On Saturday morning we woke up with no cold water in our upstairs bathroom. We called a number of plumbers on HomeStars and Valentin was the only one who picked up the phone. He asked a number of good questions, determined our problem and promised to arrive within the hour, as time is of the essence when dealing with frozen pipes. He arrived on time, he was very tidy and considerate, and while our pipes defrosted, he assisted us with some additional minor plumbing problems we had in our house, all at no extra charge (since he was there waiting for the pipes anyway). He also diagnosed and repaired a problem with our shower that we had not even picked up on. Valentin checked and re-checked his work when he had finished to ensure that the job was done properly, and offered us valuable tips to avoid a similar problem in the future. We were very impressed by Valentin's thoroughness and professionalism and would unhesitatingly recommend him to others and hire him again.