Working in Apartment Property Management, I once had an extensive basement unit renovation which required all plumbing work to be done from scratch, i.e. to cut the concrete floor open to put down new drainage system for toilet and shower, and to connect it to the existing main drainage pipe of the building, to install new air vent lines, to install new water line etc. City Hall Building Permit Department only allowed Master Plumber License carrier to do such work, and Andrew came into the place. He did an excellent work, which not only to satisfy the Building Permit Inspection, but the whole drainage system has never failed once for years after the work was done. I have used his service many times since and it was always a great satisfaction. He was always reliable, efficient, honest, friendly, knowledgeable, optimistic, and charge a very reasonable fee for each work. Once I was out of country and there was a main water line broken in a 15-unit apartment building. I was panicked and gave him a call. He was extremely busy at the time but still managed to go to the site and fix the issue in minutes. I highly recommend him for any plumbing work. He is the best I know in K.W. area.