Quick Summary

  • AC installation can take as little as four to eight hours.
  • Factors that affect your AC installation timeline include the unit type, unit size, the climate, and installer experience.
  • 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 the 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.

Can AC Installation Be Done in One Day?

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. This includes system testing and calibration, so you can relax knowing your air conditioner is properly installed and ready to run all summer long. 

Is AC Replacement Faster Than a New Installation?

AC replacement can be faster than a new installation if your ductwork is in the correct place and in good condition. It can still take a day or longer to remove your old system and properly connect your new air conditioner. We need to ensure the existing infrastructure can support your new home cooling system and conduct the same functional, safety, and quality-control tests as we would for a new unit. 

How Long Does Ductwork Installation or Repair Add to the Installation Timeline?

Installing new ductwork can extend the AC installation time by several days. Ductwork installation time is affected by several factors:

  • Your home’s size and structural complexity: The bigger and more intricate the network of ducts needs to be, the longer it takes to plan and install.
  • Permitting: Most duct installation requires a permit, which may add scheduling delays. 
  • Accessibility: Many homes have ductwork running through tight crawl spaces and attics, which can slow down workers.
  • Retrofitting complexities: Older homes with failing ductwork require more time to retrofit than installing ductwork in a new build. 

What Happens During an AC Installation?

These are the typical HVAC installation steps we take for both ductless and central air installation: 

  • Step one: We help you choose your new air conditioner by considering factors such as your home’s size (and the BTUs needed to keep it cool), the unit’s efficiency rating, and your personal preferences.
  • Step two: New air conditioner installations and replacements require permits in the State of California; these must be obtained before work can begin. 
  • Step three: We install your new air conditioner in place per local building standards and the manufacturer’s specifications, working quickly without sacrificing quality.
  • Step four: The commissioning phase of the installation is when we verify and document that all components of the air conditioner are functioning as intended. This includes electrical components, mechanical parts, airflow, and ductwork.
  • Step five: Once we’re satisfied that everything is working properly, it’s time for us to hand over the control to you. We show you how it all works and answer your questions before we go.

Factors That Affect AC Installation Time 

Many factors determine the AC installation timeline. 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 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.

Does AC Installation Take Longer in Older Homes?

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.

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.

Do I need to be home for the entire installation?

We’d prefer you to be home for the entire installation. We may need access to certain areas of your house or have questions for you. If you can’t be home, we’ll plan ahead to ensure we can complete the work within a reasonable timeframe and meet all your specifications.

Will my power be out during the AC installation?

In most homes, we can disconnect power to the areas we’re working in without affecting the rest of the home. You can still use the kitchen, the lights, and other outlets throughout the house while we work.

Can you install an AC unit in the rain?

It’s not a good idea to install your air conditioner when it’s raining. Rain can introduce unwanted moisture into the refrigerant lines and create electrical hazards, affecting installation quality and leading to avoidable long-term issues with your AC. The rain also makes it unsafe for our technicians to do their job. We’ll schedule a different date to complete your installation if our technicians deem it too rainy to work. 

Should I replace my furnace at the same time as my AC?

If your furnace is aging and you’re already installing a new air conditioner, we’d recommend replacing both at once for better compatibility and optimal energy efficiency. You may qualify for rebates by upgrading to a high-efficiency HVAC system, and you can also save money on labor costs by installing both at the same time.

Meet the Author
Nicholas Gildark
Nicholas Gildark

Nicholas Gildark is a San Diego native who comes from a tight knit family and enjoys spending time with them. Nicholas is engaged to his beautiful fiance Allison Velasquez. The two of them recently purchased a home.
company icon