I have been using Flanders Heating and Air Conditioning for quite a while now, overall, they have provided me with very reliable and quality service. Whenever I have any issues I give them a call and they are able to talk me through everything and schedule a time for them to come by to diagnose any issues. The only issue I had with them recently was fairly minor but it bugged me. I contacted them for a job and they completed the work without providing me with a quote before they started. The work went well but I wish they wouldn't just put a bill in my face. I will still keep using them in the future.