What Is The Average Lifespan Of An AC Unit?

As summer approaches, you might wonder how long your air conditioning unit will last. With sweltering temperatures and high humidity, a reliable AC system is necessary for comfort and health. But what is the average lifespan of an AC unit, and when should you consider AC installation in Hillsboro, OR?

In this blog post, O’Leary Air will provide you with all the information you need to know about the average lifespan of an AC unit, factors that can influence its longevity, and how to extend its life. Additionally, we’ll discuss when it’s time for an AC replacement in Hillsboro, OR, and why choosing O’Leary Air for your AC needs is the best decision.

Understanding the Average Lifespan of an AC Unit

The Basics

The average lifespan of an AC unit varies depending on its type, usage, and maintenance. Typically, central air conditioners have a lifespan of 15-20 years, while window units last around ten years. However, these numbers can fluctuate based on several factors, such as the quality of the unit, the climate, and how well it’s maintained.

Factors Affecting AC Lifespan

Quality and Brand
Just like any other machinery, the quality and brand of your AC unit play a significant role in determining its lifespan. Premium, well-built AC systems from reputable manufacturers tend to last longer than cheaper, generic models. Investing in a high-quality unit ensures better performance and durability.

Climate and Usage
Your location and climate can also impact the lifespan of your AC unit. AC systems in extreme temperatures or high humidity regions may experience more wear and tear, potentially shortening their lifespans. Additionally, constantly running your AC may not last as long as a unit that’s only used occasionally.

Regular maintenance is crucial to extending the life of your AC unit. This includes changing the air filter, cleaning the coils, and scheduling annual inspections by a professional technician. Neglecting these tasks can lead to decreased efficiency, higher energy bills, and a shorter lifespan for your unit.

Extending the Life of Your AC Unit

Schedule Regular Maintenance
One of the best ways to extend the life of your AC unit is through regular maintenance. We recommend scheduling an annual maintenance appointment with our expert technicians at O’Leary Air. We’ll thoroughly inspect your system, clean the coils, check for any issues, and ensure it runs efficiently.

Change Air Filters
A dirty air filter can restrict airflow, forcing your AC unit to work harder and wear out faster. To prevent this, change your air filter every 1-3 months, depending on your usage and type of filter.

Upgrade Your Thermostat
Consider upgrading to a programmable or smart thermostat, which allows you to set different temperatures throughout the day based on your needs. This helps reduce energy consumption and the strain on your AC unit, potentially extending its life.

When to Consider AC Replacement in Hillsboro, OR

If your AC unit is nearing the end of its average lifespan or experiencing frequent issues, consider an AC replacement in Hillsboro, OR. Here are some signs that it’s time for a new unit:

  • Frequent repairs: If your AC system requires constant repairs, investing in a new unit may be more cost-effective.
  • Decreased performance: If your AC isn’t cooling your home as efficiently as it once did, it could be a sign that it’s reaching the end of its life.
  • Increased energy bills: Older AC units are less energy-efficient, leading to higher energy bills.

Why Choose O'Leary Air for AC Installation and Replacement in Hillsboro, OR

At O’Leary Air, we pride ourselves on providing top-notch AC installation and replacement services in Hillsboro, OR. Our experienced technicians are dedicated to ensuring your new AC system is installed correctly and efficiently for optimal performance and longevity. Here’s why you should choose O’Leary Air for your AC needs:

  • Expertise: With years of experience in the industry, our technicians have the knowledge and skills to handle any AC installation or replacement job.
  • Quality Products: We only work with reputable manufacturers, ensuring you receive a reliable AC system.
  • Customer Satisfaction: Your satisfaction is our top priority. We’ll work closely with you to ensure your AC needs are met and you’re happy with the results.


Understanding the average lifespan of an AC unit is essential in determining when it’s time for an AC installation or replacement in Hillsboro, OR. Maintaining your current unit and knowing when to invest in a new one can ensure your home stays comfortable all year round. When the time comes for AC installation or replacement, call O’Leary Air for reliable service.