At Air Texas A/C & Heating, one of the most common questions we hear from San Antonio homeowners is: “How long should my AC unit last?” As we move into 2025, the answer is more important than ever—especially in Texas, where hot summers put air conditioners to the test.

The reality is, there’s no single number. The lifespan of your AC system depends on a mix of quality, installation, maintenance, and climate. Here’s what you need to know:

Not all AC systems are created equal. Higher-end brands are designed with more durable parts and advanced technology, which can give you extra years of comfort. Budget units may cost less upfront but often won’t hold up as long under the Texas heat.

💡 Air Texas Tip: When we recommend a system, we look at long-term reliability—not just the sticker price.

Even the best unit won’t perform well if it’s not installed correctly. Proper sizing, ductwork design, and installation make a huge difference. A system that’s too small will run nonstop, while an oversized one may short-cycle—both leading to early wear and tear.

That’s why every installation by Air Texas is backed by expert knowledge and years of hands-on experience.

Just like your car, your AC needs tune-ups to stay in top shape. Regular maintenance can add years to your system’s life. At minimum, you should:

• Change air filters every 1–3 months
• Schedule annual professional tune-ups
• Keep coils and outdoor units clean

With routine service from Air Texas A/C & Heating, many systems last 15–20 years. Skipping maintenance, on the other hand, often means replacing your unit much sooner.

Texas summers are no joke. High heat and humidity mean your AC has to work harder and longer compared to systems in cooler climates. That extra workload can shorten its overall lifespan, which is why local expertise matters when choosing and maintaining a system.

On average, most AC units last 12–15 years. With professional installation, high-quality equipment, and proper maintenance, you can stretch that closer to 20 years. Here in San Antonio, we often see units closer to the 12–15 year range due to long, hot summers.

If your system is getting older, here are some red flags that it may be time for repair—or replacement:

• Higher energy bills without a change in usage
• Frequent breakdowns or costly repairs
• Hot and cold spots around the house
• Loud noises or unusual smells
• Your system is 12+ years old

At Air Texas A/C & Heating, we believe in keeping your home comfortable without surprises. Whether you need seasonal maintenance, a repair, or you’re considering replacing your old unit, we’re here to help you make the best decision for your home and budget.

👉 Call us today at (210) 602-7181 to schedule your AC inspection or tune-up. Let’s make sure your system is ready to keep up with the Texas heat in 2025 and beyond.