I have a boarding kennel and have always struggled with negative pressure issues in the building. After dealing with this problem for many years, it was time to replace the heating and a/c system. I decided to contact service legends, and am I ever glad that I did. I had the consultant up on Monday, got a price and plan that same day, had the technicians out on Tuesday, and they finished on Wednesday. They solved the negative pressure issue, they were polite, efficient, and cleaned up when they were done. I would highly recommend this company to anyone!