The cost of trenchless sewer repair varies based on factors like the extent of damage, pipe length, and local labor rates. On average, homeowners can expect to pay between $6,000 and $12,000 for trenchless methods such as pipe lining or pipe bursting. While the upfront cost may be higher than traditional methods, trenchless repair often proves more cost-effective in the long run by minimizing property disruption and restoration expenses.