I highly recommend McMaster Air & Heat! I interviewed three companies to do a/c, furnace, and duct replacement. I was most impressed with James at McMaster Air & Heat. He provided a very clear quote with various options, answered all my questions, and provided references (who were all very satisfied and recommended the company). I then felt confident in proceeding with McMaster. From start to finish, everything went smoothly. All the crew were courteous, professional, took pride in their work, and left the home clean. All the work passed the HERS Inspector and the City Inspector.