cost to connect to sewer main
1 Private plumbing costs are to be paid to the contractor who will handle connecting your house to the city sewer branch at your property line which could range from $1,500 to $5,000.2  To find a professional plumber in your area, websites such as HomeAdvisor.com can help you get more than three quotes.owever, the cost of sewer hookup is not affordable to many. 1  Hookup fees to the city sewer cost a lot because the city or town providing the system needs to get back some of the costs of running sewer lines to your area. 2  Fees can cost anywhere from $5,000 to more than $20,000.