Installing an air conditioner is a huge investment and one that you’ll want to last for years to come. 

Unfortunately, many people make costly mistakes during the installation process that can shorten the life of their AC unit and cost them a lot of money in the long run.

This post will examine some things you should avoid when installing your air conditioner in Singapore. 

While these tips might seem common sense, you’d be surprised how many people make these mistakes daily. So if you’re about to install a new AC unit, read this post first!


When it comes to air conditioners, one of the biggest mistakes you can make is not thinking about where you’re going to put them. If you’re not careful, you might end up paying for an installation that won’t even work.

Here are some tips for avoiding placement mistakes:

  • Make sure there’s enough space for the air conditioner to breathe. It must be able to draw in air from the outside to cool down the room.
  • Consider the direction of the wind. You don’t want the exhaust blowing right into our window or door.
  • Think about how the air conditioner will affect your view. If you’re using a window unit, make sure you have curtains that can cover it up when it’s not in use.


When it comes to air conditioners, one of the biggest mistakes people make is sizing. They’ll get an air conditioner that’s too big for their space, or they’ll choose one that needs to be more powerful. And what does this do? It increases the installation cost and decreases the unit’s life.

So how do you avoid sizing mistakes? By working with a contractor who understands the needs of your space. 

They’ll be able to help you choose the right air conditioner for your needs and make sure it’s properly sized for your home or office.

Wrong Thermostat Placement

You should avoid placing your thermostat in direct sunlight. The warmth of the sun will cause the air conditioner to work harder and could lead to an increase in your energy bill.

Ideally, you should place your thermostat in a room where the temperature is comfortable for you to be in but not too warm. You don’t want the air conditioner to run all the time, so find a happy medium.

Installation Without a Leak Check

One of the common mistakes is neglecting a refrigerant leak check after the AC installation. 

aircon water leaking

The truth is that the refrigerant level must be checked immediately after installation. A leak check not conducted in due time may result in serious issues.


With a little know-how and careful planning, you can avoid the most common – and costly – mistakes made during air conditioner installation.

Ready to start your air conditioner installation? Avoid these pitfalls and get the job done right the first time.