do you keep cool air in and hot air out?

Heat moves three ways: radiation, conduction and convection. Northwestern University’s plain-English page on how heat moves explains each one. In a house, the sun radiates through windows, warm walls conduct heat inside, and leaky gaps let hot air flow in.

ENERGY STAR’s seal and insulate guide says sealing air leaks and adding insulation can save up to 10% on annual energy bills. Simple fixes include weatherstripping doors and caulking around windows. Bigger jobs include sealing the attic and adding insulation.

• Close blinds and curtains on sunny windows during the hottest hours.
• Add reflective window film on west- and south-facing glass.
• Check door sweeps and replace worn weatherstripping.
• Look for gaps where pipes and wires enter the house.

If you’d rather not do it yourself, an energy auditor or handyman can find leaks quickly, often with a blower door test. Planning bigger work, like new windows? Our home renovation checklist helps you plan it.

Which way should a ceiling fan spin in summer?

Counterclockwise, looking up at it. That pushes air down and creates a cooling breeze. Fan maker Hunter’s guide to fan direction gives the same rule: counterclockwise in summer for a downdraft, clockwise on low in winter. Most fans have a small switch on the motor housing; check your manual.

Fans cool people, not rooms, so turn them off when you leave. Used well, they let you run the AC less. UC Berkeley’s Center for the Built Environment found that new fans using one to eight watts can offset a 6°F increase in indoor temperature. When shopping, look for the ENERGY STAR label: ENERGY STAR says certified ceiling fans are up to 44% more efficient than conventional fans.

How should you set a smart thermostat for summer?

The Berkeley study paired a ceiling fan with a smart thermostat in real buildings. Across the field sites, it measured 39% compressor energy savings in the cooling season, with a median of 15%. The researchers also found that each degree of warmer indoor air cuts total HVAC energy by an average of 5% to 7%.

At home, that means a few simple settings:

• Mount or move the thermostat away from direct sun, lamps and kitchen heat.
• Set a higher temperature for hours when nobody’s home, and let the system cool the house shortly before you return.
• Raise the setting a degree or two and run the ceiling fan instead.
• Use the app’s away mode on vacations, and check the schedule each spring.

An ENERGY STAR certified smart thermostat can handle this for you. ENERGY STAR notes that almost half of the average household’s energy bill goes to heating and cooling, which is where these small settings add up. For more ways to trim the bill, see how using solar energy can lower your electricity bills.

What else should you check before summer?

• Roof and gutters: clear debris and look for damaged shingles before summer storms. Our guide to roof inspections explains what to look for.
• Yard: water early in the morning, and mulch beds to hold moisture.
• Outdoor faucets and hoses: fix drips and check sprinkler heads.
• Pool: test the water, clean filters and check the pump before you open it.

Going away for part of the summer? Set the thermostat to an away schedule rather than turning the AC off, so humidity doesn’t build up inside. Unplug electronics you won’t use, put lights on timers and ask a neighbor to collect mail. A quick walk-through before you leave, checking for drips under sinks and around the water heater, can save you from coming home to a wet floor.

Should you prepare your home differently if you’re selling in summer?

Buyers notice comfort. A cool, bright house with working AC shows better than one that feels stuffy at a weekend open house. Keep the AC serviced, the blinds managed and the yard watered while you’re on the market.

Listing soon? Bright summer light helps; see our tips on home photos that upgrade your listing. Weighing a bigger upgrade? Read whether to install AC before selling your home, and see easy ways to refresh your pool before selling. When you’re ready, a Beycome flat fee MLS listing puts your home on the major home search sites and the MLS from $99 in most states ($129 in California and Illinois), with $0 due to Beycome at closing, and you can update photos and details as the season changes. Want experts working with you through the sale? Beycome Concierge is $1,399, and you stay in control of every decision.

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