Replace the kitchen sink drain to the main sewer line in order to do away with old repairs and old cast iron we will redo all the drain lines in the cabinet for the sink. We will dig up the main line that way we can replace that entire kitchen sink line allowing us to warranty our work for 1 year. They will be a part of our service partner plan for the year as well. 5% military discount applied to the job. Original cost of the job $4200. New cost after military discount $3990