Quick Summary
- AC installation can take as little as four to eight hours.
- Installation takes longer for complex systems, additional ductwork, or hard-to-access locations.
- Prepare for AC installation by clearing the area and keeping pets and children away.
Why Installation Time Matters for Your AC Project
When replacing an air conditioner, you want to get things wrapped up as quickly as possible. However, no one wants a rushed job. El Cajon homeowners want the peace of mind that a professional has taken their time to install, connect, and test the system. Finding a balance between quality installation and quick service is key.
Installing an AC unit requires several steps that take some time to complete. This process can take hours or days, depending on your unit’s type, size, and condition. Understanding the specifics of AC installation is important to ensure everything goes smoothly, as is working with a qualified professional for safety and proper operation. Below is the approximate timeline for installing an AC unit.
How Long Does It Take to Install an Air Conditioner?
How long does it take to install an air conditioner? In the majority of cases, the average AC installation time is between four and eight hours, including removing the old unit, connecting the new one, and running quality checks to make sure it’s ready to run reliably. However, the installation timeline could take longer if the installation involves upgrading an existing unit or repairing any preexisting damage.
Factors That Affect AC Installation Time
A number of factors determine how long HVAC installation will take in your home. Here are the main ones for homeowners to keep in mind.
Unit type
There are two main types of AC units — central air conditioners and window air conditioners. Central air conditioners are typically more complex and therefore take longer to install than window air conditioners. Window units are much simpler, since all you need to do is place the unit in the window, secure it with screws, and plug it in.
Unit size
The size of the AC unit is an essential factor to consider when installing a new air conditioning system. The larger the unit, the longer it will take to install, and the more labor is involved. Generally, installation of a small AC unit can take four to eight hours, while larger units may require eight to 12 hours or more to complete.
Accessibility
The location of the air conditioning unit is important when it comes to how long the installation will take. The farther you place the AC unit, the longer the installation will take. If there are any obstacles in between, such as trees or other structures, this can further add time and complexity to the process.
Additionally, you need extra time and precautions if you want the AC unit installed in an attic or on a rooftop. Installing an AC unit in a tight space or at a difficult angle can also increase the time required for installation.
Climate
The time to install a central air conditioner can vary depending on your area’s temperature and humidity. For example, installers may take extra precautions in hot and humid climates to prevent heat exhaustion or dehydration. Cooler temperatures allow installers to work more efficiently. Furthermore, certain components of an AC system, such as condensers, may need additional time if installed outdoors to withstand harsher weather conditions like intense sunlight or heavy rainstorms.
The age of the home
Older homes may require more time and effort for installation because older construction materials can be harder to work with, and wiring may need to be replaced or upgraded for modern systems. Additionally, components such as ventilation systems or ductwork in older homes may have deteriorated over time, making it difficult to install the new AC system.
The number of units
The more AC units you need, the longer and more complex the installation process will be. Not only do you have to install multiple units in different parts of your home, but you also have to ensure they are connected properly and working as one cohesive system. This can take significant time, depending on how many ACs are involved.
The experience of the installer
When working with a company without experience, installing an AC unit will take longer because they may encounter more difficulties. Comfort Bros Heating, Air, and Plumbing has a better understanding and advanced troubleshooting skills to address any unforeseen issues that may arise during installation.
How To Prepare for Your AC Installation
How can you prepare your home to make it as quick and painless as possible? Follow these tips:
- Clear the work area of furniture, rugs, and any other obstacles.
- Make arrangements to ensure pets and children are safely clear of the work area.
- Clear your outdoor area by removing yard furniture, yard waste, and movable landscaping away from where the outdoor AC unit will be installed.
- Clear the path from the driveway to the work area to allow technicians to walk from their vehicle to the installation site.
By following this quick checklist, you’ll make the installation process simpler and faster for your technicians, saving you on labor costs and getting your new system up and running sooner.
Financing Options for AC Installation
A new air conditioner offers countless benefits, including efficiency in line with energy usage standards in California and beyond. While a new air conditioner can reduce energy costs by up to 15%, it requires a large investment. In some cases, this cost puts a new unit out of reach, which is an issue when summer is on its way.
We proudly offer flexible, affordable financing options for AC installation. As our past customers have found, this financing option means new units are never out of reach for those who need them.
Schedule AC Installation With Comfort Bros Today
The best way to get your AC installed quickly is to work with experienced professionals. The Comfort Bros team has decades of expertise installing ACs of all kinds, ensuring an efficient, high-quality installation every single time. For more information or to schedule your fast AC installation today, don’t hesitate to contact us.
Frequently Asked Questions
How long does it take to install a ductless AC system?
Ductless mini-splits can usually be installed in a day or less. Installation may extend to up to two days of work if you need multiple units or have a complex home layout.
Can same-day air conditioner installation be done?
Yes, in many cases, same-day air conditioner installation is possible. If your system is straightforward and the space is easy to access, a team can usually install the AC in less than eight hours.
Is AC replacement faster than new AC installation?
AC replacement can be faster than a new installation if your ductwork is in the correct place and in good condition. Otherwise, the need for new ductwork can extend the installation timeline by a few days.

