Understanding the Differences Between Pipe Relining and Pipe Replacement

Posted by Adelaide Blocked Drains Plumber on 28 Dec 2025

In the case of fixing damaged pipes, the two most common solutions are pipe relining and replacement of pipes. Both of these methods are designed to restore the functionality of your pipes, however there are distinct differences you need to know.

Key Takeaways

  • Pipe relining is an economical and swift process for restoring damaged pipelines.
  • Linings made of CIPP are used for pipe relining.
  • Epoxy resin is used to line the internal areas of the pipe. This is cured to form a new inner lining in the pipeline.
  • Pipe relining is time-efficient, cost-effective and lasts for up to 50 years.
  • The traditional method of replacing pipes is 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 installed with pipe replacement has a long lifespan (75 up to 100 years).
  • Pipe replacement is costly and long-lasting.
  • The decision between pipe relining or pipe replacement depends on the degree of damage that has been caused.

In this article, we’ll talk about pipe relining vs. replacing pipes and figure out which one will suit your requirements more.

Is Pipe Relining a thing?

Pipe relining or Cured-In-Place Pipe (CIPP) Lining is a state-of-the-art repair process which offers a low-cost and rapid solution for the repair of damaged pipelines.

Here’s how it works:

  1. Technicians clean the pipeline using high-pressure water jetting or mechanical cleaning.
  2. They then apply epoxy resin made of polyester or fiberglass liner inside the pipeline.
  3. The liner is cured by forming a new lining in the pipeline that’s as durable as a new one.

Pros of Pipe Relining

  • The process is time-efficient, taking only 2 to 3 hours to complete the entire procedure, compared to excavating for days in traditional pipe replacement techniques.
  • Cost-effective - Because no excavation or removal is required in pipe relining It can save you nearly half of what you would have to pay for repairs that are traditional.
  • Durability – The lining made by pipe relining could last up to 50 years!

Pros and Cons of Pipe Relining

  • Not suitable for severely damaged pipes - If there are major damages like collapses, cracks, or joints that are not aligned correctly in your sewer line then pipe relining could not be possible.

What 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 caused by the effects of time or neglect.

The following steps make up the majority of traditional pipe replacements:

  1. An excavation crew digs access to the decayed 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 put in a new pipeline in place of the old one.

Pros and Cons of Pipe Replacement

  • It is suitable for pipes with severe damage Ideal for severely damaged pipes – If you must replace pipes that have significant damage or corrosion, pipe replacement is the best option.
  • Long lifespan – The new pipeline installed through pipe replacement has a long life (75 bis 100 years) making it an ideal choice for homeowners in search of a permanent solution.

Pros of Pipe Replacement

  • Extraction work that is costly to replace pipes can be long and costly.
  • It is time-consuming. Pipe replacements can take a few weeks based on the nature of the project and the depth of excavations that are required.

Which one should you choose?

The choice between either relining or repairing your pipes mostly is contingent on the amount of damage caused. If your pipes suffer from minor damages like cracks or leaks of a minor size, it is likely that relining is the best option, as it is less costly and also quicker than traditional replacements.

But if there are severe damages like collapses or breaks it is recommended to consider replacing the pipe with a traditional method, even though it could be more costly and will 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 the process of relining pipes?

Relining of pipes is a procedure that creates a brand new pipe within the existing damaged pipe. This is done by inserting a flexible liner in the pipe that was damaged and the process of curing it. After curing, the new pipe has no joints or seams that improve its structural integrity.

What does traditional pipe replacement differ from relining pipe?

Traditional replacement of pipes involves digging and physically removing old pipes after which they are replaced with new ones. However, pipe relining isn’t a requirement for excavation. Instead, it’s completed by utilizing technology that allows repairs to pipelines without digging large areas of land.

Which is more cost-effective - the pipe relining method or traditional pipe replacement?

Relining pipes typically cost less than traditional methods for pipeline repair as there are no costs associated to excavation and other techniques required for the removal and replacement of old pipes.

All kinds of pipes can be relined?

Not all types of pipes are relined effectively. Your plumber will need to examine your situation to determine if it’s possible to line the particular kind of pipes. However, the majority of modern pipes can be fixed using this technique.

How long does the process of relining pipes last?

The exact duration of the process depends on different aspects like location, climate and the kind of damage. However, the average pipe Relining job usually takes 2-3 days, depending on how many metres need to be lined..

In the end, if you wish to avoid digging works and save money in the process of restoring your damaged pipelines’ functionality Consider utilizing our Adelaide Blocked Drains Plumber ‘s rapid and effective pipe relining solutions. Get in touch with us!

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