Fall in Florida may not arrive with snow boots and wood piles, but the change in season is still a good excuse to give your home a quick efficiency check. You don’t need a major renovation, a spreadsheet, or a contractor standing in your driveway explaining “thermal envelopes” for forty-five minutes. A few simple things can make a noticeable difference — and yes, this includes new homes as well!

1. Check your weatherstripping.
Doors and windows are professional-grade escape artists when it comes to conditioned air. If you can see daylight around a door, your air conditioner can see it too. Replacing worn weatherstripping is inexpensive, takes very little time, and helps keep the air you already paid to cool or heat inside the house.

If you just moved into a new build, check your front door anyway. Simply moving furniture and boxes in and out can tear the weatherstripping, and a full door’s worth usually costs less than $20.

2. Change the HVAC filter.
Yes, everyone knows this. No, everyone does not do it. A dirty filter makes your system work harder and can reduce airflow throughout the house. If you cannot remember the last time you changed it, congratulations — it is probably time.

For those who are memory-impaired (like me), set up a recurring shipment of air filters through your favorite online retailer.

As an aside, when you change your filter, add a cup of white vinegar to the condensate drain cleanout tee, if your system is set up for it. This can help prevent slime and buildup from clogging the drain and shutting down your A/C when the float switch trips.

3. Give the thermostat a schedule.
There is no reason to condition an empty house like royalty is arriving at noon. A programmable or smart thermostat can reduce unnecessary runtime while still having the house comfortable when you return.

Pets? No problem. For most healthy household pets, a modest temperature adjustment while you’re away is generally fine — just keep their individual needs in mind.

4. Check ceiling fan direction and use them wisely.
Fans do not actually change the temperature of a room; they change how comfortable you feel in it. Turn them off when the room is empty. Your furniture does not appreciate the breeze.

5. Seal the little gaps.
Take a look around plumbing penetrations, exterior doors, attic access panels, and other openings. Small gaps add up. A little caulk or foam in the right place can stop conditioned air from wandering off to enjoy the outdoors.

None of these projects are glamorous, and none will make your neighbors stop traffic to admire them. But efficiency usually comes from dozens of small things working correctly rather than one expensive gadget. It doesn’t matter if it’s a brand-new house, either — caulk can shrink as it cures, materials move, and Florida bugs absolutely love small entry points.

Fall is a much better time to find these problems than when something decides to quit on the hottest or coldest day of the year.

And as always, questions are free. If you need guidance on any of this, just call me. I'll talk you through it.