Air One Cooling and Heating has done an excellent job adding a new HVAC unit and tankless water heater to my 80-year-old home:Mr Massey discussed my needs, visited my home, took pictures and appropriate measurements, and prepared a quote for the cost of the entire system with special considerations for my concerns about cost, location of the units and whether or not I should get a heat pump or gasoline furnace.While at least 3 other companies that gave me quotes told me that they were uncertain about obtaining supplies particularly ductwork for the entire system Air One had all the ductwork and other supplies to install the entire system from scratch. In fact, Air One offered higher-efficiency units at about the same price that the other companies offered with less efficiency.The Air One team worked with me and the city/county inspectors to ensure that all code requirements were met.In the middle of the project, I had to unexpectedly replace our sewer system. Mr Massey and his team worked with the other plumbing contractor to ensure that all system requirements were met.This project was a major investment for me. Mr Massey diligently worked with me to get the best price and financial support with a 5-year 0% interest loan! None of the other companies could beat that!Finally, its important for me to say that Mr Massey and the Air One team were gracious gentlemen. They treated my family and the special needs of my home with respect at ALL times. My new HVAC system works great! I am grateful that Air One was recommended to me by another satisfied customer. Thank you, Air One.