What is pipe relining and why might you need it? Pipe relining is a trenchless method that uses Cure in Place Pipe (CIPP) as a replacement for broken or damaged sewer lines. This is in contrast to pipe boring or a full pipe burst repair. This process allows us to insert a resin-lined felt pipe into your existing pipe and repair any damage that might be there. This new cured pipe is jointless, seamless, and resistant to corrosion for 50 years! If you need your pipes repaired, call us at Harts Services Pine Street!