I highly recommend Gosford Airconditioning. The guys who installed our system did a fabulous job, made sure I was happy with decisions that had to be made during the installation process, patiently changed the plan when I asked and left everything immaculate - all this on a long 10 hour work day for them! They also included a rerouting of the power source as part of the cost as it gave them an easier run into the house. The system is so quiet I have to check it's on! Great service. Great price. Happy customer!