I recently used iEnergi to replace a ducted heating system for a new one. While in the process of pricing around trusted tradesperson recommended these guys out of Dandenong sth. I gave them a call and right from the beginning they showed me much confidence. From the time they priced it for me through to the completion of the works it was nothing but a breeze to deal with. The installer was tidy with his workmanship and was very pleasant to deal with. I have since recommended them to others who have been just as satisfied.