Before you call a plumber, always give the Public Works Department a call. We will send our sewer maintenance crew out to check the sewer main. It is possible the problem could be a blockage in the sewers main line. If that is the case our crews will clear the line and alleviate the problem therefore saving you the cost of hiring a plumber. Give us a call and let us check it out. If the sewer problem is on the cities side we will fix the problem. If the problem is on the homeowners side we will notify you and inform you that, yes, you need to call a plumber. Give us a call first at 281-478-7270.