6 Ways to Winterize Your AC (Air Conditioner) [and extend it's efficiency]

As the winter season approaches, it's crucial to prepare your home for the colder months, and that includes winterizing your air conditioning unit. Winterizing your AC not only helps protect the system but also ensures its optimal performance when you need it again. In this article, we will explore the top ways to winterize your AC, keeping it in top-notch condition during the off-season.

  1. Clean and Inspect Your AC Unit: Before winter sets in, it's essential to clean the exterior of your AC unit. Remove any debris, leaves, or branches that may have accumulated around the unit during the fall. Inspect the unit for any visible damage and address any issues promptly. A clean and well-maintained AC is less likely to face problems when restarting in the warmer months.
  2. Cover Your AC Unit: Invest in a weatherproof cover specifically designed for your AC unit. This cover will shield your AC from harsh winter weather, preventing ice, snow, and freezing rain from causing damage. Ensure the cover is securely fastened to the unit but allows for proper ventilation to prevent condensation.
  3. Seal Any Leaks: Check for any gaps or leaks in the ductwork and seal them using appropriate materials. Leaks can lead to heat loss and increased energy consumption. By sealing these gaps, you not only enhance the efficiency of your HVAC system but also prevent cold drafts from entering your home.
  4. Change or Clean the Air Filter: A clean air filter is crucial for the efficient operation of your AC unit. Before winterizing, either replace or clean the air filter. A dirty filter can restrict airflow and strain the system, leading to potential issues when you turn it on again.
  5. Adjust the Thermostat: Lowering the thermostat setting during the winter can help reduce energy consumption. Set your thermostat to a lower temperature when the AC is not in use regularly. This not only saves energy but also reduces wear and tear on the system.
  6. Schedule Professional Maintenance: Consider hiring a professional HVAC technician to conduct a thorough inspection and maintenance routine. They can identify and address potential issues, ensuring that your AC unit is ready to perform optimally when you need it again.
  7. Elevate the Unit: If your AC unit is at ground level, consider elevating it slightly by placing it on a platform. This can prevent snow accumulation around the base of the unit, reducing the risk of water damage and rust.


Winterizing your AC is a crucial step in maintaining the longevity and efficiency of your HVAC system. By following these top ways to winterize your AC, you can protect your investment and ensure that your air conditioning unit is ready to keep you cool when the warmer months return. Taking the time to prepare your AC for winter now can save you from potential headaches and costly repairs in the future.

Here at Kennon Heating & Air Conditioning we want you to enjoy your home to the fullest. That starts with making sure that the air in your home is clean and at the perfect temperature for you. If we can help in any way, please contact us via email or phone (678) 251-9776. Stay cool, stay cozy.

We proudly serve all of North Metro Atlanta to North Georgia, including Cumming, Alpharetta, Atlanta, Braselton, Buford, Cobb County, Dacula, Dawsonville, Dultuh, Flowery Branch, Gainesville, Hoschton, Jefferson, Johns Creek, Peachtree Corners, Lawrenceville, Norcross, Oakwood, Sugar Hill, Suwanee and more.