Fall HVAC Maintenance: What Every Homeowner Should Do Before the Cold Sets In

When the long, hot Texas summer finally starts to fade and the evenings get cooler, it’s the perfect time to give your HVAC system a little love. Fall maintenance is more than just a seasonal chore, it’s the key to keeping your system running efficiently, extending its lifespan, and avoiding costly breakdowns when you need it most. Think of it as a yearly wellness check for your home’s comfort system. Here’s what every homeowner should check, inspect, and maintain before winter arrives.

1. Replace or Clean Your Air Filters

Let’s start with the easiest but most important task. Your air filter catches dust, dirt, and allergens to keep your air clean and your system running smoothly. Over time, it gets clogged, forcing your HVAC system to work harder. That means higher energy bills and more wear on your unit. Check your filter every month and replace it at least every 60–90 days, or more often if you have pets or allergies.

2. Inspect and Clean Vents and Registers

Walk through your home and make sure all vents and registers are clean, open, and unobstructed. Dust or furniture blocking airflow can reduce efficiency and make your system struggle to heat or cool evenly. Vacuum vents and use a damp cloth to wipe away debris so air moves freely throughout your home.

3. Check Your Thermostat

Fall is a great time to reprogram your thermostat for cooler weather. If you have a programmable or smart thermostat, adjust your settings for comfort and efficiency. If your thermostat is old or inaccurate, upgrading to a smart model can save energy and help your system maintain consistent temperatures more effectively.

4. Clean Around the Outdoor Unit

Your outdoor condenser has probably collected a fair amount of dirt, leaves, and debris over the summer. Before fall weather kicks in, clear a two-foot space around the unit to allow proper airflow. Check for any visible damage or corrosion. If you’re not comfortable inspecting it yourself, schedule a professional cleaning to remove buildup that could affect performance.

5. Inspect Ductwork for Leaks

Leaky ducts can waste up to 30% of your system’s efficiency. If you notice uneven temperatures in different rooms or higher-than-usual energy bills, your ducts might need attention. A professional HVAC technician can inspect your ductwork for gaps, leaks, or insulation issues and seal them to improve efficiency and comfort.

6. Test the Heating System

Don’t wait until the first cold snap to discover your heater isn’t working. Run your heat for a few minutes to make sure it’s functioning properly. Listen for strange noises, pay attention to unusual smells, and check that warm air is flowing evenly throughout your home. Catching issues early prevents emergency repairs later.

7. Schedule a Professional Fall Tune-Up

Finally, the best step you can take is scheduling a professional HVAC inspection. A licensed technician will check your system’s electrical connections, lubricate moving parts, inspect the heat exchanger, and ensure everything is operating safely and efficiently. Regular tune-ups not only prevent breakdowns but also keep your warranty valid and your utility bills lower.

Keep Your System Healthy All Year

Taking care of your HVAC system in the fall means peace of mind all winter long. It’s about keeping your home cozy, your system reliable, and your energy bills under control.

At Highland AC, we specialize in seasonal maintenance that keeps Texas homes running comfortably year-round. Our technicians will inspect, clean, and fine-tune your system so it performs at its best no matter what the weather brings. Schedule your fall tune-up today and give your HVAC the care it deserves, before the chill sets in.

Learn more about our HVAC maintenance services