If you have decided to have air conditioning installed in your home, you will want to find someone that is dependable to install it but at the same time, you will also want someone that is not going to charge you too much. In order to find the right person to install your chosen system, it is often best to go to the internet at look for reviews of the different installation companies in your area or perhaps o directly to some of the companies own websites an make your choice from there. In Sydney Australia, one of the sites that they may go to is sydneyairconditioningquotes but all cities and countries have similar sites that provide similar services. If you have not already decided which system you want installed in your home, most of these companies will be glad to advise you as to which would be best for your particular house, taking into consideration the larger the system, the more expensive it will be to operate. If only one room is needed to have air conditioning, they may recommend a split system is installed. A split system has a condenser which is located outside and that is connected to a unit located inside the room that requires cooling. Although some people believe that split systems can only be used in instances where only one room needs cooling, they are mistaken as there are multi split systems also available and these can cool as many as 5 rooms. When a multi split system is used, a different sized indoor unit can be used in each room, making it cost effective however, it does still need an indoor unit in each room. Another alternative when several rooms need air conditioning is a ducted system. With a ducted system, the cool air is carried to each room that needs to be cooled, through ducts but even though ducts may be flexible, can take up space and so are usually only installed into larger houses. The advantage of these systems though are one, a separate indoor unit is not needed for each room and so the initial cost could be cheaper and secondly, as there is not a separate unit in each room, all that is visible in the room are inlet and outlet grills. As running costs for air conditioning can sometimes be expensive though, the size of the system must always take precedence in order to ensure an effective system at a reasonable price. Regardless of which system you choose though, it will need to be maintained properly in order for it to operate most efficiently and keep costs down. As some of this maintenance is needed to be carried out by professionals, at the time of installation, you may want to check with your installation company, their availability and rates for both routine maintenance and repairs if something should go wrong. Although many installation companies may have similar installation rates, their charges for maintenance services can differ greatly.