It can be an intimidating task to replace an air conditioner. After all, it’s a big investment, and it’s important to get it right. One of the most common questions is: “How long does it take to replace an air conditioner?”

The installation process can take four to eight hours for an average-sized, single-zone air conditioner. This includes the time to remove the old unit, install the new one, and set up all the necessary wiring. The installation time can be longer if the unit is larger or the existing wiring needs to be replaced.

The Number of Units Can Affect the AC Replacement and Installation Time

It’s important to understand that the amount of time it takes to replace an air conditioner depends on several factors. The size of the unit is a major factor, as larger units will require more time to remove and install than smaller units. Another factor is the type of unit you’re replacing. For example, if you’re replacing a window unit, the installation time will be much shorter than replacing a central air conditioning system. 

The installation time will increase if you replace multiple air conditioning units. This is because each unit must be removed and installed separately, which takes more time and effort. For example, if you’re replacing two units, it may take around 12 hours to complete the job. 

Installation Can Go Faster in an Easy-To-Access Location

The unit’s location is also an important factor in determining installation time. The installation time may be shorter if the unit is in an easy-to-access location, such as a basement or attic. However, the installation time may be longer if the unit is located in a more difficult-to-access spot, such as a crawl space or a closet.

Moreover, the complexity of the installation will also affect the installation time. If the unit is connected to a complex network of ducts or is located in a difficult-to-access spot, the installation time may be longer.

It’s Beter To Call The Professionals for AC Replacement and Installation

Hiring a professional for a job like this is the best way to ensure that the job is done properly and that you get the most out of your money. Professionals can properly assess the situation and determine the best course of action for your air conditioner. They will also be able to give you advice on the best type of air conditioner to install and how to maintain it once it has been installed. 

Professionals will also be able to provide you with all the necessary equipment for the job. This includes the correct tools, materials, parts, and any safety gear that may be needed. This is particularly important when dealing with an old or outdated air conditioner. Professionals will also be able to install the air conditioner properly and provide you with a guarantee that the job will be done correctly. 


AC replacement is not a task to be taken lightly. It is a complex process involving various components and requires a professional’s expertise. Depending on the type of air conditioner, the complexity of the job, and the availability of parts, replacing an air conditioner can take anywhere from a few hours to a few days. Furthermore, the process can become significantly more complex if the air conditioner is installed in an unusual location or if other issues need to be addressed. For these reasons, it is best to call a professional if you need to replace an air conditioner. Doing so will ensure the job is done properly and promptly.

Do you need AC replacement in Kentucky? Thompson Heating & Cooling is here to help. Our licensed technicians will work hard and quickly to get you back up and running. Get in touch with us today!