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Why You Shouldn't Install A Split System Air Conditioner Yourself

October 23, 2023

Homeowners are becoming more self-reliant these days, with many choosing to take on various DIY projects around their properties. 

While there's a sense of accomplishment that comes with completing tasks yourself, there are certain undertakings that are best left to professionals. One such project is the installation of a split system air conditioner. Located in sunny Brisbane, Australia, we frequently receive the question: "Can I install a split system air conditioner myself?" To help address this common query, we've put together the top reasons why you should think twice before going the DIY route with this particular project.

1. Expertise Matters
Installing an air conditioner isn't as straightforward as setting up a piece of furniture. The process requires in-depth knowledge about electrical components, refrigerant management, and system calibration. A slight error in any of these areas can result in an inefficient system or, worse, a hazardous situation. Professional installers have undergone extensive training to ensure that every installation is safe and efficient.

2. Warranty Protection
Many air conditioner manufacturers will void their product warranty if the unit is not installed by a licensed professional. This is because they recognize the complexities involved in the installation process. By going the DIY route, you risk losing out on potential future repair coverage.

3. Refrigerant Handling
Handling refrigerants, the compounds essential for cooling in an AC system, requires special certification in Australia. The release of these substances into the atmosphere is not only harmful to the environment, but it's also illegal without the necessary credentials. Professional installers have the training and certification to handle refrigerants responsibly.

4. Customised Recommendations
A critical step before installing an AC system is evaluating the space it will cool. Several factors come into play: room size, window positions, insulation levels, and more. Based on these determinants, a professional can recommend the best type and size of unit for optimal performance. Missing this step could result in an overworked or inefficient system.

5. Safety First
With electrical connections, lifting heavy units, and working with specialized tools, there are plenty of opportunities for things to go wrong. A professional installer is familiar with the risks and takes precautions to ensure everyone's safety during the installation process.

6. Long-Term Performance
A correctly installed air conditioning system will run more efficiently and have a longer lifespan. When a system is poorly installed, it can lead to reduced performance, higher electricity bills, and a shorter system lifespan.

7. Save Time and Money
While it might seem like doing the installation yourself would save money, the costs of potential mistakes and complications can quickly add up. Not to mention the time you'll spend sourcing equipment, studying the process, and potentially troubleshooting issues. Hiring a professional ensures the job is done right the first time, saving you from future expenses and hassles.


While Brisbane's climate makes having an air conditioner almost a necessity, the installation of such a system is not a DIY-friendly project. The potential risks and complexities involved make it a task best left to trained professionals. So, the next time you think about installing a split system air conditioner yourself, remember the long-term benefits of having it done by an expert. Your comfort, wallet, and safety will thank you.


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