Sewer Relining Los Angeles. Sewer relining is a huge market in the Los Angeles area. The geography, weather, and natural disasters make sewer relining a very environmentally friendly option to the older method of digging and replacing sewer pipes. The mixture of Clay sewer pipes and earthquakes creates the demand for sewer relining in Los Angeles. If you reside in Los Angeles and are interested in sewer relining, please call us any time.