I am a repeat customer of Don't Sweat It Air and Heat, Inc., and have used them quite a number of times. The last time they came out it was just for the routine preventative maintenance they do a couple of times per year. Because I have used them more once, I can say that their employees are very polite and courteous people, and that they always do a professional and conscientious job. I am very impressed by their honesty, and the way they explain things to you. They tell you what needs to be fixed, and are not pushy about trying to sell you services and things that you don't really need. Don't Sweat It Air and Heat, Inc. always does exactly what they say they will do, and I really like that about them!