How Often Should You Service Your AC in Austin?

How often should you service your AC in Austin?

You should have your AC professionally serviced at least once a year, and spring is the best time to do it. If your home also uses a heat pump or furnace, plan on two visits a year: one in spring for cooling and one in fall for heating.

That's the baseline. A few situations call for extra attention between visits: systems over 10 years old, homes with pets or allergies, a recent remodel or construction dust, or an AC that has needed repairs in the past year. You don't necessarily need more tune-ups, but you should check filters more often and pay attention to changes in how the system sounds, smells, and cools.

Why do Austin AC systems need more attention?

Austin AC systems need more attention because they simply run more. More run time means more wear, the same way a car with highway miles needs more frequent oil changes.

• A long cooling season. Here, the AC often runs from spring well into fall, not just a few summer months.
• Hot nights. Summer nights often stay warm, so the system rarely gets a real break.
• Humidity. Your AC works to pull moisture out of the air as well as heat, which adds to the load.
• Attic installs. In many Austin-area homes, the indoor unit and ductwork live in an attic that can get far hotter than the outdoors.
• Pollen and dust. Between cedar season in winter and dust the rest of the year, filters clog faster than you might expect.

None of this means your system is doomed. It just means a yearly check-up matters more in Central Texas than it does in milder climates.

When is the best time to schedule an AC tune-up?

The best time to schedule an AC tune-up in Austin is March or April, before the first real heat wave. You'll catch problems while it's still mild outside, and you'll beat the summer rush, when every HVAC company in town is busy with breakdowns. Here's a simple year-round calendar:

What can you do yourself between visits?

You can handle the simple, safe stuff yourself: filters, clearing debris, and keeping an eye (and ear) on the system. Here's a homeowner checklist:

• Check the air filter monthly in summer and replace it when it looks dirty.
• Keep about 2 feet of clearance around the outdoor unit. Trim shrubs, pull weeds, and point your mower's discharge away from the unit so grass clippings don't end up in the coil.
• Rinse the outdoor coil gently with a regular garden hose a couple of times a year. Turn the power off at the outdoor disconnect or breaker first, and never use a pressure washer, which can flatten the fins.
• Confirm the condensate line is draining. When the AC is running on a warm day, you should see water dripping from the drain line outside.
• Keep supply vents open and return grilles unblocked.
• Replace thermostat batteries once a year if your thermostat uses them.
• Listen and look. New noises, smells, ice on the lines, or water around the indoor unit are worth a call.

What does a professional AC tune-up include?

A professional AC tune-up is a top-to-bottom check of the parts that wear out, plus the cleaning and measurements a homeowner can't do safely. A thorough visit typically includes:

• Checking refrigerant pressures and looking for signs of leaks
• Inspecting and cleaning the outdoor condenser coil
• Inspecting the indoor evaporator coil
• Flushing the condensate drain and testing the safety float switch
• Testing capacitors and the contactor
• Tightening electrical connections
• Measuring how much power the motors draw
• Checking the blower motor and wheel
• Measuring the temperature difference between the air going in and coming out
• Checking thermostat operation

A fall heating visit covers the other side: heat strips and controls on heat pumps and electric furnaces, and on gas furnaces, the burners, flame sensor, venting, and a carbon monoxide check. You can see our full list on the maintenance page.

How often should you change your AC filter in Texas?

In Texas, most homes should replace a standard 1-inch filter every 1 to 3 months, and every month during peak summer if you have pets or allergies. Thicker filters last longer. Always follow your system's recommendations, but here's a general guide:

Two tips. First, write the install date on the filter's edge so you're not guessing. Second, more filtration isn't always better. A very high-efficiency 1-inch filter can restrict airflow in systems not designed for it, which can lead to a frozen coil. If you want better filtration, ask a technician what your system can handle.

Is AC maintenance worth it?

Yes, for most Austin homes, yearly AC maintenance is worth it. Here's what it buys you:

• Fewer breakdowns. A weak capacitor or clogged drain found in April won't leave you sweating in August.
• Better efficiency. Clean coils and proper airflow help the system cool without working harder than it needs to.
• Longer system life. Most central AC systems in Central Texas last about 10 to 15 years, and good care helps yours reach the upper end of that range.
• Warranty protection. Some manufacturer warranties require proof of regular maintenance. Check your paperwork, and keep your receipts.

To be straight with you: maintenance won't make a worn-out system new again. If your AC is near the end of its life, we'll tell you honestly, and our repair-or-replace guide can help you think it through. We won't use a tune-up as an excuse to sell you something you don't need.

Frequently asked questions