we used air and water to install a daikin split system and a daikin reverse cycle ducted system. they were very efficient with their time and very knowledgable about the product to the point where they were able to install an extra vent where we didn't think we would be able to get one. after the install was complete the guys were very thorough with their clean up inside and outside the house. we would recommend air and water to anyone who is looking for a "comfort provider" whether it be heating, cooling, or solar hot water systems.