Pipe relining versus pipe replacement.
Pipe relining is a trenchless no-dig repair that creates a new pipe inside the existing damaged pipe using epoxy resin.
Relining costs $400-$800 per linear metre.
Pipe replacement costs $200-$500 per metre plus reinstatement costs.
Choose relining when pipe has cracks but hasn't collapsed, runs under driveways or landscaping, or you want fast single-day repair.
Choose replacement when pipe has fully collapsed, diameter needs increasing, or pipe runs through easily accessible ground..