Called on a Sunday and left a message that I had a blocked drain line. Jim called back within an hour and we talked through the problem. He made some suggestions since I was working on clearing it myself. He said he would call again within an hour or 2 after he finished the call he was presently on. He called back to verify I still needed help when he finished the other job and he was here within 20 minutes. He cleared the drain in no time and the chardge was very reasonable, especially for a weekend emergency.