In addition, sewer scoping can help you avoid unexpected expenses after purchasing a home. If the sewer line is in poor condition, you may be faced with the cost of repairs or replacement. This can be a significant expense, especially if you were not anticipating it. By having the sewer line inspected during the home inspection process, you can have a better understanding of what you may be facing in terms of repair costs and can factor this into your decision about whether or not to purchase the home.