My garage is flooding, the last time this happened the guy cleared the drain in front of the house (about 2 years ago). How do I go about clearing/unclogging it with out calling him again. I believe it is the sewer line. There is a drain in the garage floor but everything is coming up. Also at my mother's place during the heavy rain, the rain comes up through her commode and tub and floods the place she live on the top floor. I think it may be the stack pipe on the roof need to be fixed. Any suggestion to either will help. Thanks.