One of the most common questions homeowners ask when facing an air conditioning replacement is, “How long does it take to replace an AC?” It’s a critical question, especially in Arizona, where a day or two without AC brings indoor temperatures to miserable levels. The answer isn’t always straightforward, as several factors can influence the timeline.
From rooftop package units to split systems tucked away in attics, each AC replacement presents its own unique set of challenges and timelines. Understanding these variables not only helps set realistic expectations but also allows homeowners to better plan for what can be a significant home improvement project. Let’s explore the key factors that determine how long your AC replacement might take.
Factor #1: Unit Location
Where an AC is being installed will affect both the AC’s replacement schedule, and the overall cost.
Packaged Roof Units - 3-4 Hours
Package units installed on roofs typically take 3-4 hours to replace, making them one of the quickest AC installation scenarios. This efficiency stems from their all-in-one design, where both heating and cooling components are housed in a single unit. Despite the need for roof access and safety considerations, rooftop installations offer clear workspace advantages – technicians can easily remove the old unit and position the new one without navigating through tight indoor spaces or dealing with separate indoor components.
Attic Split Units - 6-8 Hours
Split systems, particularly those installed in attics, require 6-8 hours for replacement due to their more complex configuration. These systems consist of two main components – an outdoor condenser unit and an indoor air handler – connected by refrigerant lines. The longer installation time is necessary for carefully removing and replacing both units, running new refrigerant lines through the home, and ensuring proper connection between the indoor and outdoor components.
Garage Units - 6 Hours
AC units installed in garages typically require around 6 hours for replacement, striking a middle ground between rooftop and attic installations. While garage locations offer better accessibility than attic units, they still involve careful maneuvering in a space that often doubles as storage. Technicians must ensure proper ventilation, manage electrical connections, and sometimes modify existing ductwork while working around parked vehicles and stored items.
Factor #2: Weather Conditions
Weather plays a crucial role in AC replacement timelines. Extreme heat can make it harder to get work done, while rain may pause rooftop installations entirely. Additionally, strong winds can make it dangerous to move heavy equipment, especially on rooftops, potentially extending the installation timeline.
Factor #3: Existing Infrastructure
The condition of your home’s existing HVAC infrastructure significantly affects replacement time. Outdated electrical systems might need upgrading to meet current codes. Damaged or poorly installed ductwork could require repairs. Corroded or incompatible mounting brackets and line sets may need replacement. These additional tasks can extend the project beyond standard installation times.
Factor #4: Crew Experience
The expertise of your installation team greatly influences completion time. Experienced technicians can anticipate and quickly resolve common installation challenges, while less seasoned crews might need additional time to ensure everything is done correctly. Qual-tech’s technicians are experienced enough to handle installation jobs quickly and efficiently.
Factor #5: Equipment Availability
Supply chain issues or specific model requirements can impact project timelines. While standard units might be readily available, specialty systems or specific efficiency ratings could require ordering and delivery time. If you decide to go with Qual-tech we have access to efficient R-32 systems on whenever you need them. Smart planning and ordering equipment in advance helps avoid delays, but unexpected equipment issues might necessitate additional waiting time.
These various factors can combine to significantly impact your total AC replacement timeline. For instance, while a rooftop package unit typically takes 3-4 hours to install, adverse weather conditions could postpone the project by a day or two. Understanding these variables helps you plan accordingly, whether that means arranging time off work or preparing for temporary cooling solutions during the installation process.
What if I'm Installing More than 1 unit?
Oftentimes more than one AC system may need to be replaced. Doing both systems at once can streamline the overall workflow and maximize their efficiency. Batching replacements like this can also yield cost savings through reduced labor expenses for each unit. One potential downside, however is that you will be without both ACs for a number of hours. Doing multiple units at once may also not fit within your current budget, in which case doing the units separately or opting to repair an AC may be a better choice.
For rooftop package units, completing two replacements back-to-back may only require an additional 2-3 hours beyond the standard 3-4 hours per unit. Similarly, swapping out two split systems in the attic as a single project saves time versus doing them separately. While a lone attic replacement typically takes 6-8 hours, addressing both units together may only add 4-5 hours to that timeline. Garage installations also benefit from this bundled approach, potentially saving two hours worth of work.
As you plan your AC replacement, remember that while basic installation times range from 3-8 hours, your specific timeline may vary based on your unit’s location, weather conditions, and other factors we’ve discussed. The best approach is to work closely with your HVAC contractor of choice to understand your unique situation. At Qual-tech we have an experienced team that can handle whatever installation you might need. Check out our AC installation page for more details.
