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 popular methods are pipe relining and replacement of pipes. Both approaches aim to restore the function of your pipelines, but there are some distinct differences are important to understand.

Key Takeaways

  • Pipe relining is a cost-effective and fast method for repairing damaged pipelines.
  • Linings made of CIPP are used for pipe relining.
  • Epoxy resin is utilized to line the inner portions of the pipe. It cures to create a new inner lining for the old pipeline.
  • Relining pipelines is time-efficient, cost-effective, and will last up to 50 years.
  • Traditional pipe replacement involves digging up sections of land where pipes are located.
  • Replacement of pipes may be required for pipes that are badly damaged.
  • A brand new pipeline that is installed by pipeline replacement has a longer lifespan (75 up to 100 years).
  • Pipe replacement is costly 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 discuss pipe relining and. pipe replacement and find out which one will suit your needs more.

Is Pipe Relining a thing?

Pipe relining or Cured-In-Place Pipe (CIPP) lining is a cutting-edge repair method that offers a cost-effective and fast solution for repairing damaged pipelines.

Here’s how it will work:

  1. A technician cleans the pipeline by using high-pressure water jetting or mechanical cleaning.
  2. Then, they place epoxy resin made from polyester or fiberglass liner inside the pipeline.
  3. The liner is cured and forms a new lining in the old pipeline that’s just as robust as a new one.

Pros of Pipe Relining

  • Time-efficient – It typically takes about 2 to 3 hours of time to accomplish the entire process, as opposed to digging for many days using traditional methods of replacing pipes.
  • Cost-effective Since there is no excavation or removal required in pipe relining This can help you save more than 50% of the cost you’d be paying for conventional repairs.
  • Durability – The new liner made by pipe relining could last up to 50 years!

Con’s of Pipe Relining

  • Not suitable for very damaged pipes. If there are serious damages such as cracks, collapses or joints that aren’t aligned properly 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. These areas could contain broken pipes, or very damaged ones due to age or neglect.

The following steps make up the majority of traditional replacements for pipes:

  1. An excavation crew digs access to the deteriorated underground pipe.
  2. The old pipeline is detached and dug up, generating a lot of debris that needs to be disposed of.
  3. They then install the new pipeline on top of the one they had previously installed.

Benefits of Pipe Replacement

  • Ideal for pipes that have been severely damaged - When you need to replace pipes that have significant corrosion or damage, pipe replacement is the best solution.
  • Longer life span – The new pipeline that is installed by pipe replacement has a long lifespan (75 bis 100 years) making it an ideal choice for homeowners in search of a permanent solution.

Pros of Pipe Replacement

  • It is expensive – Excavating work required for the replacement of pipes is lengthy and expensive.
  • Long-lasting – Pipe replacements could take several weeks, based on the extent of work and the extent of excavation required.

Which one should you choose?

The decision to choose between replacement or relining your pipes is largely based on the amount of damage caused. If your pipes suffer minor issues like cracks, or minor leaks, replacing them is likely to be an ideal option as it is less costly and also quicker than traditional pipe replacements.

If there are major damage such as breaks or collapses the best option is traditional pipe replacement although it could be more costly and takes 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 & Answers

What is pipe relining?

Relining a pipe is a procedure which involves the creation of a new pipe inside the existing damaged pipe. This is done by inserting a flexible liner into the old pipe and curing it in place. Once cured, the new pipe does not have joints or seams, which enhances its structural integrity.

What does traditional pipe replacement differ from relining pipe?

Traditional pipe replacement involves digging and physically dismantling old pipes then replacing them with new ones. The alternative, pipe relining doesn’t require excavation. Instead it’s accomplished by utilizing technology that allows pipeline repair without digging up huge areas of land.

Which method is cheaper - liner relining or conventional pipe replacement?

Relining pipelines typically costs less than the traditional methods of pipe repair because there aren’t any costs related to excavation and other techniques necessary for removing and replacing old pipes.

Can all types of pipes be lined?

Some types of pipes are relined in a successful manner. The plumber will need to examine the situation to determine if it’s possible to line your specific kind of pipes. However, the majority of modern pipes can be fixed with this method.

How long does the pipe relining process take?

The exact length of time needed for the process depends on different aspects like location, environmental conditions, and type of damage. However the typical pipe Relining job typically takes around 2 days, depending on how many meters need to be lined..

If you are looking to stay clear of invasive excavation work and save your money while restoring damaged pipelines’ function to its maximum, consider opting for our Perth Blocked Drains Plumber ‘s quick and efficient pipe relining solutions. Get in touch with us!

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