I want to commend you for the excellent technician (Mark) that you sent to take care of our ongoing heating problem. Mark was thorough and efficient in addition to being gentleman. My wife and I thank your quick response and for the high quality of your staff. Please be advised that your technician John who had briefly accompanied Mark on his last trip here, noted the smell of gas in our home and was able to trace a gas leak to our fireplace. Other than the fact that we'd been without heat for a few days, it was a very pleasant experience dealing with your company and such qualified professionals.