This company installed our new unit a few years ago and it has been perfect. They are very honest and we never have to worry about who to call if/when we need service. Mark does the maintenance on schedule and is a real pleasure to have in your home. And my wife retired as a Service Manager for an A/C company, learned a lot about other companies and uses Desert Sands and not her old company so that should tell you something. We cannot recommend them highly enough. Would give 10 stars if we could.