Los Angeles Sewer Pipe Lining. If you live in the Los Angeles area, you’ve probably heard about sewer pipe lining and the momentum this technology has gained over the past decade. Los Angeles and the West Coast of the United States is a prime market for sewer pipe lining. The hills of Los Angeles and the different depths make it difficult to dig and replace sewer lines. Trenchless sewer pipe lining will add 50 + years onto the life of your sewer pipe!