I was having problems with my Navien heating unit that nobody could fix. The unit we have is a combination water heater and boiler so it affected both our hot water and heat for the house. We were tired of taking cold showers and were anticipating a cold house as cooler weather approached. It was BC Express Inc Heating & Air Conditioning that was finally able to find the solution. Chris came to the house. He was good. He researched the unit, and found the problem. He did a nice, neat job. He called the right shots and knew what he was doing. BC Express Inc Heating & Air Conditioning should be commended for sending an excellent repairman who did an excellent job. They are now the place I will always call for future repairs!