I've used this service for almost ten years to maintain the HVAC that came with my home. By the time it died, it was 23 years old. That's a testament to how well they kept it up. When it finally gave out in May of 2017, I called them out. They said they'd have a new Maytag unit installed the next day. They did, and it's been running like a dream. Cant say enough good things about this company and it's employees.