I first went to Stan's Heating and Air Conditioning on a number of recommendations from colleagues and friends. I was having an issue with my last AC unit and Stan's was the only company able to successfully diagnose the problem. After two other companies failed to do so, Stan's came in and corrected it promptly. That was four years ago and I have been using them since. I most recently had them install a new AC and heating unit for me and it is working very well. I am happy with their service and their workers are very competent and professional.