Drain relining is a common repair technique used to fix damaged or aged sections of drains and sewers. The drain relining process involves one of our plumbers inserting a durable liner or tube coated in resin into the existing drain or pipe. This essentially repairs any damage by creating a new drain pipe within the old one. Drain lining is more common house residential drains and households.   Slip lining is a very similar process. With slip lining, a new pipe (called a slip liner) is inserted into the old pipe to make repairs. It is typically made of HDPE (High-Density Polyethylene). The space that remains between the old pipe and slip liner, is filled with a durable material to provide stability. Slip liners are often used for cases with larger pipes like sewers and water lines.   Pipe relining is an overarching term that covers the general repair and relining of pipes. Although it is typically a term used for larger diameter pipes like drain pipes and sewer pipes, and larger diameter industrial pipes. The damaged pipe is first cleaned, and then a resin-coated liner is inserted and cured to form a new pipe within the old one.