Another sleepless night and I feel like hell ... so I am going to have ducted a/c installed. The upstairs of my house contains kitchen, family room, dining, lounge and 3 bedrooms. The house faces N/W with a lot of glass in the front. There is a wide covered verandah running the length of the house which is tiled and radiates heat into the front rooms, ATM I have an 12yr old a/c unit which keeps the lounge area cool but will need replacing before long. Am in the process of requesting a quote, any advice on what I should ask and expect?