I contacted Cool Zone for a repair / maintenance program on an existing Lennox system on its last legs after it stopped cooling my home as it should have. They sent a very capable maintenance technician to inspect and report on the existing system. He found multiple leaks in the coils and recommended a new system, but fixed it temporarily. The system stopped cooling after he left, and the company sent out a service technician that same day to diagnose the problem, which he did. They also scheduled Shaun to come out before July 4 to analyze the problems with the system, which he did (on late notice). He recommended the perfect system for my house, and Cool Zone installed it within 5 days (around holidays and weekends). Excellent system, excellent customer support, and very happy with everything that Cool Zone did – including their customer service. Highly recommended A++++ service!!!!