How Long Does it Take to Install an HVAC System?

A man servicing an HVAC system.

It’s impossible to give a one hundred percent accurate answer to this question. There are too many variables that will need to be taken into consideration. That’s why you’ll need to have a site visit from your local air conditioning sales firm. They can help to advise you regarding the best system for your needs and the length of time it will take to fit.

On average, an HVAC system can be fitted within a week, sometimes in as little as two days. The exact timescale will depend on several key factors.


It seems obvious but it’s worth mentioning. According to HVAC Technician, the bigger your home or business the longer the air conditioning unit is going to take to fit. In the first instance the larger the space the more units that will need to be fitted and the greater the amount of ducting. 

This has a direct relation to time as each unit can take hours to install. Of course, the ductwork can be more complex as you’ll probably want it to be invisible. This means getting inside your walls which can be time-consuming and messy. Alongside this, the damage will have to be repaired to ensure your home looks exactly the same as before. 

It’s much easier to install the air conditioning in a house that’s being built. 

New Or Replacement?

If your home already has an air conditioning system but it’s old and failing, then you’ll be looking at a replacement. The good news about this is that, in most cases, the new system can use the ducts and vents from the old system. The less that needs to be changed the easier, and therefore, faster, the job will be.

Of course, a new system is much more labor-intensive and requires alterations inside your home. This will take longer to install and will cost considerably more than a replacement.

But, a good quality air conditioning system will add value to your home, making it a good investment. 

The Type Of Air Conditioner

There are two main types of air conditioners, the split unit, and the packaged unit. In simple terms, the split unit has a separate unit outside the building to cool the air. This is piped to the inside unit and is the quietest option. 

An alternative is a unit that does it all and simply needs to be bolted in position with a vent out of the wall.  Although that’s a simplistic definition, it illustrates the difference in installation time between split and packaged units. 

This factor is also complicated by where the outside unit is going. It’s common to place part of a split unit on the roof of your apartment block. But, that’s not the easiest location to access with an HVAC system. Cranes may be needed which will increase cost and timescale.

The ultimate decision will be made in accordance with the finance available and what system best suits your needs. That’s why you need to chat to the specialists before committing to anything.  

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