We called Total Comfort on a Monday evening and left a message. They responded promptly Tuesday morning and had a service man out here within two hours. He did an excellent job, correcting mistakes made by a previous provider. He was very thorough, checked and rechecked everything he did. Went above board checking out things that were not even related to the original problem. All work is guaranteed. Very polite, very professional. I certainly will use them again and recommend them to friends. The price was very reasonable compared to other companies we have used.