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How Long Does It Take to Install an AC Unit: Factors and Timelines

HVAC Services » Air Conditioning Replacement » How Long Does It Take to Install an AC Unit: Factors and Timelines

In today’s age, an air conditioner is no longer a luxury but a necessity. In homes, they provide relief from the insufferable heat and are important for climate control. When investing in an AC unit, homeowners need to consider many factors, such as the unit’s cost, energy efficiency, and the AC unit installation process.

One of the most important factors to consider is how long does it take to install an AC unit. Most people are concerned about how long it takes to install an AC unit and how it will impact their daily life. Energy HVAC Services is a leading HVAC company that can provide expert AC installation services, and in this blog post, we will address common concerns and provide timelines and factors that can impact installation times.

Factors Affecting How Long Does It Take To Install An AC Unit

Let’s delve into the various factors that can influence the time taken for AC installation. These determining elements range from the type of AC system and the complexity of the installation to the condition of your existing HVAC setup. Understanding these factors will help you estimate the time needed for your AC installation process.

  • Type of Unit: Central AC units often take longer to install than window or portable ones due to their complexity. Ductwork, if not already present, can significantly add to the installation time.
  • Preparation of the Installation Site: If any modifications are needed to accommodate the AC unit, such as making space in a crowded utility closet or fortifying an existing window, this will add to the overall installation time.
  • Condition of Existing Ductwork: In the case of a central AC unit, if the ductwork is old or damaged, it might need to be repaired or replaced, resulting in extra time.
  • Professional Availability: The schedule of the HVAC professionals can affect the installation time. Busy seasons like summer can lead to booked schedules, causing possible delays.
  • Local Building Codes and Permits: In some cases, local regulations may require certain permits before installation. Acquiring these permits can add to the timeline. 

Remember that each installation is unique and these factors might not all apply to your situation. It’s always best to consult with a professional to get an accurate estimate.

Install an AC Unit

Install an AC Unit

A General Timeline for Different AC Installations

  • Window Units: These are typically among the simplest to install. However factors like unit size, window frame strength, and accessibility to an electrical outlet can influence the exact time. It’s common for window units to be installed within a few hours or even less if all conditions are favorable.
  • Ductless Mini-Splits: These systems are more involved than window units but less so than central air systems. They don’t require ducting, which simplifies things, but they do need both indoor and outdoor components to be installed. A day or less is a typical timeframe for many installations, but this can vary based on challenges faced during the installation.
  • Central Air Systems:  A central air system is the most complex type of installation and can take multiple days. The installation process includes installing ducting, condensers, and other equipment. Depending on the size of the space, the complexity of the installation, and the number of AC units, installation times can range accordingly.

Remember, It is common for installations to be delayed due to inclement weather or lack of availability of contractors or materials. Complex installations may also experience unexpected issues that require additional time and work to complete.

Benefits of Professional Installation by Energy HVAC Services

Professional installation by Energy HVAC Services has many benefits, including:

  • Expertise and Experience: Our team of trained professionals brings years of experience to the table. We understand the intricacies of different AC models and can handle installations efficiently, ensuring optimal performance of your AC unit.
  • Avoiding Installation Mistakes: Professional installation reduces the risk of errors that can lead to long-term problems and additional costs. We adhere to all safety standards and building codes to ensure the installation is done correctly the first time.
  • Time and Cost Efficiency: We understand that your time is valuable. Our professionals can complete the installation quickly without compromising on the quality, saving you from the hassle and potential additional costs of DIY installation.
  • Post-Installation Support: Energy HVAC Services doesn’t just install your AC unit; we also provide ongoing support and maintenance to ensure your unit performs at its best for years. We are committed to being there for our customers at every step of the way.
  • Warranty Assurance: By choosing professional installation, you can safeguard the manufacturer’s warranty, which might be voided in case of improper installation. We ensure the installation process aligns with the manufacturer’s guidelines, giving you peace of mind.
  • Safety: Professional installers are trained to handle complex electrical components that come with the installation of an AC unit. By choosing professional service, you ensure the safety of your home and family.


In conclusion, how long does it take to install an AC unit can vary based on many factors such as the type of unit, complexity, and size of the space. It is essential to rely on an experienced HVAC company, like Energy HVAC Services, for expert installation and proper maintenance. If you have any questions related to AC installation or maintenance, feel free to reach out to us. We are here to ensure you enjoy high-quality services from start to finish.

Frequently Asked Questions

What factors should be considered when choosing the size of an AC unit?

When choosing the size of an AC unit, consider the square footage of the area to be cooled, the local climate, insulation quality, and the number of windows. A correctly sized unit ensures efficient cooling and energy use, avoiding oversized or undersized units that can lead to higher costs and reduced comfort.

How do I choose the right size AC unit for my space?

Choosing the right size AC unit is based on the square footage of your space and its cooling needs. It's important to get a unit that matches your home's size to ensure efficiency and comfort. Consulting with an HVAC professional can provide a precise recommendation.

Are there any specific maintenance tips for a newly installed AC unit?

Yes, for a newly installed AC unit, it's essential to regularly change or clean the filters, ensure the unit is free from obstructions, and have it professionally inspected at least once a year. Proper initial care can boost its efficiency and lifespan.


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