B. Carlson Heating, Air Conditioning & Plumbing, Inc was a pleasure with which to work. I work with a company that's outside their local area, but they were quick with providing me a good quote and getting the job done. They did some preventative maintenance work on our air conditioning units at the medical facility. Everything went great, and although I did not interact with their technicians, I know that they did a good job changing the filters and everything else they needed to do. We just started using B.Carlson, and we would use them again.