We have used Friedrich Heating & Air for the installation of HVAC systems in our last 2 homes. Walt, Bob, and Mike are the best! We are frugal folks & their prices are great. Work is completed when promised, and they leave the surroundings cleaner than when they showed up. Their employees are diligent, expert, and courteous. Even after the job is done, if you have any issues, Walt, Laura, or Bob will get back to you immediately. Now THAT is excellent service!