Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Perth Blocked Drains Plumber on 24 Nov 2025

In the case of fixing damaged pipes, two common solutions are pipe relining and replacement of pipes. Both solutions aim to bring back the original function of your pipes, however there are some distinct differences must be aware of.

Key Takeaways

  • Pipe relining is an economical and fast method for repairing damaged pipelines.
  • Linings made of CIPP are used for the relining of pipes.
  • Epoxy resin is used to line the inner areas of the pipe. This cures to creates a new inner lining inside the old pipeline.
  • Relining pipes is efficient, cost-effective, and can last for up to 50 years.
  • The traditional method of replacing pipes is digging up areas of the property where pipes are located.
  • Replacement of pipes may be required for severely damaged pipes.
  • A brand new pipeline that is installed by the replacement of a pipe has a long life span (75 -100 years).
  • Replacement of pipes is expensive and laborious.
  • The choice between pipe relining and pipe replacement is based on the extent of damage that has been caused.

In this article, we’ll go over pipe relining as opposed to. replacing pipes and figure out which one suits your needs better.

The term "pipe relining" is used to describe the process of repairing pipes.

Pipe relining or Cured In-Place Pipe (CIPP) Lining is a cutting-edge repair method that offers a cost-effective and rapid solution for the repair of damaged pipelines.

Here’s how it will work:

  1. A technician cleans the pipeline with high-pressure water jetting or mechanical cleaning.
  2. They then apply epoxy resin made from fiberglass or polyester inside the pipeline.
  3. The liner cures, creating a new inner lining within the pipeline that’s as robust as a new one.

Pros of Pipe Relining

  • Time-efficient – It typically takes just 2 to 3 hours of time to accomplish the entire process, as opposed to digging for days for traditional pipe replacement techniques.
  • Cost-effective because no excavation or removal is necessary for pipe relining, it can save almost half of the price you’d have to pay for repairs that are traditional.
  • Durability – The new lining that is created by pipe relining may last up to 50 years!

Pros and Cons of Pipe Relining

  • Not recommended for extremely damaged pipes - If there are serious damages like collapses, cracks, or joints that are misaligned in your sewer line then pipe relining may not be possible.

What exactly is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. These sections may include collapsed pipes or extremely corrosion-prone ones, due to negligence or aging.

The steps below are the most traditional pipe replacements:

  1. A team of excavation workers digs access to the deteriorated underground pipe.
  2. The old pipeline is detached and dredged out, producing a lot debris which needs to be removed.
  3. Then, they install a new pipeline in place of the old one.

Pros of Pipe Replacement

  • Ideal for pipes that have been severely damaged In the event that you need to replace pipes with significant corrosion or damage, pipe replacement is the most effective option.
  • Long-lasting – The latest pipeline replaced with pipe has a lengthy lifespan (75 or 100 years) making it an ideal choice for homeowners in search of a permanent solution.

Pros and Cons of Pipe Replacement

  • The work of excavation required for the replacement of pipes is time-consuming and expensive.
  • Long-lasting – Pipe replacements could take several weeks, based on the size of the work and the depth of excavations needed.

Which one is best for you?

The decision to choose between the option of relining or replacing your pipes mostly is contingent on the amount of damage caused. If your pipes have minor damages like cracks or minor leaks, then it is likely that relining is the best option, as it’s less costly as well as quicker than traditional replacements.

But if there are severe injuries, like breaks or collapses the best option is traditional pipe replacement although it could be more costly 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

Common Questions and Answers

What is pipe relining?

Relining pipes is a process which consists of creating a new pipe inside an existing damaged pipe. It is accomplished by inserting a liner that is flexible into the old pipe and then the process of curing it. Once it is cured, the new pipe is completely free of joints and seams, which enhances its structural strength.

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

Traditional pipe replacement involves physically taking away old pipes, then replacing them with new ones. In contrast, pipe relining doesn’t require excavation. Instead it’s accomplished using technology that allows for pipe repair without digging up large areas of land.

Which option is less expensive: liner relining or conventional pipe replacement?

Pipe relining generally costs less than the traditional methods of pipe repair because there are no costs associated to excavation or other procedures needed for removing and replacing old pipes.

Can all kinds of pipes be changed?

Some types of pipes are relined in a successful manner. The plumber must examine your situation to determine if it’s possible to line the particular kind of pipes. But, the majority of modern pipes can be repaired by this technique.

How long will the process of pipe relining take?

The exact length of time needed for the procedure is contingent upon various factors such as location, environment and the type of damage; however the average pipe Relining job usually takes 2-3 days depending on how many metres require lining..

If you want to avoid invasive excavation work and save money while restoring your damaged pipelines’ full function, consider opting for our Perth Blocked Drains Plumber ‘s rapid and effective pipe relining services. Contact us!

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