Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Melbourne Blocked Drains Plumber on 16 Oct 2025

In the case of fixing damaged pipes, two popular solutions are pipe relining and pipe replacement. Both solutions aim to restore the function of your pipes, however they differ in a way that must be aware of.

Key Takeaways

  • Pipe relining is a cost-effective and quick method of repairing damaged pipelines.
  • The lining of CIPP is utilized in the relining of pipes.
  • Epoxy resin is used to line the inside areas of the pipe. This cures to creates a new inner lining inside the pipe.
  • Relining pipelines is time-efficient, economical, and can last for up to 50 years.
  • Traditional pipe replacement involves digging up portions of property where pipes are.
  • Replacement of pipes may be required for pipes that are badly damaged.
  • A brand-new pipeline installed with pipeline replacement has a longer lifespan (75 -100 years).
  • The cost of replacing pipes is high and lengthy.
  • The choice between pipe relining versus pipe replacement will depend on the severity of damage that has been caused.

In this article, we’ll discuss pipe relining as opposed to. replacing pipes and figure the one that best suits your needs better.

Is Pipe Relining a thing?

Relining pipes or Cured-In Place Pipe (CIPP) lining is a cutting-edge repair method that provides a cost-effective, quick solution to repair damaged pipelines.

Here’s how it works:

  1. Technicians clean the pipeline with high-pressure jetting or mechanical cleaning.
  2. Then, they apply epoxy resin made of polyester or fiberglass liner inside the pipeline.
  3. The liner gets dried by forming a new liner within the old pipeline that’s just as durable as a new one.

Pros of Pipe Relining

  • Time-efficient – It usually takes only 2 to three hours for the entire process, as opposed to digging for several days with traditional pipe replacement techniques.
  • Cost-effective because there is no excavation or removal necessary in pipe relining work This can help you save more than half of the amount you spend on traditional repairs.
  • Durability – The lining that is created by pipe relining may last for up to 50 years!

Cons of Pipe Relining

  • Not suitable for severely damaged pipes - If there are serious damages such as cracks or collapses or joints that are not aligned correctly in your sewer line then pipe relining might not be feasible.

What exactly is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. The areas may contain damaged pipes, or highly corrosion-prone ones, due to age or neglect.

The steps below are the most traditional pipe replacements:

  1. An excavation team digs access to the damaged underground pipe.
  2. The old pipeline is detached and dug up, generating a lot of debris which needs to be removed.
  3. Then, they put in the new pipeline on top of the one they had previously installed.

Benefits of Pipe Replacement

  • Perfect for severely damaged pipes In the event that you need to replace pipes that are suffering from severe corrosion or damage, pipe replacement is the ideal solution.
  • Long life – The brand new pipeline installed through pipe replacement has a long lifespan (75 or 100 years) making it an ideal choice for homeowners in search of an ongoing solution.

Pros of Pipe Replacement

  • Costly – Excavation work requred for pipe replacement can be time-consuming and expensive.
  • The process is time-consuming. Traditional pipe replacements can take a few weeks based on the nature of the project and depth of excavations required.

Which one is best for you?

The decision of relining or replacing your pipes mostly is contingent on the extent of damage caused. If your pipes are suffering from minor damages like cracks or minor leaks, relining would probably be the better option since it is less costly and is also faster than traditional replacements.

However, if you have severe injuries, like breaks or collapses, then you should consider traditional pipe replacement although it will cost more and may take longer.

Pipe Relining Pipe Replacement
Procedure CIPP lining using epoxy resin Excavating and replacing the old pipeline
Pros Time-efficient- 2 to 3 hours to complete Suitable for severely damaged pipes
Cost-effective – Almost half of traditional costs. New pipeline lasts for 75 to 100 years
Durable – Lasts up to 50 years
Cons Not suitable for severely damaged pipes Costly
Time-consuming
When to choose Minor damages like cracks or minor leaks Severe damages like collapses or breaks

Frequently Asked Question

What is the process of relining pipes?

Relining a pipe is a process that involves creating a new pipe inside an existing damaged pipe. This is done by inserting a liner that is flexible into the old pipe and then placing it into place. After curing, the new pipe is free of joints or seams, which increases the structural integrity of the pipe.

What is the difference between traditional pipe replacement and differ from pipe relining?

Traditional pipe replacement involves excavating and physically dismantling old pipes, then replacing them with new ones. The alternative, pipe relining isn’t a requirement for excavation. Instead it’s carried out by using technology that permits repairs to pipelines without digging large areas of land.

Which one is less expensive - the pipe relining method or traditional pipe replacement?

Pipe relining typically costs less than the traditional methods of repair to pipelines since there are no expenses related to excavation or other procedures required for the removal and replacement of old pipes.

Can all types of pipes be reflined?

Not all types of pipes can be relined successfully. Your plumber will have to inspect your situation to determine if it’s possible to line your specific type of pipes. However, most new pipes may be relined by this method.

How long does the process of relining pipes last?

The precise time needed for the process depends on different variables like the location, the environment and the kind of damage. However, the average pipe Relining task usually takes between 2 and 3 days, depending on the number of meters need to be lined..

If you want to avoid invasive excavation work and save cash while restoring your damaged pipelines’ function to its maximum Consider utilizing our Melbourne Blocked Drains Plumber ‘s swift and efficient pipeline relining services. Get in touch with us!

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