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 pipe replacement. Both solutions aim to bring back the original function of your pipes, however there are some distinct differences are important to understand.

Key Takeaways

  • Relining pipes is an affordable and swift process for restoring damaged pipelines.
  • CIPP lining is used in the relining of pipes.
  • Epoxy resin is used to line the inside portions of the pipe. It cures to create a new inner lining in the pipe.
  • Relining pipes is efficient, cost-effective and lasts up to 50 years.
  • Traditional pipe replacement involves digging up areas of the property in which pipes are situated.
  • The replacement of pipes is often necessary in the case of pipes that have been severely damaged.
  • A brand new pipeline that is installed by the replacement of a pipe has a long duration (75 up to 100 years).
  • The cost of replacing pipes is high and long-lasting.
  • The choice between pipe relining versus pipe replacement is based on the extent of damage caused.

In this article, we’ll talk about pipe relining and. pipe replacement, and find the one that best suits your needs better.

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

Pipe relining, also known as Cured-In-Place pipe (CIPP) lining is a state-of-the-art repair process that provides a cost-effective, swift solution for restoring damaged pipelines.

Here’s how it works:

  1. A technician cleans the pipeline using high-pressure water jetting or mechanical cleaning.
  2. Then, they place epoxy resin made from polyester or fiberglass liner inside the existing pipeline.
  3. The liner cures by forming a new lining within the old pipeline that’s just as long-lasting as the new one.

Advantages Pipe Relining

  • Time-efficient – It usually takes only 2 to three hours for the whole process, as opposed to digging for days for traditional methods of replacing pipes.
  • Cost-effective Since there is no excavation or removal necessary for pipe relining, it can save almost half of the price you’d pay for traditional repairs.
  • Durability – The lining that is created by pipe relining may last up to 50 years!

Cons of Pipe Relining

  • Not suitable for the most damaged pipes. If you have significant damage such as cracks or collapses or misaligned joints in your sewer line then pipe relining is not a possibility.

What is Pipe Replacement?

Pipe replacement involves digging up portions of the yard/sidewalk/driveway where underground pipes are located. These areas could contain collapsed pipes or extremely damaged ones due to negligence or aging.

The steps below are the most traditional pipe replacements:

  1. An excavation team digs up 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. Then, they construct an entirely new pipeline instead of the one they had previously installed.

Pros and Cons of Pipe Replacement

  • Suitable for severely damaged pipes If you have to replace pipes with significant damage or corrosion, pipe replacement is the best solution.
  • Long-lasting – The latest pipeline, which is replaced by pipe has a long lifespan (75 or 100 years) which makes it a great alternative for homeowners seeking an option that is long-lasting.

Pros of Pipe Replacement

  • Extraction work that is costly for pipe replacement can be time-consuming and expensive.
  • The process is time-consuming. Traditional pipe replacements could take several weeks, based on the nature of the project and depth of excavations required.

Which one is best for you?

The choice between replacement or relining your pipes is mostly based on the level of damage caused. If your pipes suffer from minor issues like cracks, or minor leaks, then the relining process is probably the best option, as it is less costly as well as quicker than traditional pipe replacements.

But if there are severe damages like collapses or breaks it is recommended to consider conventional pipe replacement, though 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

FAQs

What is the process of relining pipes?

Relining pipes is a process which consists of creating a new pipe within the existing damaged pipe. This is done by inserting a flexible liner in the old pipe and then placing it into place. Once cured, the new pipe is completely free of joints and seams that improve the structural integrity of the pipe.

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

Traditional pipe replacement involves digging up and physically dismantling old pipes before replacing them with new ones. Contrary to this, pipe relining doesn’t require excavation. Instead it’s done by utilizing technology that allows repair of pipelines without digging large areas of land.

Which option is less expensive: the pipe relining method or traditional pipe replacement?

Relining pipelines typically costs less than traditional methods for repair of pipelines because there are no expenses related to excavation or other methods needed for removing and replacing old pipes.

Can all kinds of pipes be changed?

Certain types of pipes can be successfully relined. The plumber will have to inspect the situation to determine if it’s feasible to line your specific kind of pipes. But, the majority of contemporary pipes are relined using this technique.

How long does the process of pipe relining take?

The exact duration of the procedure is contingent upon various aspects like location, environment, and type of damage. However, the average Pipe Relining task usually takes between 2 and 3 days depending on how many metres need to be lined..

In the end, if you would like to steer clear of digging work and save cash while restoring damaged pipelines’ function to its maximum you should consider using our Perth Blocked Drains Plumber ‘s swift and efficient pipe relining solutions. Contact us today!

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