Alex arrived right on time. He assessed the problem in the kitchen sink and asked questions regarding how and when it had happened. He then checked out all the possible places where damage may have occurred from the backup in the kitchen sink. There was no additional problem. Alex then went on the roof and began snaking out the drainage pipe. The process took a while since the blockage was over 55' down. By the time he finished the blockage was gone and my kitchen was draining properly. Than you Alex.