The cost of central air conditioning is generally estimated around $4000, but it may be more based on your needs and demands. Though more often central air conditioner is installed with the notion of providing a cooling effect to the room, yet it can work as a central heating system during the winter. Central air conditioning has become more popular than the unit air conditioner due to many factors associated with it.

1. A window or a small wall air conditioner cools a small area but a central air conditioner uses a central air handling unit like forced air furnace or a pump and a complete sophisticated air duct for uniform cooling system, throughout the room.

2. It uses air from different corners of the room for re-filtering and thus clean wind prevails in the room. The compressors are located outside hence, it reduces the noise level.

Before you install a central air conditioning system, make sure that your house is equipped with the facilities meant for it. Then make a choice among your needs, whether you need to consult any contractor or you have to simply ask the services to install the device, because the cost goes on increasing with every extra step you take in the installation process.

Following things are to be arranged for installing a central air conditioning:

* Estimate HVAC unit cost.
* Determine the size. Choose a normal residential size.
* Make an estimate of the labor costs.
* Bring the additional materials you want.

All these will cost you something between $3500 to $6000.