I've had very good service from Hendrix Air, I'd give them the highest rating. They come out, they installed the new heating and cooling system, and they've been up to double check. They make sure everything is working good, they clean up, and I've never had to call them. I really appreciate their services. I would recommend them to others, I already have. Recently, they did a service on my machine and made sure everything was clean with the air filters. They called recently to offer more services, which was nice. I've going to call them back to get more things done.