Abstract: A ratchet type closet flange for replacing broken cast iron closet flanges in old buildings or in new construction in place of conventional cast iron closet flanges. The patented invention comprising a flange body, a cup, a rubber seal, and a means for applying pressure. After removing the broken closet flange, the ratchet type closet flange is inserted into the existing pipe. A compression seal is formed between the flange body and the inside of the pipe by applying pressure to the flange body and the cup, forcing a compression seal between the rubber seal and the pipe. The ratchet type closet flange may slide up and down inside the pipe to achieve the desired height.