How much sewer line replacement should cost. Average costs and comments from CostHelper’s team of professional journalists and community of users. The traditional dig .Sewer Services. Is your home or the home you are buying connected to the city sewer system? Maybe it is connected to a cesspool, septic system, or a party line?.Professional Water and Sewer services for St. Paul, Minneapolis, and Greater Minnesota. Triple E Water and Sewer is your choice for water and sewer construction in Minnesota..Routine maintenance? Major emergency? Sewer line repair? Our technicians can fix it affordably and reliably..