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How Long Will My HVAC System Last?

July 5, 2022 | Blog

Your HVAC system is an important household investment. The machinery is responsible for your daily comfort. It also keeps your household air breathable and healthy.

At Tim’s Southern Air, we aim to keep your system functioning at top performance! Read ahead to learn about your HVAC unit and how certain factors can affect its lifespan!

HVAC Components and Their Lifespans

Your home’s heating and cooling system should last around 15 to 20 years on average. This timeframe may vary based on your climate and how often your unit operates. This estimate is broad, but the components that compile your system individually have a specific service life.

Air Conditioning Units

An air conditioner typically lasts around 12 to 17 years. Regular AC maintenance helps your unit function to its highest ability. Additionally, tune-ups lengthen the overall service life of your AC unit.


Furnaces are one of the most expensive parts of your HVAC system. On average, a furnace lasts about 15 to 20 years. Poor maintenance may lead to costly repairs or a sooner need for a replacement.

Heat Pumps

A heat pump usually lasts about 15 years, although the time may vary based on its usage. Regularly taking care of your heat pump will help the machinery have a longer service life.

Extending Your HVAC System’s Service Life

Your HVAC unit lifespan depends on numerous factors. Multiple ways can help you get the most out of your household heating and cooling system.

Regular Professional Maintenance

Technicians will thoroughly identify potential issues before they turn into a problem. Professionals inspect the system during AC maintenance, keeping it functioning at peak performance.

Keeping Your Air Ducts Clean

It is necessary to keep your home’s ductwork clean. Blockages can cause your system to overwork itself. Malfunctions can occur with excessive AC usage, leading to numerous costly problems in the future.

Invest in a Programmable Thermostat

Your system can become damaged over time if it is constantly running. Programmable thermostats allow you to change temperature settings, only running when people are home.

A programmable thermostat helps your system rest when necessary. Keeping your unit from constantly running will increase your overall AC lifespan.

Consider HVAC Replacement

HVAC replacements are inevitable, even with regular maintenance. There are a few signs to navigate when considering replacing your heating and cooling system.

Higher Energy Bills

It is common for energy bills to rise during excessively hot or cold months. However, an HVAC replacement may be necessary if your energy bill remains high despite no change in your unit’s routine.


Older HVAC models are not as energy efficient as newer models. A lack of energy efficiency can lead to more wear and tear. Although different components of your system age at different rates, professionals recommend replacing your heating and cooling unit every 15 to 20 years.

Frequent Need for Repair

An excessive need for repairs may signal more serious issues in your system. If your HVAC unit requires consistent maintenance, a replacement may be a more cost-efficient option for your household.

Questions About HVAC Replacement? Contact Us!

AC replacement and HVAC tune-ups can be complex. The technicians at Tim’s Southern Air aim to make the process easier! Contact us today to learn about your next steps to replacing your Lafayette HVAC unit! We are also providing air conditioning services in Alexandria on behalf of the Southern Air family!

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What Our Customers Are Saying

Pleasant and Very Knowledgeable

Everyone I dealt with for my service call was pleasant and very knowledgeable. Additionally, I appreciate their willingness to help me find the most economical solution to my situation. I signed up for their service membership and look forward to doing business with them Tim’s in the future. 👍

Damian S.

Very Professional and Friendly

My tech was awesome. Very professional and friendly. He was prompt and helpful. He found the issue quickly and offered a maintenance contract with saved me money. Please send him back to finish the job once the part is in. His professional demeanor is hard to find these days. Thanks for the quick and timely response as well as full communication during the process. Highly recommend

Tim S.

Great Communication and Awesome Service

Cody was an absolute blessing! After trying to figure out what was wrong with my unit all day, I gave Tim’s a call based on reviews. Cody did not disappoint. He was able to diagnose the problem within 10 mins and fix it soon after. Great communication and awesome service.

Kaycee M.