Trenchless Sewer Repair Seattle. A Seattle homeowner had been informed they would need to replace their sewer line, but the cost to dig and replace was substantial. The Seattle homeowner began doing research online and found a solution in trenchless sewer repair. Trenchless sewer repair will save your landscaping, driveway, walkways and most important – your home! If you live in Seattle and do not want to dig and replace your sewer line, choose trenchless sewer repair to save your property!